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Research data keyboard_double_arrow_right Dataset 2016Publisher:RWI – Leibniz Institute for Economic Research Frondel, Manuel; Vance, Colin; Andor, Mark; Kussel, Gerhard; Schmidt, Christoph M.; Osberghaus, Daniel; RWI; Forsa;Mit einem Anteil von rund 30% am Endenergieverbrauch und etwa 20% an den CO2-Emissionen haben private Haushalte in Deutschland einen großen Einfluss auf die Umwelt. Gleichzeitig sind private Haushalte ein zentraler Adressat für politische Interventionen zur Bekämpfung des Klimawandels. Vor diesem Hintergrund hat die Politik zahlreiche Maßnahmen zur Verringerung des Energiekonsums und zur Förderung regenerativer Energietechnologien ergriffen. Diese politischen Maßnahmen bedürfen einer sorgfältigen Evaluierung ihrer Effektivität und Kosteneffizienz, um kostspielige Redundanzen durch sich überlappende Instrumente zu vermeiden. Eine solche Evaluation umwelt- und energiepolitischer Maßnahmen erfordert eine umfangreiche Datenbasis. Besonders im Bereich der privaten Haushalte waren solche Daten in Deutschland bislang nicht verfügbar. Die Reagibilität deutscher Haushalte auf Maßnahmen zur Bekämpfung des Klimawandels war daher weitgehend unbekannt. Das Sozial-Ökologische Panel stellt zu diesem Zweck umfangreiche, frei verfügbare Informationen zum Energieverbrauch und Umweltverhalten privater Haushalte bereit. Die Befragung wurde in vier Wellen durchgeführt. Es liegen Daten für die Jahre 2012, 2013, 2014 und 2015 vor. Diese Daten können anhand einer ID aneinander gespielt werden. Darauf aufbauend können ökonometrische Schätzungen und Analysen verschiedener Präferenzindikatoren sowie des Anpassungsverhaltens privater Haushalte an den Klimawandel durchgeführt werden. Dieser Datensatz umfasst die Daten der Erhebung im Jahr 2012. With a share of 30% in total final energy consumption and around 20% in CO2 emissions, private households in Germany strongly affect the environment. At the same time private households are an important target group for policy interventions to fight climate change. Against this background, numerous policy measures that intend to decrease energy consumption and to support renewable energy technologies have been introduced. These policy measures call for accurate evaluation to avoid expensive redundancies due to overlapping policy instruments. The evaluation of energy and environmental policy measures requires comprehensive and reliable data. So far such data was unavailable in Germany, especially in the context of private households. Hence, the responsiveness of German households to climate protection policies was unknown. For this purpose, the Socio-Ecological Panel offers rich information on household’s energy consumption and environmental behavior. The data was gathered in four household surveys conducted in 2012, 2013, 2014 and 2015. The survey waves can be merged using the household ID. The data builds the basis for empirical analyses of households’ adaptation to climate change and the evaluation of environmental and climate policy measures. This data set comprises the information gathered in the 2012 survey wave and is labelled in German. It is available in German and English. Offline Rekrutierung für das repräsentative forsa omninet panel Selbst ausgefüllter Fragebogen Self-completed questionnaire 10.000 deutsche Haushalte Green-SÖP Green-SÖP
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Boer, Lukas;Diese Dissertation beantwortet verschiedene politikrelevante ökonomische Fragen in den Bereichen Handelspolitik, Geldpolitik, sowie Rohstoffmärkte und Energieökonomik mit Hilfe von strukturellen Vektorautoregressionsmodellen (SVAR). SVARs stellen eine effektive Möglichkeit dar, die Beziehungen zwischen verschiedenen makroökonomischen und/oder Finanzmarkt-Variablen zu modellieren und werden verwendet, um die dynamischen kausalen Effekte von ökonomischen Schocks zu schätzen. Für jede ökonomische Fragestellung wird eine Identifikationsstrategie angewandt, die auf die betrachteten Daten und ihre statistischen Eigenschaften sowie die zugrundeliegenden Annahmen über ökonomische Mechanismen zwischen den betrachteten Zeitreihen zugeschnitten ist. Im Einzelnen besteht diese Dissertation aus vier Kapiteln. In den ersten beiden Kapiteln werden die Auswirkungen von Handelspolitik auf Finanzmärkte und auf die Makroökonomie geschätzt. Das dritte Kapitel liefert einen methodischen Beitrag zur SVAR-Literatur, der in einer Anwendung zu den Effekten von Geldpolitik dargestellt wird. Das letzte Kapitel verlässt die Felder der Handels- und Geldpolitik und wendet sich Rohstoffmärkten und der Energiewirtschaft zu, stützt sich dabei aber ebenfalls auf Zeitreihenmethoden. Es analysiert die Rolle von Metallen in der Energiewende. This dissertation answers various policy relevant economic questions in the fields of trade policy, monetary policy, and commodity markets and energy economics using structural vector autoregression (SVAR) models. SVARs constitute a parsimonious way to model the relations between different macroeconomic and/or financial variables and they are used to estimate the dynamic causal effects of economic shocks. For each economic question, this dissertation applies an identification strategy that is tailored to the relevant data and its statistical properties as well as the underlying assumptions about economic mechanisms among the regarded time series. Specifically, this dissertation consists of four chapters. The first two chapters estimate the effects of trade policy on financial markets and on the macroeconomy. The third chapter makes a methodological contribution to the SVAR literature in an application to monetary policy shocks. The final chapter moves away from trade and monetary policy to commodity markets and energy economics but also relies on time series methods. It analyzes the role of metals for the clean energy transition.
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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visibility 117visibility views 117 download downloads 119 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2008Embargo end date: 20 Jun 2008 GermanyPublisher:Universität Stuttgart Authors: Kruck, Christoph;doi: 10.18419/opus-1768
Die Stromerzeugung aus Windenergie hat in den vergangenen Jahren, insbesondere unterstützt durch das Erneuerbare-Energien-Gesetz (EEG), stark zugenommen und belief sich im Jahr 2006 auf einen Anteil von rund 4,8 % an der Bruttostromerzeugung. Aufgrund des fluktuierenden Charakters der Windstromerzeugung ist die Integration und Einspeisung dieses Anteils in das Netz der öffentlichen Versorgung bereits heute mit teilweise erheblichen Problemen verbunden. Diese werden sich in Zukunft weiter verstärken, wenn der geplante Einstieg in die Offshore-Windenergienutzung wie geplant stattfindet und in den kommenden Jahren einige GW Leistung Offshore installiert werden. Grundsätzlich bieten sich zwei Lösungsansätze für die angesprochene Problematik an, die sich gegenseitig ergänzen: Zum einen können durch exaktere Prognoseverfahren die zu erwartenden Windstrommengen besser vorhergesagt und damit zugleich die Fahrpläne der konventionellen (Schatten-)Kraftwerke genauer erstellt werden. Der Bedarf an Ausgleichsenergie wird durch dieses Verfahren minimiert. Im Fall von Windflauten muss jedoch die gesamte nachgefragte Leistung durch konventionelle Kraftwerke bereitgestellt werden. Zum anderen kann durch den Einsatz von Speicherkraftwerken eine zeitliche Entkopplung von Energieangebot und –bedarf realisiert werden, indem in Zeiten hohen Windenergieangebots ein Teil des Windstroms zwischengespeichert wird und umgekehrt in Windflauten das Speicherkraftwerk die Strombereitstellung übernimmt. Mit Hilfe dieses Verfahrens erfolgt dementsprechend eine Anpassung des Angebots an die Nachfrage. Die vorliegende Arbeit konzentriert sich auf den zweiten Ansatz und entwickelt ein Simulationsmodell, mit dessen Hilfe ein Windpark-Speicher-System abgebildet und eine Vergleichmäßigung des Windstroms durch Integration verschiedener Speichertechnologen (diabates/adiabates Druckluft-Speicherkraftwerk, Pumpspeicherkraftwerk) simuliert wird. Ziel der Vergleichmäßigung ist die kontinuierliche Bereitstellung einer garantierten Leistung. Die verbleibenden Fluktuationen werden durch einen Abgleich mit der Nachfrageseite in Form der Netzlast berücksichtigt. Für unterschiedliche Systemvarianten werden sowohl die Stromgestehungskosten als auch die spezifischen CO2-Emissionen berechnet, um auf dieser Basis einen Vergleich der einzelnen Systeme zu ermöglichen. Grundlegende Parameter wie beispielsweise die energetische Speicherkapazität, die spezifischen Investitionskosten der Windenergieanlagen und des Speicherkraftwerks oder auch die Bezugskosten für Ausgleichsenergie werden anschließend in Form von Sensitivitätsanalysen und Parametervariation detailliert untersucht. Auf diese Weise können die unter konstant gesetzten Parametern gewonnenen Ergebnisse bestätigt bzw. kritisch hinterfragt werden, wobei insbesondere der Einfluss der verschiedenen Eingangsgrößen auf die Stromgestehungskosten im Detail analysiert wird. In der Folge werden vielversprechende Systemkonfigurationen unter dem Zielkriterium möglichst geringer Stromgestehungskosten identifiziert. Zudem wird geprüft, welche Anforderungen an die Kostenentwicklung speziell von Druckluft-Speicherkraftwerken zu stellen sind, um mit einem konventionellen Vergleichssystem konkurrenzfähig zu werden. Power generation from wind energy has increased significantly in the past years reaching 4.8 % of the gross power generation. This development was especially promoted by the re-newable energy law (Erneuerbares-Energien-Gesetz). The integration and feed-in of this power into the grid is associated with considerable problems as the wind power generation is characterised by its fluctuating nature. These diffi-culties will grow and accelerate if the planned wind parks in the North or Baltic Sea with some GW power are realised in the following years. In principle there are two methods of resolution for this kind of problem which com-plement one another: On the one hand it’s possible to develop better forecasting models in order to forecast the wind power generation more accurately. By this means also the operation of the conventional power plants can be planned more accurately. In the consequence the de-mand for balancing power is minimized. Nevertheless it’s inevitable to provide the total sum of demanded power in times of wind calms by conventional power plants. Concerning the second method the operation of storage facilities is involved in the system in order to realise a temporal decoupling of energy supply and demand. In times with high wind power generation the storage unit is filled and vice versa in wind calms the storage facility is able to provide power. Thus the supply side is adapted to the demand side. The following thesis focuses on the second method. A tool is developed, simulating the operation of a windpark-storage system, in order to equalise the wind power generation by the help of different storage technologies (diabatic/adiabatic compressed air energy storage, pumped hydro). The equalisation aims at the continuous supply of a guaranteed power. Re-maining fluctuations of wind power are considered by a comparison of demand and supply side, whereas the demand side is represented by the system load. The costs of generating electricity as well as the specific CO2-emissions are calculated for different configurations resulting in a comparison of the different systems. Following fun-damental parameters as the energy storage capacity, the specific investment costs of the wind power plants and the storage facility or the price of balancing power are examined in detail by the help of a sensitivity analysis. In so doing it is possible to confirm or to question the results calculated with fixed parameters. In this context especially the influence of different parame-ters on the costs of generating electricity is analysed. Finally promising system configurations with the aim of reducing the costs of generat-ing electricity are identified. Moreover the requirements concerning the reduction of invest-ment costs especially of compressed air energy storage systems in order to achieve competi-tiveness with a conventional system are examined.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Other literature type , Thesis 2014Embargo end date: 28 Mar 2014 GermanyPublisher:Universität Stuttgart Authors: Fischmann, Christian;The companies of the photovoltaic industry have experienced considerable growth in recent years. And further growth is forecasted for the coming years. By now, nearly two million single photovoltaic (PV) installations generate electricity from sunlight around the world. Thereby, the wafer-based PV products have a market share of about 80-85%. The interim shortage of silicon and the increasing cost pressure in the market give rise to ever thinner and larger wafers. Thus, the "PV Roadmap for Crystalline Silicon" of the German cell producers expects an average wafer thickness of 100 µm until 2020 and the next generation of wafer thickness in 2015. This trend brings about new challenges for the PV industry: due to the manual and automated handling in the manufacturing the silicon-based wafers are exposed to mechanical stress. If the wafers, however, become ever thinner they lose their mechanical stability and might form cracks when exposed to huge forces during the handling.These cracks, however, cause a higher breakage rate and are one of the main reasons for breakdowns of the finished modules. The damage-free handling of the very fragile silicon wafers will gain in importance due to the expected increase in the throughput. Therefore, the handling systems and components must not only handle the sensitive substrates as gently as possible but also with high speed and precision in the µm range. For this purpose, new adjusted handling components are required. This thesis aims at making a contribution to the optimal selection of handling components for the photovoltaic industry. The primary target is the development of an objective and vendor-independent evaluation procedure for grippers especially used in the cell and module manufacturing. The procedure to be developed should be suitable for cell, equipment and machine manufacturers as well as for component suppliers. Furthermore, the procedure should be applicable to identical and variable grippingprinciples. The result of the method should be the optimal decision guidance for the user and should enable an adequate and neutral classification of the tested gripper. Der enorme Ausbau der Produktionskapazitäten der Photovoltaik-Industrie in den vergangenen Jahren hat auch die Anforderungen an den Maschinen- und Anlagenbau erhöht. Die Automatisierung in der Fertigung von Solarzellen spielt dabei zur Sicherung von Qualität und Ausbeute und somit auch für die Kostenreduktion eine entscheidende Rolle. Die sich erhöhenden Materialtransportintensitäten zwischen den einzelnen Prozessschritten stellen dabei eine nicht zu vernachlässigende Herausforderung dar: Die zunehmend dünneren und fragilen Substrate bei verkürzten Zykluszeiten bringen insbesondere die Handhabung an deren physikalische Grenzen. Vor diesem Hintergrund gewinnt eine Bewertung der Leistungsfähigkeit von Handhabungskomponenten verstärkt an Bedeutung. Die Ausgangssituation zeigt, dass in der Zellfertigung aktueller Fertigungslinien insbesondere die greiferbasierte Handhabung mit Pick-and-Place-Charakter bereits parallel eingesetzt wird, um den hohen Durchsätzen gerecht zuwerden. Hierbei muss der Aufnahme- und Ablagevorgang so schnell und schädigungsarm durchgeführt werden, dass sowohl der geforderte Durchsatz, wie auch die erforderliche Qualität erreicht werden können. Durch diese Randbedingungen sind neue und erhöhte Anforderungen an die Greiferauswahl und die optimale Parametereinstellung des eingesetzten Greifers zu stellen. Die vorliegende Arbeit beschreibt ein neues, angepassten Verfahren für die Leistungsbewertung von Greifern für Silizium-Wafer. Im Vordergrund steht die Entwicklung eines objektiven und herstellerunabhängigen Bewertungsverfahrens für Greifer, die insbesonders in der Zell- und Modulfertigung eingesetzt werden. Das zu entwickelnde Verfahren kann sowohl von Zellherstellern, Anlagen- und Maschinenbauern, aber auch von Komponentenlieferanten eingesetzt werden. Das daraus resultierende Ergebnis soll eine optimale Entscheidungshilfe für den Anwender darstellen aber auch eine adäquate, neutrale Klassifizierung der getestetenGreifer ermöglichen.
Fraunhofer-ePrints arrow_drop_down Hochschulschriftenserver der Universität StuttgartDoctoral thesisData sources: Hochschulschriftenserver der Universität Stuttgartadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu2 citations 2 popularity Average influence Average impulse Average Powered by BIP!
more_vert Fraunhofer-ePrints arrow_drop_down Hochschulschriftenserver der Universität StuttgartDoctoral thesisData sources: Hochschulschriftenserver der Universität Stuttgartadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Article 2022Embargo end date: 14 Jun 2022 GermanyPublisher:TUHH Universitätsbibliothek Authors: Körner, Ina; Walk, Steffen; Lüssenhop, Phillipp;doi: 10.15480/882.4383
handle: 11420/12877
Die Energiewende einschließlich der Substitution von russischem Erdgas ist eine große Herausforderung, welche fördernde Maßnahmen in vielen Bereichen des Energiesektors verlangt. Einer dieser Bereiche ist die Erzeugung von Biomethan aus häuslichen Küchenabfällen. Diese beinhalten vorwiegend Lebensmittelabfälle. Ein großes ungenutztes Potenzial zu deren Nutzung ist vorhanden. Bürger, Abfallentsorger und Politik können beitragen, dieses zu realisieren. The energy transition, including the substitution of Russian natural gas, is a major challenge that requires supportive measures in many areas of the energy sector. One of these areas is the production of biomethane from domestic kitchen waste. This mainly includes food waste. There is a large untapped potential for its use. Citizens, waste management companies and politicians can contribute to realise this.
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visibility 203visibility views 203 download downloads 542 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2022Publisher:Zenodo Funded by:EC | FCH2RAILEC| FCH2RAILKonrad, Marcel; Pagenkopf, Johannes; J��ger, Victoria Carolin; Dittus, Holger; Dura, Georg; Garbar, Alexander; Maa��, Jan-Christoph;The project partners Duisport AG, the DLR Institute of Vehicle Concepts and the Center for Fuel Cell Technology (ZBT) have investigated the feasibility of locomotives with hydrogen fuel cell hybrid powertrains (FCH) for typical use by Duisport Rail (dpr) in the Duisburg port area and on the public rail network.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
visibility 94visibility views 94 download downloads 81 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Conference object , Article 2020 GermanyPublisher:DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany Weber, Malte; Geu Flores, Francisco; Raab, Dominik; Hefter, Harald; Jäger, Marcus; Siebler, Mario; Zietz, Dörte; Kecskeméthy, Andrés;doi: 10.17185/duepublico/71182 , 10.17185/duepublico/71215 , 10.17185/duepublico/71199 , 10.17185/duepublico/71193 , 10.17185/duepublico/71210 , 10.17185/duepublico/71202 , 10.17185/duepublico/71194 , 10.17185/duepublico/71213 , 10.17185/duepublico/71187 , 10.17185/duepublico/71181 , 10.17185/duepublico/71201 , 10.17185/duepublico/71203 , 10.17185/duepublico/71207 , 10.17185/duepublico/71214 , 10.17185/duepublico/71208 , 10.17185/duepublico/71209 , 10.17185/duepublico/71188 , 10.17185/duepublico/71180 , 10.17185/duepublico/71186 , 10.17185/duepublico/71185 , 10.17185/duepublico/71191 , 10.17185/duepublico/71196 , 10.17185/duepublico/71190 , 10.17185/duepublico/71205 , 10.17185/duepublico/71189 , 10.17185/duepublico/71198 , 10.17185/duepublico/71192 , 10.17185/duepublico/71200 , 10.17185/duepublico/71216 , 10.17185/duepublico/71217 , 10.17185/duepublico/71184 , 10.17185/duepublico/71206 , 10.17185/duepublico/71211 , 10.17185/duepublico/71195 , 10.17185/duepublico/71204 , 10.17185/duepublico/71197
doi: 10.17185/duepublico/71182 , 10.17185/duepublico/71215 , 10.17185/duepublico/71199 , 10.17185/duepublico/71193 , 10.17185/duepublico/71210 , 10.17185/duepublico/71202 , 10.17185/duepublico/71194 , 10.17185/duepublico/71213 , 10.17185/duepublico/71187 , 10.17185/duepublico/71181 , 10.17185/duepublico/71201 , 10.17185/duepublico/71203 , 10.17185/duepublico/71207 , 10.17185/duepublico/71214 , 10.17185/duepublico/71208 , 10.17185/duepublico/71209 , 10.17185/duepublico/71188 , 10.17185/duepublico/71180 , 10.17185/duepublico/71186 , 10.17185/duepublico/71185 , 10.17185/duepublico/71191 , 10.17185/duepublico/71196 , 10.17185/duepublico/71190 , 10.17185/duepublico/71205 , 10.17185/duepublico/71189 , 10.17185/duepublico/71198 , 10.17185/duepublico/71192 , 10.17185/duepublico/71200 , 10.17185/duepublico/71216 , 10.17185/duepublico/71217 , 10.17185/duepublico/71184 , 10.17185/duepublico/71206 , 10.17185/duepublico/71211 , 10.17185/duepublico/71195 , 10.17185/duepublico/71204 , 10.17185/duepublico/71197
Motiviert durch ein Anwendungsbeispiel wird die Komfortzone für mobile, kinematisch redundante Manipulatoren definiert. Die Lage und Orientierung der Basis des Manipulators und die Gelenkwinkel werden so gewählt, dass ausgesuchte Zielfunktionen minimal werden. Diese Zielfunktionen werden aus bekannten Maßen wie kartesische Geschwindigkeit, Kraft und Steifigkeit abgeleitet. Sie werden abhängig von den Parametern der Basis und den Gelenkwinkeln des Manipulators bestimmt, wobei nur ein Unterraum an möglichen Konfigurationen aufgrund der vorgegebenen Lage und Orientierung des Endeffektors (EE) für die Optimierung frei wählbar ist. Es werden im Sinne der multikriteriellen Optimierung Pareto-Fronten errechnet, welche durch vordefinierte Grenzen (z.B. minimale erreichbare Kraft oder minimale erreichbare Geschwindigkeit) begrenzt werden. Motivated by an application example, the comfort zone for mobile kinematically redundant manipulators is defined. The position and orientation of the mobile platform (=base of the manipulator) and the joint angles are selected in such a way that selected target functions are minimized. These objective functions are derived from known measures such as Cartesian velocity, force and stiffness. The objective functions are evaluated depending on the parameters of the base and the joint angles of the manipulator, whereby only a subspace of possible configurations is freely selectable for optimization due to the given position and orientation of the end effector (EE). Pareto-fronts are calculated in the sense of multi-criteria optimization, which are limited by, e.g., minimum achievable force or minimum achievable speed. IFToMM D-A-CH Konferenz, vol. 2020Sechste IFToMM D-A-CH Konferenz 2020: 27./28. Februar 2020, Campus Technik Lienz
University of Duisbu... arrow_drop_down University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71204Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71196Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71193Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71192Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71208Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71213Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71187Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71191Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71209Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71197Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71217Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BY ND SAFull-Text: https://doi.org/10.17185/duepublico/71186Data sources: Bielefeld Academic Search Engine (BASE)https://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC NDData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert University of Duisbu... arrow_drop_down University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71204Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71196Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71193Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71192Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71208Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71213Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71187Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71191Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71209Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71197Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71217Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BY ND SAFull-Text: https://doi.org/10.17185/duepublico/71186Data sources: Bielefeld Academic Search Engine (BASE)https://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC NDData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2021Publisher:Zenodo Authors: Plankenbühler, Thomas; Kolb, Sebastian; Herkendell, Katharina; Karl, Jürgen;This study summarises the scientific state of the art for the production, transportation, storage and reconversion of green hydrogen concisely and in the form of fact sheets. The aim is to provide a compact and independent overview that can serve as a guideline and basis of decision-making for future investments in the energy industry. The study discusses 47 technologies with different technology readiness levels and compares them in terms of technical and economic performance indicators. A set of uniform boundary conditions common to the energy industry allows to ensure comparability of economically relevant data (especially hydrogen production costs). In the study, technology profiles describe technologies with high technical relevance and availability as well as technologies with high technical potential but currently low availability. In each case, the state of development, operating principle, market situation as well as technical and economic risks are discussed. Additionally, a technology radar briefly presents technologies with currently unclear technical potential or technologies that are not yet available. Eine Studie im Auftrag der N-ERGIE Aktiengesellschaft
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
visibility 67visibility views 67 download downloads 67 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2005Embargo end date: 18 Mar 2005 GermanyPublisher:Universität Stuttgart Authors: Droste-Franke, Bert;doi: 10.18419/opus-1654
Ziel dieser Arbeit ist es, ausgehend von vorhandenen Ansätzen, ein geschlossenes Konzept für die Berücksichtigung von Schäden durch die Schadstoffbelastung der Umwelt als Ergänzung von Volkswirtschaftlichen Gesamtrechnungen, sogenannten Umweltökonomischen Gesamtrechnungen (UGR), abzuleiten und dieses anhand der Umweltbelastung durch Luftschadstoffe und toxische Substanzen durchzuführen. Ausgehend von der Diskussion der beiden übergeordneten Ziele für eine umweltverträgliche wirtschaftliche Entwicklung, Effizienz und Nachhaltigkeit, werden zunächst Unterziele in Form von Prioritäten aufgestellt. Aus ihnen wird dann auf der Basis vorhandener Konzepte zu Indikatoren und UGR ein System von aggregierten Indikatoren entwickelt. Zur Berechnung der Indikatoren wird die Methodik des erweiterten Wirkungspfadansatzes vorgestellt. Neben der detaillierten Diskussion von Konzentrationswerten und Gesamtschäden für 1990 und 1998 erfolgt eine Analyse des zeitlichen und räumlichen Imports und Exports von Schäden sowie der Schäden, die durch unterschiedliche wirtschaftliche Aktivitäten in Deutschland entstehen. Zusätzlich werden mit Hilfe der Indikatoren die Nachhaltigkeit der wirtschaftlichen Entwicklung und die Effizienz definierter Umweltziele beispielhaft für das Jahr 2005 untersucht. Zur Demonstration der Anwendbarkeit der berechneten Ergebnisse im Rahmen von UGR werden unter anderem beispielhaft Korrekturen der Wirtschaftsindikatoren durchgeführt, wie sie von Projekten der Europäischen Kommission und Aktivitäten der Vereinten Nationen in diesem Bereich vorgeschlagen werden. Die ermittelten gesamten Schadenskosten für die Jahre 1990 und 1998 in den EU-15 Staaten und Deutschland betragen mehrere Prozent des jeweiligen Bruttoinlandsprodukts. Die Analyse des Jahres 2005 hat gezeigt, dass die politischen Ziele für 2010 größtenteils bereits in 2005 eingehalten werden können. In einigen Ländern sind effiziente Minderungen über die Einhaltung der Ziele hinaus möglich. The objective of this thesis is to develop a consistent concept for the consideration of impacts due to the pollution of the environment in order to supplement national accounting systems in a so-called green accounting framework and to apply the concept for air pollution and the dispersion of toxic substances. Based on a discussion of the two major aims for environmentally friendly economic development, efficiency and sustainability, first, subordinate aims are formulated as priorities. These are used together with a discussion of existing concepts for indicators and environmental accounting to develop a system of aggregated indicators. For the estimation of indicator values, the extended impact pathway approach is presented. Besides a detailed discussion of the concentration levels and damages for 1990 and 1998, an analysis of temporal and spatial import and export of damages as well as the amount of damages caused by different economic activities in Germany are assessed. Furthermore, the sustainability of the economic development and the efficiency of given environmental targets are analysed applying the indicators exemplarily for the year 2005. In order to demonstrate the applicability of the results within environmental accounts, among other things exemplary corrections of economic indicators are carried out following the proposals from European Commission projects and from activities of the United Nations in this area. The estimated total damage costs occurring in 1990 and 1998 within the EU-15 and Germany result to a few percent of the respective gross domestic product. The analysis of the year 2005 showed that in some countries political targets which were originally set for 2010 can already be reached in 2005. Furthermore, in some countries efficient reductions beyond the accomplishment of the targets are possible.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022Embargo end date: 29 Mar 2022 GermanyPublisher:Technische Universität Berlin Authors: Halstenberg, Friedrich Andreas;Induziert durch Digitalisierung und Servitisierung bieten Unternehmen in zunehmendem Maße Systeme aus vernetzten mechatronischen Produkten, Software und Dienstleistungen an: sogenannte Smart Product Service Systems (Smart PSS). Zur Erfüllung der Sustainability Development Goals der Vereinten Nationen, insbesondere des Ziels 9 „nachhaltiger Konsum und Produktion“, müssen diese Systeme gemäß dem Leitbild einer Circular Economy (CE) gestaltet werden. Smart-circular PSS verfolgen nachhaltige Geschäftsmodelle und verstärken Strategien der CE durch datengetriebene Funktionen. Die Entwicklung dieser Systeme stellt Unternehmen vor große Herausforderungen. Ungeklärt ist bislang, wie Teams bei der Entwicklung von Smart-circular PSS sachgerecht methodisch unterstützt werden können. Diese Arbeit begegnet diesen Beobachtungen mit der Forschungshypothese, dass sich Systemarchitekturen von Smart-circular PSS durch geeignete Methoden des Modellbasierten Systems Engineerings (MBSE) so entwerfen lassen, dass die Systeme effektiv und effizient zu einer CE beitragen. Zu ihrer Verifizierung wurde als übergeordneter Forschungsansatz die Design Research Methodology (DRM) angewendet. Zunächst erfolgte die Forschungsklärung mithilfe von Expert*innenworkshops sowie durch eine MBSE-Reifegradanalyse in einem industriellen Unternehmen. Die hier identifizierten Handlungsfelder wurden mittels Systematischen Literaturanalysen (SLRs) abgesichert und ausgewählt. Aufbauend auf den gewonnenen Erkenntnissen wurde die Methodik zur Definition von Smart-circular PSS-Systemarchitekturen (MESSIAH) entwickelt, die Entwicklungsteams bei der Konzeptionierung von Smart-circular PSS unterstützt. Die Methode beinhaltet eine Modellierungsgenerik, eine gerichtete Methode sowie einen Baukasten zum schnellen Prototypisieren von Services. MESSIAH wurde mithilfe einer Comprehensive Descrip-tive Study anhand von fünf Studien evaluiert. Die Forschungshypothese konnte im Rahmen der Evaluierung verifiziert werden. Somit zeigt diese Arbeit erstmals Wege auf, wie Strategien der CE mithilfe des MBSE bei der Entwicklung von Smart-circular PSS Systemarchitekturen berücksichtigt werden können. MESSIAH ermöglicht die Modellierung einer interdisziplinären Systemarchitektur, die mechatronische Produkte, Software und Dienstleistungen integriert. Zur Modellierung von CE-relevanten Services wurden zwei neue prozessorientierte Modelltypen erfolgreich mit bestehenden Modellierungstechniken des MBSE kombiniert. Durch die Evaluierungsstudien konnte ein zufriedenstellender Stand der Akzeptanz und wahrgenommenen Nützlichkeit der Methodik nachgewiesen werden. Allerdings wurden Verbesserungspotentiale hinsichtlich ihrer Benutzbarkeit festgestellt. In weiterer For-schung wird es vonnöten sein, die Qualität und die Quantität der Anwendungsvalidierungen zu erhöhen. Zu diesem Zweck wird die Durchführung von Langzeitstudien sowie Anwendungen an industriellen Systemen in einem weiteren Einsatzspektrum und in weiteren Branchen empfohlen. In response to calls for digitization and servitization, businesses increasingly offer complex systems consisting of connected mechatronic products, software elements and services: so-called Smart Product-Service-Systems (Smart PSS). In order to meet the United Nations Sustainability Development Goals and in particular Goal 9 "Sustainable Consumption and Production", these systems must be compatible with the tenets of a Circular Economy (CE). The development of these systems presents businesses with major challenges. It remains unclear how engineering teams can be supported methodologically in developing Smart-circular PSS. This dissertation meets these challenges with the research hypothesis that suitable methods of Model-based Systems Engineering (MBSE) can aid in the development of Smart-circular PSS architectures, which effectively and efficiently contribute to a CE. The investigation applies Design Research Methodology (DRM) as an overarching research approach for hypothesis verification. Initially, expert workshops and an MBSE maturity analysis in an industrial enterprise served to clarify the research objective. Systematic Literature Reviews (SLRs) validated and detailed the fields of action identified. Based on the findings, the Methodology for Smart-circular PSS Architecture Definition (MESSIAH) was developed, which supports development teams in the design of Smart-circular PSS. The method includes a modeling framework, a method and a construction kit for prototyping services. MESSIAH was evaluated by means of a Comprehensive Descriptive Study based on five evaluation studies. The evaluation verified the research hypothesis. Consequently, this research explores how the development of Smart PSS with the help of MBSE can be useful to CE-strategies. MESSIAH enabled the management of system complexity by using an interdisciplinary system architecture that integrates the development of mechatronic products, software and services. In order to de-velop CE-relevant services, two new types of models were successfully integrated into existing modelling techniques of MBSE. User studies indicated a satisfactory level of user acceptance and perceived usefulness of the methodology, but also served to identify potential for improve-ment with regard to its ease of use. In further research it will be necessary to increase the quality and quantity of application validations in further application scenarios and other industry branches. For this purpose, the dissertation recommends long-term studies and applications on further industrial systems.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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Research data keyboard_double_arrow_right Dataset 2016Publisher:RWI – Leibniz Institute for Economic Research Frondel, Manuel; Vance, Colin; Andor, Mark; Kussel, Gerhard; Schmidt, Christoph M.; Osberghaus, Daniel; RWI; Forsa;Mit einem Anteil von rund 30% am Endenergieverbrauch und etwa 20% an den CO2-Emissionen haben private Haushalte in Deutschland einen großen Einfluss auf die Umwelt. Gleichzeitig sind private Haushalte ein zentraler Adressat für politische Interventionen zur Bekämpfung des Klimawandels. Vor diesem Hintergrund hat die Politik zahlreiche Maßnahmen zur Verringerung des Energiekonsums und zur Förderung regenerativer Energietechnologien ergriffen. Diese politischen Maßnahmen bedürfen einer sorgfältigen Evaluierung ihrer Effektivität und Kosteneffizienz, um kostspielige Redundanzen durch sich überlappende Instrumente zu vermeiden. Eine solche Evaluation umwelt- und energiepolitischer Maßnahmen erfordert eine umfangreiche Datenbasis. Besonders im Bereich der privaten Haushalte waren solche Daten in Deutschland bislang nicht verfügbar. Die Reagibilität deutscher Haushalte auf Maßnahmen zur Bekämpfung des Klimawandels war daher weitgehend unbekannt. Das Sozial-Ökologische Panel stellt zu diesem Zweck umfangreiche, frei verfügbare Informationen zum Energieverbrauch und Umweltverhalten privater Haushalte bereit. Die Befragung wurde in vier Wellen durchgeführt. Es liegen Daten für die Jahre 2012, 2013, 2014 und 2015 vor. Diese Daten können anhand einer ID aneinander gespielt werden. Darauf aufbauend können ökonometrische Schätzungen und Analysen verschiedener Präferenzindikatoren sowie des Anpassungsverhaltens privater Haushalte an den Klimawandel durchgeführt werden. Dieser Datensatz umfasst die Daten der Erhebung im Jahr 2012. With a share of 30% in total final energy consumption and around 20% in CO2 emissions, private households in Germany strongly affect the environment. At the same time private households are an important target group for policy interventions to fight climate change. Against this background, numerous policy measures that intend to decrease energy consumption and to support renewable energy technologies have been introduced. These policy measures call for accurate evaluation to avoid expensive redundancies due to overlapping policy instruments. The evaluation of energy and environmental policy measures requires comprehensive and reliable data. So far such data was unavailable in Germany, especially in the context of private households. Hence, the responsiveness of German households to climate protection policies was unknown. For this purpose, the Socio-Ecological Panel offers rich information on household’s energy consumption and environmental behavior. The data was gathered in four household surveys conducted in 2012, 2013, 2014 and 2015. The survey waves can be merged using the household ID. The data builds the basis for empirical analyses of households’ adaptation to climate change and the evaluation of environmental and climate policy measures. This data set comprises the information gathered in the 2012 survey wave and is labelled in German. It is available in German and English. Offline Rekrutierung für das repräsentative forsa omninet panel Selbst ausgefüllter Fragebogen Self-completed questionnaire 10.000 deutsche Haushalte Green-SÖP Green-SÖP
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022 GermanyPublisher:Humboldt-Universität zu Berlin Authors: Boer, Lukas;Diese Dissertation beantwortet verschiedene politikrelevante ökonomische Fragen in den Bereichen Handelspolitik, Geldpolitik, sowie Rohstoffmärkte und Energieökonomik mit Hilfe von strukturellen Vektorautoregressionsmodellen (SVAR). SVARs stellen eine effektive Möglichkeit dar, die Beziehungen zwischen verschiedenen makroökonomischen und/oder Finanzmarkt-Variablen zu modellieren und werden verwendet, um die dynamischen kausalen Effekte von ökonomischen Schocks zu schätzen. Für jede ökonomische Fragestellung wird eine Identifikationsstrategie angewandt, die auf die betrachteten Daten und ihre statistischen Eigenschaften sowie die zugrundeliegenden Annahmen über ökonomische Mechanismen zwischen den betrachteten Zeitreihen zugeschnitten ist. Im Einzelnen besteht diese Dissertation aus vier Kapiteln. In den ersten beiden Kapiteln werden die Auswirkungen von Handelspolitik auf Finanzmärkte und auf die Makroökonomie geschätzt. Das dritte Kapitel liefert einen methodischen Beitrag zur SVAR-Literatur, der in einer Anwendung zu den Effekten von Geldpolitik dargestellt wird. Das letzte Kapitel verlässt die Felder der Handels- und Geldpolitik und wendet sich Rohstoffmärkten und der Energiewirtschaft zu, stützt sich dabei aber ebenfalls auf Zeitreihenmethoden. Es analysiert die Rolle von Metallen in der Energiewende. This dissertation answers various policy relevant economic questions in the fields of trade policy, monetary policy, and commodity markets and energy economics using structural vector autoregression (SVAR) models. SVARs constitute a parsimonious way to model the relations between different macroeconomic and/or financial variables and they are used to estimate the dynamic causal effects of economic shocks. For each economic question, this dissertation applies an identification strategy that is tailored to the relevant data and its statistical properties as well as the underlying assumptions about economic mechanisms among the regarded time series. Specifically, this dissertation consists of four chapters. The first two chapters estimate the effects of trade policy on financial markets and on the macroeconomy. The third chapter makes a methodological contribution to the SVAR literature in an application to monetary policy shocks. The final chapter moves away from trade and monetary policy to commodity markets and energy economics but also relies on time series methods. It analyzes the role of metals for the clean energy transition.
Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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visibility 117visibility views 117 download downloads 119 Powered bymore_vert Publikationsserver d... arrow_drop_down Publikationsserver der Humboldt-Universität zu BerlinDoctoral thesis . 2022Data sources: Publikationsserver der Humboldt-Universität zu Berlinadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2008Embargo end date: 20 Jun 2008 GermanyPublisher:Universität Stuttgart Authors: Kruck, Christoph;doi: 10.18419/opus-1768
Die Stromerzeugung aus Windenergie hat in den vergangenen Jahren, insbesondere unterstützt durch das Erneuerbare-Energien-Gesetz (EEG), stark zugenommen und belief sich im Jahr 2006 auf einen Anteil von rund 4,8 % an der Bruttostromerzeugung. Aufgrund des fluktuierenden Charakters der Windstromerzeugung ist die Integration und Einspeisung dieses Anteils in das Netz der öffentlichen Versorgung bereits heute mit teilweise erheblichen Problemen verbunden. Diese werden sich in Zukunft weiter verstärken, wenn der geplante Einstieg in die Offshore-Windenergienutzung wie geplant stattfindet und in den kommenden Jahren einige GW Leistung Offshore installiert werden. Grundsätzlich bieten sich zwei Lösungsansätze für die angesprochene Problematik an, die sich gegenseitig ergänzen: Zum einen können durch exaktere Prognoseverfahren die zu erwartenden Windstrommengen besser vorhergesagt und damit zugleich die Fahrpläne der konventionellen (Schatten-)Kraftwerke genauer erstellt werden. Der Bedarf an Ausgleichsenergie wird durch dieses Verfahren minimiert. Im Fall von Windflauten muss jedoch die gesamte nachgefragte Leistung durch konventionelle Kraftwerke bereitgestellt werden. Zum anderen kann durch den Einsatz von Speicherkraftwerken eine zeitliche Entkopplung von Energieangebot und –bedarf realisiert werden, indem in Zeiten hohen Windenergieangebots ein Teil des Windstroms zwischengespeichert wird und umgekehrt in Windflauten das Speicherkraftwerk die Strombereitstellung übernimmt. Mit Hilfe dieses Verfahrens erfolgt dementsprechend eine Anpassung des Angebots an die Nachfrage. Die vorliegende Arbeit konzentriert sich auf den zweiten Ansatz und entwickelt ein Simulationsmodell, mit dessen Hilfe ein Windpark-Speicher-System abgebildet und eine Vergleichmäßigung des Windstroms durch Integration verschiedener Speichertechnologen (diabates/adiabates Druckluft-Speicherkraftwerk, Pumpspeicherkraftwerk) simuliert wird. Ziel der Vergleichmäßigung ist die kontinuierliche Bereitstellung einer garantierten Leistung. Die verbleibenden Fluktuationen werden durch einen Abgleich mit der Nachfrageseite in Form der Netzlast berücksichtigt. Für unterschiedliche Systemvarianten werden sowohl die Stromgestehungskosten als auch die spezifischen CO2-Emissionen berechnet, um auf dieser Basis einen Vergleich der einzelnen Systeme zu ermöglichen. Grundlegende Parameter wie beispielsweise die energetische Speicherkapazität, die spezifischen Investitionskosten der Windenergieanlagen und des Speicherkraftwerks oder auch die Bezugskosten für Ausgleichsenergie werden anschließend in Form von Sensitivitätsanalysen und Parametervariation detailliert untersucht. Auf diese Weise können die unter konstant gesetzten Parametern gewonnenen Ergebnisse bestätigt bzw. kritisch hinterfragt werden, wobei insbesondere der Einfluss der verschiedenen Eingangsgrößen auf die Stromgestehungskosten im Detail analysiert wird. In der Folge werden vielversprechende Systemkonfigurationen unter dem Zielkriterium möglichst geringer Stromgestehungskosten identifiziert. Zudem wird geprüft, welche Anforderungen an die Kostenentwicklung speziell von Druckluft-Speicherkraftwerken zu stellen sind, um mit einem konventionellen Vergleichssystem konkurrenzfähig zu werden. Power generation from wind energy has increased significantly in the past years reaching 4.8 % of the gross power generation. This development was especially promoted by the re-newable energy law (Erneuerbares-Energien-Gesetz). The integration and feed-in of this power into the grid is associated with considerable problems as the wind power generation is characterised by its fluctuating nature. These diffi-culties will grow and accelerate if the planned wind parks in the North or Baltic Sea with some GW power are realised in the following years. In principle there are two methods of resolution for this kind of problem which com-plement one another: On the one hand it’s possible to develop better forecasting models in order to forecast the wind power generation more accurately. By this means also the operation of the conventional power plants can be planned more accurately. In the consequence the de-mand for balancing power is minimized. Nevertheless it’s inevitable to provide the total sum of demanded power in times of wind calms by conventional power plants. Concerning the second method the operation of storage facilities is involved in the system in order to realise a temporal decoupling of energy supply and demand. In times with high wind power generation the storage unit is filled and vice versa in wind calms the storage facility is able to provide power. Thus the supply side is adapted to the demand side. The following thesis focuses on the second method. A tool is developed, simulating the operation of a windpark-storage system, in order to equalise the wind power generation by the help of different storage technologies (diabatic/adiabatic compressed air energy storage, pumped hydro). The equalisation aims at the continuous supply of a guaranteed power. Re-maining fluctuations of wind power are considered by a comparison of demand and supply side, whereas the demand side is represented by the system load. The costs of generating electricity as well as the specific CO2-emissions are calculated for different configurations resulting in a comparison of the different systems. Following fun-damental parameters as the energy storage capacity, the specific investment costs of the wind power plants and the storage facility or the price of balancing power are examined in detail by the help of a sensitivity analysis. In so doing it is possible to confirm or to question the results calculated with fixed parameters. In this context especially the influence of different parame-ters on the costs of generating electricity is analysed. Finally promising system configurations with the aim of reducing the costs of generat-ing electricity are identified. Moreover the requirements concerning the reduction of invest-ment costs especially of compressed air energy storage systems in order to achieve competi-tiveness with a conventional system are examined.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Other literature type , Thesis 2014Embargo end date: 28 Mar 2014 GermanyPublisher:Universität Stuttgart Authors: Fischmann, Christian;The companies of the photovoltaic industry have experienced considerable growth in recent years. And further growth is forecasted for the coming years. By now, nearly two million single photovoltaic (PV) installations generate electricity from sunlight around the world. Thereby, the wafer-based PV products have a market share of about 80-85%. The interim shortage of silicon and the increasing cost pressure in the market give rise to ever thinner and larger wafers. Thus, the "PV Roadmap for Crystalline Silicon" of the German cell producers expects an average wafer thickness of 100 µm until 2020 and the next generation of wafer thickness in 2015. This trend brings about new challenges for the PV industry: due to the manual and automated handling in the manufacturing the silicon-based wafers are exposed to mechanical stress. If the wafers, however, become ever thinner they lose their mechanical stability and might form cracks when exposed to huge forces during the handling.These cracks, however, cause a higher breakage rate and are one of the main reasons for breakdowns of the finished modules. The damage-free handling of the very fragile silicon wafers will gain in importance due to the expected increase in the throughput. Therefore, the handling systems and components must not only handle the sensitive substrates as gently as possible but also with high speed and precision in the µm range. For this purpose, new adjusted handling components are required. This thesis aims at making a contribution to the optimal selection of handling components for the photovoltaic industry. The primary target is the development of an objective and vendor-independent evaluation procedure for grippers especially used in the cell and module manufacturing. The procedure to be developed should be suitable for cell, equipment and machine manufacturers as well as for component suppliers. Furthermore, the procedure should be applicable to identical and variable grippingprinciples. The result of the method should be the optimal decision guidance for the user and should enable an adequate and neutral classification of the tested gripper. Der enorme Ausbau der Produktionskapazitäten der Photovoltaik-Industrie in den vergangenen Jahren hat auch die Anforderungen an den Maschinen- und Anlagenbau erhöht. Die Automatisierung in der Fertigung von Solarzellen spielt dabei zur Sicherung von Qualität und Ausbeute und somit auch für die Kostenreduktion eine entscheidende Rolle. Die sich erhöhenden Materialtransportintensitäten zwischen den einzelnen Prozessschritten stellen dabei eine nicht zu vernachlässigende Herausforderung dar: Die zunehmend dünneren und fragilen Substrate bei verkürzten Zykluszeiten bringen insbesondere die Handhabung an deren physikalische Grenzen. Vor diesem Hintergrund gewinnt eine Bewertung der Leistungsfähigkeit von Handhabungskomponenten verstärkt an Bedeutung. Die Ausgangssituation zeigt, dass in der Zellfertigung aktueller Fertigungslinien insbesondere die greiferbasierte Handhabung mit Pick-and-Place-Charakter bereits parallel eingesetzt wird, um den hohen Durchsätzen gerecht zuwerden. Hierbei muss der Aufnahme- und Ablagevorgang so schnell und schädigungsarm durchgeführt werden, dass sowohl der geforderte Durchsatz, wie auch die erforderliche Qualität erreicht werden können. Durch diese Randbedingungen sind neue und erhöhte Anforderungen an die Greiferauswahl und die optimale Parametereinstellung des eingesetzten Greifers zu stellen. Die vorliegende Arbeit beschreibt ein neues, angepassten Verfahren für die Leistungsbewertung von Greifern für Silizium-Wafer. Im Vordergrund steht die Entwicklung eines objektiven und herstellerunabhängigen Bewertungsverfahrens für Greifer, die insbesonders in der Zell- und Modulfertigung eingesetzt werden. Das zu entwickelnde Verfahren kann sowohl von Zellherstellern, Anlagen- und Maschinenbauern, aber auch von Komponentenlieferanten eingesetzt werden. Das daraus resultierende Ergebnis soll eine optimale Entscheidungshilfe für den Anwender darstellen aber auch eine adäquate, neutrale Klassifizierung der getestetenGreifer ermöglichen.
Fraunhofer-ePrints arrow_drop_down Hochschulschriftenserver der Universität StuttgartDoctoral thesisData sources: Hochschulschriftenserver der Universität Stuttgartadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu2 citations 2 popularity Average influence Average impulse Average Powered by BIP!
more_vert Fraunhofer-ePrints arrow_drop_down Hochschulschriftenserver der Universität StuttgartDoctoral thesisData sources: Hochschulschriftenserver der Universität Stuttgartadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Article 2022Embargo end date: 14 Jun 2022 GermanyPublisher:TUHH Universitätsbibliothek Authors: Körner, Ina; Walk, Steffen; Lüssenhop, Phillipp;doi: 10.15480/882.4383
handle: 11420/12877
Die Energiewende einschließlich der Substitution von russischem Erdgas ist eine große Herausforderung, welche fördernde Maßnahmen in vielen Bereichen des Energiesektors verlangt. Einer dieser Bereiche ist die Erzeugung von Biomethan aus häuslichen Küchenabfällen. Diese beinhalten vorwiegend Lebensmittelabfälle. Ein großes ungenutztes Potenzial zu deren Nutzung ist vorhanden. Bürger, Abfallentsorger und Politik können beitragen, dieses zu realisieren. The energy transition, including the substitution of Russian natural gas, is a major challenge that requires supportive measures in many areas of the energy sector. One of these areas is the production of biomethane from domestic kitchen waste. This mainly includes food waste. There is a large untapped potential for its use. Citizens, waste management companies and politicians can contribute to realise this.
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visibility 203visibility views 203 download downloads 542 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2022Publisher:Zenodo Funded by:EC | FCH2RAILEC| FCH2RAILKonrad, Marcel; Pagenkopf, Johannes; J��ger, Victoria Carolin; Dittus, Holger; Dura, Georg; Garbar, Alexander; Maa��, Jan-Christoph;The project partners Duisport AG, the DLR Institute of Vehicle Concepts and the Center for Fuel Cell Technology (ZBT) have investigated the feasibility of locomotives with hydrogen fuel cell hybrid powertrains (FCH) for typical use by Duisport Rail (dpr) in the Duisburg port area and on the public rail network.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 1 citations 1 popularity Average influence Average impulse Average Powered by BIP!
visibility 94visibility views 94 download downloads 81 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Conference object , Article 2020 GermanyPublisher:DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany Weber, Malte; Geu Flores, Francisco; Raab, Dominik; Hefter, Harald; Jäger, Marcus; Siebler, Mario; Zietz, Dörte; Kecskeméthy, Andrés;doi: 10.17185/duepublico/71182 , 10.17185/duepublico/71215 , 10.17185/duepublico/71199 , 10.17185/duepublico/71193 , 10.17185/duepublico/71210 , 10.17185/duepublico/71202 , 10.17185/duepublico/71194 , 10.17185/duepublico/71213 , 10.17185/duepublico/71187 , 10.17185/duepublico/71181 , 10.17185/duepublico/71201 , 10.17185/duepublico/71203 , 10.17185/duepublico/71207 , 10.17185/duepublico/71214 , 10.17185/duepublico/71208 , 10.17185/duepublico/71209 , 10.17185/duepublico/71188 , 10.17185/duepublico/71180 , 10.17185/duepublico/71186 , 10.17185/duepublico/71185 , 10.17185/duepublico/71191 , 10.17185/duepublico/71196 , 10.17185/duepublico/71190 , 10.17185/duepublico/71205 , 10.17185/duepublico/71189 , 10.17185/duepublico/71198 , 10.17185/duepublico/71192 , 10.17185/duepublico/71200 , 10.17185/duepublico/71216 , 10.17185/duepublico/71217 , 10.17185/duepublico/71184 , 10.17185/duepublico/71206 , 10.17185/duepublico/71211 , 10.17185/duepublico/71195 , 10.17185/duepublico/71204 , 10.17185/duepublico/71197
doi: 10.17185/duepublico/71182 , 10.17185/duepublico/71215 , 10.17185/duepublico/71199 , 10.17185/duepublico/71193 , 10.17185/duepublico/71210 , 10.17185/duepublico/71202 , 10.17185/duepublico/71194 , 10.17185/duepublico/71213 , 10.17185/duepublico/71187 , 10.17185/duepublico/71181 , 10.17185/duepublico/71201 , 10.17185/duepublico/71203 , 10.17185/duepublico/71207 , 10.17185/duepublico/71214 , 10.17185/duepublico/71208 , 10.17185/duepublico/71209 , 10.17185/duepublico/71188 , 10.17185/duepublico/71180 , 10.17185/duepublico/71186 , 10.17185/duepublico/71185 , 10.17185/duepublico/71191 , 10.17185/duepublico/71196 , 10.17185/duepublico/71190 , 10.17185/duepublico/71205 , 10.17185/duepublico/71189 , 10.17185/duepublico/71198 , 10.17185/duepublico/71192 , 10.17185/duepublico/71200 , 10.17185/duepublico/71216 , 10.17185/duepublico/71217 , 10.17185/duepublico/71184 , 10.17185/duepublico/71206 , 10.17185/duepublico/71211 , 10.17185/duepublico/71195 , 10.17185/duepublico/71204 , 10.17185/duepublico/71197
Motiviert durch ein Anwendungsbeispiel wird die Komfortzone für mobile, kinematisch redundante Manipulatoren definiert. Die Lage und Orientierung der Basis des Manipulators und die Gelenkwinkel werden so gewählt, dass ausgesuchte Zielfunktionen minimal werden. Diese Zielfunktionen werden aus bekannten Maßen wie kartesische Geschwindigkeit, Kraft und Steifigkeit abgeleitet. Sie werden abhängig von den Parametern der Basis und den Gelenkwinkeln des Manipulators bestimmt, wobei nur ein Unterraum an möglichen Konfigurationen aufgrund der vorgegebenen Lage und Orientierung des Endeffektors (EE) für die Optimierung frei wählbar ist. Es werden im Sinne der multikriteriellen Optimierung Pareto-Fronten errechnet, welche durch vordefinierte Grenzen (z.B. minimale erreichbare Kraft oder minimale erreichbare Geschwindigkeit) begrenzt werden. Motivated by an application example, the comfort zone for mobile kinematically redundant manipulators is defined. The position and orientation of the mobile platform (=base of the manipulator) and the joint angles are selected in such a way that selected target functions are minimized. These objective functions are derived from known measures such as Cartesian velocity, force and stiffness. The objective functions are evaluated depending on the parameters of the base and the joint angles of the manipulator, whereby only a subspace of possible configurations is freely selectable for optimization due to the given position and orientation of the end effector (EE). Pareto-fronts are calculated in the sense of multi-criteria optimization, which are limited by, e.g., minimum achievable force or minimum achievable speed. IFToMM D-A-CH Konferenz, vol. 2020Sechste IFToMM D-A-CH Konferenz 2020: 27./28. Februar 2020, Campus Technik Lienz
University of Duisbu... arrow_drop_down University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71204Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71196Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71193Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71192Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71208Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71213Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71187Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71191Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71209Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71197Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71217Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BY ND SAFull-Text: https://doi.org/10.17185/duepublico/71186Data sources: Bielefeld Academic Search Engine (BASE)https://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC NDData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert University of Duisbu... arrow_drop_down University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71204Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71196Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71193Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71192Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71208Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71213Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71187Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71191Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71209Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020Full-Text: https://doi.org/10.17185/duepublico/71197Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BYFull-Text: https://doi.org/10.17185/duepublico/71217Data sources: Bielefeld Academic Search Engine (BASE)University of Duisburg-Essen: DuEPublico2 (Duisburg Essen Publications online)Article . 2020License: CC BY ND SAFull-Text: https://doi.org/10.17185/duepublico/71186Data sources: Bielefeld Academic Search Engine (BASE)https://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC SAData sources: Datacitehttps://dx.doi.org/10.17185/du...Other literature type . 2020License: CC BY NC NDData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2021Publisher:Zenodo Authors: Plankenbühler, Thomas; Kolb, Sebastian; Herkendell, Katharina; Karl, Jürgen;This study summarises the scientific state of the art for the production, transportation, storage and reconversion of green hydrogen concisely and in the form of fact sheets. The aim is to provide a compact and independent overview that can serve as a guideline and basis of decision-making for future investments in the energy industry. The study discusses 47 technologies with different technology readiness levels and compares them in terms of technical and economic performance indicators. A set of uniform boundary conditions common to the energy industry allows to ensure comparability of economically relevant data (especially hydrogen production costs). In the study, technology profiles describe technologies with high technical relevance and availability as well as technologies with high technical potential but currently low availability. In each case, the state of development, operating principle, market situation as well as technical and economic risks are discussed. Additionally, a technology radar briefly presents technologies with currently unclear technical potential or technologies that are not yet available. Eine Studie im Auftrag der N-ERGIE Aktiengesellschaft
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
visibility 67visibility views 67 download downloads 67 Powered bymore_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2005Embargo end date: 18 Mar 2005 GermanyPublisher:Universität Stuttgart Authors: Droste-Franke, Bert;doi: 10.18419/opus-1654
Ziel dieser Arbeit ist es, ausgehend von vorhandenen Ansätzen, ein geschlossenes Konzept für die Berücksichtigung von Schäden durch die Schadstoffbelastung der Umwelt als Ergänzung von Volkswirtschaftlichen Gesamtrechnungen, sogenannten Umweltökonomischen Gesamtrechnungen (UGR), abzuleiten und dieses anhand der Umweltbelastung durch Luftschadstoffe und toxische Substanzen durchzuführen. Ausgehend von der Diskussion der beiden übergeordneten Ziele für eine umweltverträgliche wirtschaftliche Entwicklung, Effizienz und Nachhaltigkeit, werden zunächst Unterziele in Form von Prioritäten aufgestellt. Aus ihnen wird dann auf der Basis vorhandener Konzepte zu Indikatoren und UGR ein System von aggregierten Indikatoren entwickelt. Zur Berechnung der Indikatoren wird die Methodik des erweiterten Wirkungspfadansatzes vorgestellt. Neben der detaillierten Diskussion von Konzentrationswerten und Gesamtschäden für 1990 und 1998 erfolgt eine Analyse des zeitlichen und räumlichen Imports und Exports von Schäden sowie der Schäden, die durch unterschiedliche wirtschaftliche Aktivitäten in Deutschland entstehen. Zusätzlich werden mit Hilfe der Indikatoren die Nachhaltigkeit der wirtschaftlichen Entwicklung und die Effizienz definierter Umweltziele beispielhaft für das Jahr 2005 untersucht. Zur Demonstration der Anwendbarkeit der berechneten Ergebnisse im Rahmen von UGR werden unter anderem beispielhaft Korrekturen der Wirtschaftsindikatoren durchgeführt, wie sie von Projekten der Europäischen Kommission und Aktivitäten der Vereinten Nationen in diesem Bereich vorgeschlagen werden. Die ermittelten gesamten Schadenskosten für die Jahre 1990 und 1998 in den EU-15 Staaten und Deutschland betragen mehrere Prozent des jeweiligen Bruttoinlandsprodukts. Die Analyse des Jahres 2005 hat gezeigt, dass die politischen Ziele für 2010 größtenteils bereits in 2005 eingehalten werden können. In einigen Ländern sind effiziente Minderungen über die Einhaltung der Ziele hinaus möglich. The objective of this thesis is to develop a consistent concept for the consideration of impacts due to the pollution of the environment in order to supplement national accounting systems in a so-called green accounting framework and to apply the concept for air pollution and the dispersion of toxic substances. Based on a discussion of the two major aims for environmentally friendly economic development, efficiency and sustainability, first, subordinate aims are formulated as priorities. These are used together with a discussion of existing concepts for indicators and environmental accounting to develop a system of aggregated indicators. For the estimation of indicator values, the extended impact pathway approach is presented. Besides a detailed discussion of the concentration levels and damages for 1990 and 1998, an analysis of temporal and spatial import and export of damages as well as the amount of damages caused by different economic activities in Germany are assessed. Furthermore, the sustainability of the economic development and the efficiency of given environmental targets are analysed applying the indicators exemplarily for the year 2005. In order to demonstrate the applicability of the results within environmental accounts, among other things exemplary corrections of economic indicators are carried out following the proposals from European Commission projects and from activities of the United Nations in this area. The estimated total damage costs occurring in 1990 and 1998 within the EU-15 and Germany result to a few percent of the respective gross domestic product. The analysis of the year 2005 showed that in some countries political targets which were originally set for 2010 can already be reached in 2005. Furthermore, in some countries efficient reductions beyond the accomplishment of the targets are possible.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2022Embargo end date: 29 Mar 2022 GermanyPublisher:Technische Universität Berlin Authors: Halstenberg, Friedrich Andreas;Induziert durch Digitalisierung und Servitisierung bieten Unternehmen in zunehmendem Maße Systeme aus vernetzten mechatronischen Produkten, Software und Dienstleistungen an: sogenannte Smart Product Service Systems (Smart PSS). Zur Erfüllung der Sustainability Development Goals der Vereinten Nationen, insbesondere des Ziels 9 „nachhaltiger Konsum und Produktion“, müssen diese Systeme gemäß dem Leitbild einer Circular Economy (CE) gestaltet werden. Smart-circular PSS verfolgen nachhaltige Geschäftsmodelle und verstärken Strategien der CE durch datengetriebene Funktionen. Die Entwicklung dieser Systeme stellt Unternehmen vor große Herausforderungen. Ungeklärt ist bislang, wie Teams bei der Entwicklung von Smart-circular PSS sachgerecht methodisch unterstützt werden können. Diese Arbeit begegnet diesen Beobachtungen mit der Forschungshypothese, dass sich Systemarchitekturen von Smart-circular PSS durch geeignete Methoden des Modellbasierten Systems Engineerings (MBSE) so entwerfen lassen, dass die Systeme effektiv und effizient zu einer CE beitragen. Zu ihrer Verifizierung wurde als übergeordneter Forschungsansatz die Design Research Methodology (DRM) angewendet. Zunächst erfolgte die Forschungsklärung mithilfe von Expert*innenworkshops sowie durch eine MBSE-Reifegradanalyse in einem industriellen Unternehmen. Die hier identifizierten Handlungsfelder wurden mittels Systematischen Literaturanalysen (SLRs) abgesichert und ausgewählt. Aufbauend auf den gewonnenen Erkenntnissen wurde die Methodik zur Definition von Smart-circular PSS-Systemarchitekturen (MESSIAH) entwickelt, die Entwicklungsteams bei der Konzeptionierung von Smart-circular PSS unterstützt. Die Methode beinhaltet eine Modellierungsgenerik, eine gerichtete Methode sowie einen Baukasten zum schnellen Prototypisieren von Services. MESSIAH wurde mithilfe einer Comprehensive Descrip-tive Study anhand von fünf Studien evaluiert. Die Forschungshypothese konnte im Rahmen der Evaluierung verifiziert werden. Somit zeigt diese Arbeit erstmals Wege auf, wie Strategien der CE mithilfe des MBSE bei der Entwicklung von Smart-circular PSS Systemarchitekturen berücksichtigt werden können. MESSIAH ermöglicht die Modellierung einer interdisziplinären Systemarchitektur, die mechatronische Produkte, Software und Dienstleistungen integriert. Zur Modellierung von CE-relevanten Services wurden zwei neue prozessorientierte Modelltypen erfolgreich mit bestehenden Modellierungstechniken des MBSE kombiniert. Durch die Evaluierungsstudien konnte ein zufriedenstellender Stand der Akzeptanz und wahrgenommenen Nützlichkeit der Methodik nachgewiesen werden. Allerdings wurden Verbesserungspotentiale hinsichtlich ihrer Benutzbarkeit festgestellt. In weiterer For-schung wird es vonnöten sein, die Qualität und die Quantität der Anwendungsvalidierungen zu erhöhen. Zu diesem Zweck wird die Durchführung von Langzeitstudien sowie Anwendungen an industriellen Systemen in einem weiteren Einsatzspektrum und in weiteren Branchen empfohlen. In response to calls for digitization and servitization, businesses increasingly offer complex systems consisting of connected mechatronic products, software elements and services: so-called Smart Product-Service-Systems (Smart PSS). In order to meet the United Nations Sustainability Development Goals and in particular Goal 9 "Sustainable Consumption and Production", these systems must be compatible with the tenets of a Circular Economy (CE). The development of these systems presents businesses with major challenges. It remains unclear how engineering teams can be supported methodologically in developing Smart-circular PSS. This dissertation meets these challenges with the research hypothesis that suitable methods of Model-based Systems Engineering (MBSE) can aid in the development of Smart-circular PSS architectures, which effectively and efficiently contribute to a CE. The investigation applies Design Research Methodology (DRM) as an overarching research approach for hypothesis verification. Initially, expert workshops and an MBSE maturity analysis in an industrial enterprise served to clarify the research objective. Systematic Literature Reviews (SLRs) validated and detailed the fields of action identified. Based on the findings, the Methodology for Smart-circular PSS Architecture Definition (MESSIAH) was developed, which supports development teams in the design of Smart-circular PSS. The method includes a modeling framework, a method and a construction kit for prototyping services. MESSIAH was evaluated by means of a Comprehensive Descriptive Study based on five evaluation studies. The evaluation verified the research hypothesis. Consequently, this research explores how the development of Smart PSS with the help of MBSE can be useful to CE-strategies. MESSIAH enabled the management of system complexity by using an interdisciplinary system architecture that integrates the development of mechatronic products, software and services. In order to de-velop CE-relevant services, two new types of models were successfully integrated into existing modelling techniques of MBSE. User studies indicated a satisfactory level of user acceptance and perceived usefulness of the methodology, but also served to identify potential for improve-ment with regard to its ease of use. In further research it will be necessary to increase the quality and quantity of application validations in further application scenarios and other industry branches. For this purpose, the dissertation recommends long-term studies and applications on further industrial systems.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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