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description Publicationkeyboard_double_arrow_right Article , Journal 2015 ItalyPublisher:Elsevier BV Authors: GUANDALINI, GIULIO; CAMPANARI, STEFANO; ROMANO, MATTEO CARMELO;handle: 11311/968303
Limited dispatchability of wind parks and unexpected grid power injections create unbalances between the generated electric power and the actual required power that has to be reduced for proper operation of the electrical grid. The increasing amount of renewable energy sources stresses this problem in several countries, where the responses in terms of reinforcement of transmission lines and ancillary services are not sufficiently fast or effective. In this study, we analyze the potential of a grid balancing system based on different combinations of traditional gas turbine based power plants with innovative ‘power-to-gas’ plants. Power-to-gas is a promising solution to balance the electric grid, based on water electrolysis, which can effectively contribute to reducing the uncertainty of dispatch plans. According to this system, the excess power produced by renewables is converted into hydrogen, which can be then injected into the natural gas grid. Different economic scenarios are assessed in this work, leading to a set of optimal sizes of the proposed system, using a statistical approach in order to estimate wind farm productivity and forecasting errors, as well as each component load conditions. Economic parameters, equivalent operating hours, CO2 emissions and lost wind energy are the main performances indexes considered in this work to compare gas turbine and electrolysis balancing systems. From an economic point of view, hybrid systems including both balancing technologies generally lead to the best performances. The scenario which leads to the highest power-to-gas capacity (with installed electrolysis power of about 6% of wind park nominal power) is determined coupling a mid-term perspective of reduction in investment costs with favorable energy market conditions or with incentives (“green-gas” or carbon taxes). In such conditions, an equivalence between the two technologies in terms of optimum installed power can be reached at an electricity-to-natural gas cost ratio between 1.8 and 2. In most interesting scenarios, the P2G system brings about a lower total wind electricity injected in the grid, due to wind-to-gas energy conversion, while it allows reducing energy losses due to grid congestion and curtailment of the wind park; however, the additional CO2 emissions due to gas turbines operation and due to the reduced electricity production tend to offset or to limit the positive effect of the carbon-free gas production.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2015.02.055&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 285 citations 285 popularity Top 0.1% influence Top 1% impulse Top 1% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2015.02.055&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2021 ItalyPublisher:Elsevier BV Authors: Crespi E.; Colbertaldo P.; Guandalini G.; Campanari S.;handle: 11311/1166962
Abstract The increasing penetration of intermittent renewable sources, fostering power sector decarbonization, calls for the adoption of energy storage systems as an essential mean to improve local electricity exploitation, reducing the impact of distributed power generation on the electric grid. This work compares the use of hydrogen-based Power-to-Power systems, battery systems and hybrid hydrogen-battery systems to supply a constant 1 MWel load with electricity locally generated by a photovoltaic plant. A techno-economic optimization model is set up that optimizes the size and annual operation of the system components (photovoltaic field, electrolyzer, hydrogen storage tanks, fuel cell and batteries) with the objective of minimizing the annual average cost of electricity, while guaranteeing an imposed share of local renewable self-generation. Results show that, with the present values of investment costs and grid electricity prices, the installation of an energy storage system is not economically attractive by itself, whereas the installation of PV panels is beneficial in terms of costs, so that the baseline optimal solution consists of a 4.2 MWp solar field capable to self-generate 33% of the load annually. For imposed shares of self-generation above 40%, decoupling generation and consumption becomes necessary. The use of batteries is slightly less expensive than the use of hydrogen storage systems up to a 92% self-generation rate. Above this threshold, seasonal storage becomes predominant and hybrid storage becomes cheaper than batteries. The sale of excess electricity is always important to support the plant economics, and a sale price reduction sensibly impacts the results. Hydrogen storage becomes more competitive when the need for medium and long terms energy shift increases, e.g. in case of having a cap on the available PV capacity.
RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Hydrogen EnergyArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2020.09.152&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu37 citations 37 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Hydrogen EnergyArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2020.09.152&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2018 ItalyPublisher:Elsevier BV Authors: Colbertaldo, Paolo; Guandalini, Giulio; Campanari, Stefano;handle: 11311/1069167
Abstract This work analyses future energy scenarios at country scale, focusing on the interaction between power and transport sectors, where Power-to-Gas is expected to play a key role. A multi-node model is developed to represent the integrated energy system, including additional electrical load from plug-in electric vehicles, energy storage, and hydrogen production from excess electricity for fuel cell vehicles. Electricity supply-demand balance is solved hourly, while liquid and gaseous fuels for mobility are accounted for cumulatively over the year. The Italian system is investigated, considering different evolution scenarios up to 2030 and 2050. The simulations yield a maximum 57% share of renewable sources in the electricity mix in 2050, while biomass could account for a further 5%. Results show that the use of Power-to-Gas increases the overall share of renewable sources across the sectors. High coverage of hydrogen mobility demand by clean production (about 81%) is achieved in presence of a large installation of renewables and a substantial introduction of fuel cell vehicles. However, greenhouse gas emissions reduction does not attain the ambitious long-term targets. In the best scenario, transport approaches the 60% cut, while power sector achieves only half of the desired 95% variation, thus calling for additional measures.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.energy.2018.04.089&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 88 citations 88 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.energy.2018.04.089&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2007 ItalyPublisher:Elsevier BV S. Bedogni; CAMPANARI, STEFANO; IORA, PAOLO GIULIO; L. Montelatici; SILVA, PAOLO;handle: 11379/112 , 11311/552547
Abstract This work presents an experimental analysis of circular-planar type intermediate-temperature solid oxide fuel cells, and the interpretation of the experimental results with a finite volume model. The model is developed to generate cell mass and energy balances and internal cell profiles for all the relevant thermodynamic or electrochemical variables, and includes a fluid-dynamic analysis focusing on the investigation of the cell internal flow conditions. Experiments have been carried out at the Edison laboratories, where several single cells fuelled with hydrogen were subject to polarization curve analysis and internal temperature measurements. The model is calibrated and validated over experimental voltage–current data, provides information on cell internal losses and demonstrates the capacity of predicting the single cell behavior and overall energy balances when changing significantly the cell operating conditions. The discussion also addresses the effects of diffusion losses appearing in the experiments carried out at high current output and low fuel hydrogen content.
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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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2007.07.014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu32 citations 32 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2007.07.014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2019 ItalyPublisher:Elsevier BV Luca Mastropasqua; Lorenzo Pierangelo; Maurizio Spinelli; Matteo C. Romano; Stefano Campanari; Stefano Consonni;handle: 11311/1111763
Abstract This study explores the use of state-of-the-art, high temperature Molten Carbonate Fuel Cells (MCFC) fed with natural gas as retrofit post-combustion CO2 capture technology for an existing integrated steel mill. Quantitative estimates of performances and costs are generated for a reference steelwork producing 4 Mton y−1 of hot rolled coil, where the fuel cell abates three major sources of CO2 emissions: i) power plant; ii) coke oven; iii) hot stoves. The MCFC-based system that removes CO2 and generates power includes a gas processing unit which produces nearly-pure CO2 for permanent storage (or-utilization) and hydrogen that can be conveniently used in the steel mill. The fuel cell operating conditions are adapted to the specific industrial application and its performances are predicted by an in-house process simulation tool. The techno-economic analysis finds conditions complying with the operating constraints of the fuel cell stacks while reducing direct CO2 emissions of the steel mill by more than 70% and achieving apparently interesting economic returns. In addition, the CO2 capture system generates large amounts of carbon-free electricity (up to 545 MWel) and hydrogen (up to 346 MWLHV) yielding a first law efficiency of approximately 60%. The synergistic production of decarbonized steel, hydrogen and electricity is key to the attractiveness the MCFC-CCS configuration proposed here: after assuming reasonable values for the “by-product” hydrogen and electricity and accounting for the CO2 avoidance they bring about, the estimated overall cost of CO2 avoided (CCA) ranges between 25 and-65 $ tonCO2−1.
RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Greenhouse Gas ControlArticle . 2019 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijggc.2019.05.033&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu39 citations 39 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Greenhouse Gas ControlArticle . 2019 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijggc.2019.05.033&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 ItalyPublisher:Elsevier BV Authors: Crespi, E.; Colbertaldo, P.; Guandalini, G.; Campanari, S.;handle: 11311/1221409
RE.PUBLIC@POLIMI Res... arrow_drop_down Journal of Energy StorageArticle . 2022 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.est.2022.105613&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu16 citations 16 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down Journal of Energy StorageArticle . 2022 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.est.2022.105613&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2020Publisher:Elsevier BV Authors: Luca Mastropasqua; Andrea Pegorin; Stefano Campanari;Abstract Oil refining sector contributes for 4% of the overall anthropogenic CO2 emissions and it is recognised as an important industrial sector for the implementation of carbon capture and storage technologies. This work focuses on the investigation of oil refinery emission sources and the specific development of a multi-energy SOFC-based system for the combined production of hydrogen, electricity and process steam with carbon capture. The system is sized to satisfy the fraction of refinery hydrogen demand, i.e., 22,500 Nm3 h−1 – conventionally covered by natural gas fired steam methane reformers. Four plant layouts are designed for this purpose featuring different levels of integration with the refinery process. The thermodynamic analysis shows the potentialities in terms of primary energy savings compared to separate production with conventional technologies. CO2 emissions can be reduced by 85% compared to reference cases, reaching zero or negative overall emissions due to the exported steam and electricity. A preliminary economic analysis is performed to establish the value of the levelised cost of hydrogen, to define its dependence on the carbon tax value and compare its value with difference hydrogen production technologies. This works shows the possibility of producing hydrogen at 3.3 € kg−1 in a current cost scenario.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2019.227461&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu12 citations 12 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2019.227461&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 ItalyPublisher:Elsevier BV Authors: SPINELLI, MAURIZIO; ROMANO, MATTEO CARMELO; CONSONNI, STEFANO; CAMPANARI, STEFANO; +2 AuthorsSPINELLI, MAURIZIO; ROMANO, MATTEO CARMELO; CONSONNI, STEFANO; CAMPANARI, STEFANO; Marchi, Maurizio; Cinti, Giovanni;handle: 11311/966086
AbstractCement production process features intrinsically large CO2 emission due to the decomposition of limestone by calcination reaction and to fuel combustion, necessary for sustaining the endothermic calcination process and the formation of clinker. Conventional approaches to CO2 emission reduction in cement plants are based on post-combustion capture with chemical solvents, requiring a substantial energy consumption for regeneration, or oxycombustion in the cement kiln, involving a deep redesign of the plant. The aim of this work is investigating the application of Molten Carbonate Fuel Cells in cement plants for CO2 capture from the plant exhaust gases, using the fuel cells as active CO2 concentrators of combustion flue gases and eventually obtaining a purified CO2 stream through a cryogenic process. A novel configuration with MCFCs added along the exhaust line has been assessed by means of process simulations. The results show a remarkable potential in terms of equivalent avoided CO2 emissions (exceeding 1000g/kWh), high share of CO2 avoided (up to about 70%) and low energy penalties.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.egypro.2014.11.687&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 25 citations 25 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
visibility 2visibility views 2 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.egypro.2014.11.687&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2021 ItalyPublisher:Elsevier BV Authors: Scaccabarozzi R.; Gatti M.; Campanari S.; Martelli E.;handle: 11311/1202561
Abstract This paper presents a new hybrid cycle based on the integration between a pressurized solid oxide fuel cell (SOFC) and a semi-closed regenerative intercooled Brayton cycle using a CO2-rich stream as the working fluid. Nearly pure oxygen is used as oxidant for both the Brayton cycle combustor and the fuel cell. The cycle is conceived to produce electricity while capturing 100% of the produced CO2 using natural gas or other fuels suitable for SOFC fuel cells. If the maximum cycle pressure is above the CO2 critical pressure, the semi-closed Brayton cycle becomes a supercritical CO2 cycle with the related efficiency advantages. In this work, the cycle is modelled with Aspen Plus and its design variables are optimized to find the maximum electric efficiency using an ad-hoc optimization approach. In the case study assessed (natural gas thermal input of 500 MW), the optimized cycle, working at 40 MPa with a cooled expander, achieves an outstandingly high efficiency of 75.7% (LHV basis) with CO2 capture. The sensitivity analysis shows that similar efficiency values can be achieved even with less challenging operating conditions for both the Brayton cycle and fuel cell (maximum cycle pressure of 27.5 bar, uncooled turbine and fuel utilization factor of the fuel cell equal to 0.75).
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2021.116711&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu33 citations 33 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2021.116711&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type , Contribution for newspaper or weekly magazine 2009 United Kingdom, ItalyPublisher:ASMEDC Authors: ROMANO, MATTEO CARMELO; CAMPANARI, STEFANO; SPALLINA, VINCENZO; LOZZA, GIOVANNI;doi: 10.1115/gt2009-59551
handle: 11311/563259
Application of large scale high temperature fuel cells on syngas fuel produced from coal would be a turning point in the power generation sector, dramatically improving the efficiency and the environmental performance of coal-fired power plants. The purpose of this study is the assessment of a system constituted by a SOFC-based hybrid cycle integrated with a coal gasification process. In this system, syngas produced in a high efficiency, dry feed, oxygen blown, entrained flow Shell gasifier is cooled, depurated from particulate and sulfur compounds and reheated; the clean syngas feeds a pressurized SOFC together with high pressure air generated by the compressor of a gas turbine. After combustion of unconverted syngas, fuel cell exhausts are expanded and cooled, providing heat to a bottoming steam cycle for an efficient energy recovery. A high integration between gasification and power islands is necessary in order to obtain an elevated efficiency: the heat recovery system from syngas cooling is carefully arranged to provide thermal power for clean syngas reheating, air preheating and steam generation. The paper presents a preliminary analysis of literature results and a discussion of the thermodynamic implications arising from the use of different primary fuels in a fuel cell-gas turbine cycle. Then the work presents a detailed thermodynamic analysis of the proposed IGFC layout, assessing the effect of SOFC operating pressure on power balance and net plant efficiency. A sensitivity analysis on the variation of fuel and air utilization in the fuel cell is also performed. Results show that the present innovative SOFC-based power system may achieve an efficiency gain of 7–11 percentage points, with respect to an advanced IGCC based on state of the art technology.
The University of Ma... arrow_drop_down The University of Manchester - Institutional RepositoryContribution for newspaper or weekly magazine . 2009Data sources: The University of Manchester - Institutional RepositoryRE.PUBLIC@POLIMI Research Publications at Politecnico di MilanoConference object . 2009add 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1115/gt2009-59551&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu12 citations 12 popularity Average influence Top 10% impulse Top 10% Powered by BIP!
more_vert The University of Ma... arrow_drop_down The University of Manchester - Institutional RepositoryContribution for newspaper or weekly magazine . 2009Data sources: The University of Manchester - Institutional RepositoryRE.PUBLIC@POLIMI Research Publications at Politecnico di MilanoConference object . 2009add 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1115/gt2009-59551&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article , Journal 2015 ItalyPublisher:Elsevier BV Authors: GUANDALINI, GIULIO; CAMPANARI, STEFANO; ROMANO, MATTEO CARMELO;handle: 11311/968303
Limited dispatchability of wind parks and unexpected grid power injections create unbalances between the generated electric power and the actual required power that has to be reduced for proper operation of the electrical grid. The increasing amount of renewable energy sources stresses this problem in several countries, where the responses in terms of reinforcement of transmission lines and ancillary services are not sufficiently fast or effective. In this study, we analyze the potential of a grid balancing system based on different combinations of traditional gas turbine based power plants with innovative ‘power-to-gas’ plants. Power-to-gas is a promising solution to balance the electric grid, based on water electrolysis, which can effectively contribute to reducing the uncertainty of dispatch plans. According to this system, the excess power produced by renewables is converted into hydrogen, which can be then injected into the natural gas grid. Different economic scenarios are assessed in this work, leading to a set of optimal sizes of the proposed system, using a statistical approach in order to estimate wind farm productivity and forecasting errors, as well as each component load conditions. Economic parameters, equivalent operating hours, CO2 emissions and lost wind energy are the main performances indexes considered in this work to compare gas turbine and electrolysis balancing systems. From an economic point of view, hybrid systems including both balancing technologies generally lead to the best performances. The scenario which leads to the highest power-to-gas capacity (with installed electrolysis power of about 6% of wind park nominal power) is determined coupling a mid-term perspective of reduction in investment costs with favorable energy market conditions or with incentives (“green-gas” or carbon taxes). In such conditions, an equivalence between the two technologies in terms of optimum installed power can be reached at an electricity-to-natural gas cost ratio between 1.8 and 2. In most interesting scenarios, the P2G system brings about a lower total wind electricity injected in the grid, due to wind-to-gas energy conversion, while it allows reducing energy losses due to grid congestion and curtailment of the wind park; however, the additional CO2 emissions due to gas turbines operation and due to the reduced electricity production tend to offset or to limit the positive effect of the carbon-free gas production.
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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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2015.02.055&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 285 citations 285 popularity Top 0.1% influence Top 1% impulse Top 1% Powered by BIP!
more_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 Article , Journal 2021 ItalyPublisher:Elsevier BV Authors: Crespi E.; Colbertaldo P.; Guandalini G.; Campanari S.;handle: 11311/1166962
Abstract The increasing penetration of intermittent renewable sources, fostering power sector decarbonization, calls for the adoption of energy storage systems as an essential mean to improve local electricity exploitation, reducing the impact of distributed power generation on the electric grid. This work compares the use of hydrogen-based Power-to-Power systems, battery systems and hybrid hydrogen-battery systems to supply a constant 1 MWel load with electricity locally generated by a photovoltaic plant. A techno-economic optimization model is set up that optimizes the size and annual operation of the system components (photovoltaic field, electrolyzer, hydrogen storage tanks, fuel cell and batteries) with the objective of minimizing the annual average cost of electricity, while guaranteeing an imposed share of local renewable self-generation. Results show that, with the present values of investment costs and grid electricity prices, the installation of an energy storage system is not economically attractive by itself, whereas the installation of PV panels is beneficial in terms of costs, so that the baseline optimal solution consists of a 4.2 MWp solar field capable to self-generate 33% of the load annually. For imposed shares of self-generation above 40%, decoupling generation and consumption becomes necessary. The use of batteries is slightly less expensive than the use of hydrogen storage systems up to a 92% self-generation rate. Above this threshold, seasonal storage becomes predominant and hybrid storage becomes cheaper than batteries. The sale of excess electricity is always important to support the plant economics, and a sale price reduction sensibly impacts the results. Hydrogen storage becomes more competitive when the need for medium and long terms energy shift increases, e.g. in case of having a cap on the available PV capacity.
RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Hydrogen EnergyArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2020.09.152&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu37 citations 37 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Hydrogen EnergyArticle . 2021 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijhydene.2020.09.152&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2018 ItalyPublisher:Elsevier BV Authors: Colbertaldo, Paolo; Guandalini, Giulio; Campanari, Stefano;handle: 11311/1069167
Abstract This work analyses future energy scenarios at country scale, focusing on the interaction between power and transport sectors, where Power-to-Gas is expected to play a key role. A multi-node model is developed to represent the integrated energy system, including additional electrical load from plug-in electric vehicles, energy storage, and hydrogen production from excess electricity for fuel cell vehicles. Electricity supply-demand balance is solved hourly, while liquid and gaseous fuels for mobility are accounted for cumulatively over the year. The Italian system is investigated, considering different evolution scenarios up to 2030 and 2050. The simulations yield a maximum 57% share of renewable sources in the electricity mix in 2050, while biomass could account for a further 5%. Results show that the use of Power-to-Gas increases the overall share of renewable sources across the sectors. High coverage of hydrogen mobility demand by clean production (about 81%) is achieved in presence of a large installation of renewables and a substantial introduction of fuel cell vehicles. However, greenhouse gas emissions reduction does not attain the ambitious long-term targets. In the best scenario, transport approaches the 60% cut, while power sector achieves only half of the desired 95% variation, thus calling for additional measures.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.energy.2018.04.089&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 88 citations 88 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.energy.2018.04.089&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2007 ItalyPublisher:Elsevier BV S. Bedogni; CAMPANARI, STEFANO; IORA, PAOLO GIULIO; L. Montelatici; SILVA, PAOLO;handle: 11379/112 , 11311/552547
Abstract This work presents an experimental analysis of circular-planar type intermediate-temperature solid oxide fuel cells, and the interpretation of the experimental results with a finite volume model. The model is developed to generate cell mass and energy balances and internal cell profiles for all the relevant thermodynamic or electrochemical variables, and includes a fluid-dynamic analysis focusing on the investigation of the cell internal flow conditions. Experiments have been carried out at the Edison laboratories, where several single cells fuelled with hydrogen were subject to polarization curve analysis and internal temperature measurements. The model is calibrated and validated over experimental voltage–current data, provides information on cell internal losses and demonstrates the capacity of predicting the single cell behavior and overall energy balances when changing significantly the cell operating conditions. The discussion also addresses the effects of diffusion losses appearing in the experiments carried out at high current output and low fuel hydrogen content.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2007.07.014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu32 citations 32 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2007.07.014&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2019 ItalyPublisher:Elsevier BV Luca Mastropasqua; Lorenzo Pierangelo; Maurizio Spinelli; Matteo C. Romano; Stefano Campanari; Stefano Consonni;handle: 11311/1111763
Abstract This study explores the use of state-of-the-art, high temperature Molten Carbonate Fuel Cells (MCFC) fed with natural gas as retrofit post-combustion CO2 capture technology for an existing integrated steel mill. Quantitative estimates of performances and costs are generated for a reference steelwork producing 4 Mton y−1 of hot rolled coil, where the fuel cell abates three major sources of CO2 emissions: i) power plant; ii) coke oven; iii) hot stoves. The MCFC-based system that removes CO2 and generates power includes a gas processing unit which produces nearly-pure CO2 for permanent storage (or-utilization) and hydrogen that can be conveniently used in the steel mill. The fuel cell operating conditions are adapted to the specific industrial application and its performances are predicted by an in-house process simulation tool. The techno-economic analysis finds conditions complying with the operating constraints of the fuel cell stacks while reducing direct CO2 emissions of the steel mill by more than 70% and achieving apparently interesting economic returns. In addition, the CO2 capture system generates large amounts of carbon-free electricity (up to 545 MWel) and hydrogen (up to 346 MWLHV) yielding a first law efficiency of approximately 60%. The synergistic production of decarbonized steel, hydrogen and electricity is key to the attractiveness the MCFC-CCS configuration proposed here: after assuming reasonable values for the “by-product” hydrogen and electricity and accounting for the CO2 avoidance they bring about, the estimated overall cost of CO2 avoided (CCA) ranges between 25 and-65 $ tonCO2−1.
RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Greenhouse Gas ControlArticle . 2019 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijggc.2019.05.033&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu39 citations 39 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down International Journal of Greenhouse Gas ControlArticle . 2019 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.ijggc.2019.05.033&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 ItalyPublisher:Elsevier BV Authors: Crespi, E.; Colbertaldo, P.; Guandalini, G.; Campanari, S.;handle: 11311/1221409
RE.PUBLIC@POLIMI Res... arrow_drop_down Journal of Energy StorageArticle . 2022 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.est.2022.105613&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu16 citations 16 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down Journal of Energy StorageArticle . 2022 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.est.2022.105613&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2020Publisher:Elsevier BV Authors: Luca Mastropasqua; Andrea Pegorin; Stefano Campanari;Abstract Oil refining sector contributes for 4% of the overall anthropogenic CO2 emissions and it is recognised as an important industrial sector for the implementation of carbon capture and storage technologies. This work focuses on the investigation of oil refinery emission sources and the specific development of a multi-energy SOFC-based system for the combined production of hydrogen, electricity and process steam with carbon capture. The system is sized to satisfy the fraction of refinery hydrogen demand, i.e., 22,500 Nm3 h−1 – conventionally covered by natural gas fired steam methane reformers. Four plant layouts are designed for this purpose featuring different levels of integration with the refinery process. The thermodynamic analysis shows the potentialities in terms of primary energy savings compared to separate production with conventional technologies. CO2 emissions can be reduced by 85% compared to reference cases, reaching zero or negative overall emissions due to the exported steam and electricity. A preliminary economic analysis is performed to establish the value of the levelised cost of hydrogen, to define its dependence on the carbon tax value and compare its value with difference hydrogen production technologies. This works shows the possibility of producing hydrogen at 3.3 € kg−1 in a current cost scenario.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2019.227461&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu12 citations 12 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.jpowsour.2019.227461&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 ItalyPublisher:Elsevier BV Authors: SPINELLI, MAURIZIO; ROMANO, MATTEO CARMELO; CONSONNI, STEFANO; CAMPANARI, STEFANO; +2 AuthorsSPINELLI, MAURIZIO; ROMANO, MATTEO CARMELO; CONSONNI, STEFANO; CAMPANARI, STEFANO; Marchi, Maurizio; Cinti, Giovanni;handle: 11311/966086
AbstractCement production process features intrinsically large CO2 emission due to the decomposition of limestone by calcination reaction and to fuel combustion, necessary for sustaining the endothermic calcination process and the formation of clinker. Conventional approaches to CO2 emission reduction in cement plants are based on post-combustion capture with chemical solvents, requiring a substantial energy consumption for regeneration, or oxycombustion in the cement kiln, involving a deep redesign of the plant. The aim of this work is investigating the application of Molten Carbonate Fuel Cells in cement plants for CO2 capture from the plant exhaust gases, using the fuel cells as active CO2 concentrators of combustion flue gases and eventually obtaining a purified CO2 stream through a cryogenic process. A novel configuration with MCFCs added along the exhaust line has been assessed by means of process simulations. The results show a remarkable potential in terms of equivalent avoided CO2 emissions (exceeding 1000g/kWh), high share of CO2 avoided (up to about 70%) and low energy penalties.
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.egypro.2014.11.687&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 25 citations 25 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
visibility 2visibility views 2 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.egypro.2014.11.687&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2021 ItalyPublisher:Elsevier BV Authors: Scaccabarozzi R.; Gatti M.; Campanari S.; Martelli E.;handle: 11311/1202561
Abstract This paper presents a new hybrid cycle based on the integration between a pressurized solid oxide fuel cell (SOFC) and a semi-closed regenerative intercooled Brayton cycle using a CO2-rich stream as the working fluid. Nearly pure oxygen is used as oxidant for both the Brayton cycle combustor and the fuel cell. The cycle is conceived to produce electricity while capturing 100% of the produced CO2 using natural gas or other fuels suitable for SOFC fuel cells. If the maximum cycle pressure is above the CO2 critical pressure, the semi-closed Brayton cycle becomes a supercritical CO2 cycle with the related efficiency advantages. In this work, the cycle is modelled with Aspen Plus and its design variables are optimized to find the maximum electric efficiency using an ad-hoc optimization approach. In the case study assessed (natural gas thermal input of 500 MW), the optimized cycle, working at 40 MPa with a cooled expander, achieves an outstandingly high efficiency of 75.7% (LHV basis) with CO2 capture. The sensitivity analysis shows that similar efficiency values can be achieved even with less challenging operating conditions for both the Brayton cycle and fuel cell (maximum cycle pressure of 27.5 bar, uncooled turbine and fuel utilization factor of the fuel cell equal to 0.75).
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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2021.116711&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu33 citations 33 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!
more_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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.apenergy.2021.116711&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type , Contribution for newspaper or weekly magazine 2009 United Kingdom, ItalyPublisher:ASMEDC Authors: ROMANO, MATTEO CARMELO; CAMPANARI, STEFANO; SPALLINA, VINCENZO; LOZZA, GIOVANNI;doi: 10.1115/gt2009-59551
handle: 11311/563259
Application of large scale high temperature fuel cells on syngas fuel produced from coal would be a turning point in the power generation sector, dramatically improving the efficiency and the environmental performance of coal-fired power plants. The purpose of this study is the assessment of a system constituted by a SOFC-based hybrid cycle integrated with a coal gasification process. In this system, syngas produced in a high efficiency, dry feed, oxygen blown, entrained flow Shell gasifier is cooled, depurated from particulate and sulfur compounds and reheated; the clean syngas feeds a pressurized SOFC together with high pressure air generated by the compressor of a gas turbine. After combustion of unconverted syngas, fuel cell exhausts are expanded and cooled, providing heat to a bottoming steam cycle for an efficient energy recovery. A high integration between gasification and power islands is necessary in order to obtain an elevated efficiency: the heat recovery system from syngas cooling is carefully arranged to provide thermal power for clean syngas reheating, air preheating and steam generation. The paper presents a preliminary analysis of literature results and a discussion of the thermodynamic implications arising from the use of different primary fuels in a fuel cell-gas turbine cycle. Then the work presents a detailed thermodynamic analysis of the proposed IGFC layout, assessing the effect of SOFC operating pressure on power balance and net plant efficiency. A sensitivity analysis on the variation of fuel and air utilization in the fuel cell is also performed. Results show that the present innovative SOFC-based power system may achieve an efficiency gain of 7–11 percentage points, with respect to an advanced IGCC based on state of the art technology.
The University of Ma... arrow_drop_down The University of Manchester - Institutional RepositoryContribution for newspaper or weekly magazine . 2009Data sources: The University of Manchester - Institutional RepositoryRE.PUBLIC@POLIMI Research Publications at Politecnico di MilanoConference object . 2009add 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1115/gt2009-59551&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu12 citations 12 popularity Average influence Top 10% impulse Top 10% Powered by BIP!
more_vert The University of Ma... arrow_drop_down The University of Manchester - Institutional RepositoryContribution for newspaper or weekly magazine . 2009Data sources: The University of Manchester - Institutional RepositoryRE.PUBLIC@POLIMI Research Publications at Politecnico di MilanoConference object . 2009add 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.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1115/gt2009-59551&type=result"></script>'); --> </script>
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