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description Publicationkeyboard_double_arrow_right Other literature type 2021Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Ð’ данной работе проведен анализ ÑнергоÑффективноÑти иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð½Ð´ÐµÐ½Ñационных котлов Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¾Ð±ÑŠÐµÐºÑ‚Ð° капитального ÑтроительÑтва, раÑположенного по адреÑу г. Санкт-Петербург, улица КораблеÑтроителей, уч. 2, в завиÑимоÑти от таких параметров ÑиÑтемы: тип котла отоплениÑ, КПД, Ð²Ñ€ÐµÐ¼Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ñ‹ ÑиÑтемы в течение Ñуток, Ñнергозатраты. Задачи, которые решалиÑÑŒ в ходе иÑÑледованиÑ: 1. Изучение техничеÑких оÑобенноÑтей газовых котлов Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½Ð´ÐµÐ½Ñационного и конвекционного типа, выÑвление преимущеÑтв и недоÑтатков. 2. Разработка методики раÑчета, в завиÑимоÑти от типа иÑпользуемого котла, ÑнергоÑффективноÑти его Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² ÑиÑтеме Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð¾Ð±Ñ‰ÐµÑтвенного зданиÑ. 3. Выполнение раÑчета на оÑнове ÑреднеÑтатиÑтичеÑких данных. 4. Ð’Ñ‹Ñвление общих закономерноÑтей Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñроков окупаемоÑти при внедрении конденÑационного котла в ÑиÑтему Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð·Ð´Ð°Ð½Ð¸Ñ. Ð’ результате были проанализированы преимущеÑтва и недоÑтатки иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ñ‚Ð»Ð¾Ð² обоих видов. УдалоÑÑŒ доказать возможноÑть ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑкÑплуатационных затрат Ð·Ð´Ð°Ð½Ð¸Ñ Ð¿Ñ€Ð¸ внедрении конденÑационного котла в ÑиÑтему отоплениÑ. Были получены оÑновные закономерноÑти Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñрока окупаемоÑти в завиÑимоÑти от времени работы в Ñутках ÑиÑтемы, ее КПД. Ð Ð°Ð·Ñ€Ð°Ð±Ð¾Ñ‚Ð°Ð½Ð½Ð°Ñ Ð¼ÐµÑ‚Ð¾Ð´Ð¸ÐºÐ° оценки ÑнергоÑффективноÑти может быть иÑпользована Ð´Ð»Ñ Ð¾Ñ†ÐµÐ½ÐºÐ¸ целеÑообразноÑти Ð²Ð½ÐµÐ´Ñ€ÐµÐ½Ð¸Ñ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð³Ð¾ конденÑационного котла в ÑиÑтему Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð²Ð½Ðµ завиÑимоÑти от типа зданиÑ, географичеÑкого меÑÑ‚Ð¾Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¸Ð»Ð¸ от необходимых микроклиматичеÑких параметров внутри помещениÑ. Ð”Ð»Ñ Ð²Ñ‹Ð¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÐºÐ¾Ñ€Ñ€ÐµÐºÑ‚Ð½Ð¾Ð³Ð¾ раÑчета необходимо иÑпользовать Ñледующие показатели: КПД уÑтановки, наружными и внутренними климатичеÑкими параметрами, ÑтоимоÑтью Ð²Ð½ÐµÐ´Ñ€ÐµÐ½Ð¸Ñ Ð¸ обÑÐ»ÑƒÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ñ‚Ð»Ð° в ÑиÑтему отоплениÑ. In this paper, an analysis of the energy efficiency of the use of condensing heating boilers for a capital construction object located at the address of St. Petersburg, Korablestroiteley Street, uch. 2, depending on such system parameters is carried out: type of heating boiler, efficiency, operating time of the system during the day, energy consumption. Tasks that were solved in the course of the study: 1. Study of technical features of gas heating boilers of condensing and convection type, identification of advantages and disadvantages. 2. Development of a methodology for calculating, depending on the type of boiler used, the energy efficiency of its use in the heating system of a public building. 3. Performing the calculation based on the average statistical data. 4. Identification of general patterns of changes in the payback period when introducing a condensing boiler into the building heating system. As a result, the advantages and disadvantages of using both types of boilers were analyzed. It was possible to prove the possibility of reducing the operating costs of the building when introducing a condensing boiler into the heating system. The main patterns of changes in the payback period depending on the operating time in the day of the system, its efficiency were obtained. The developed methodology for assessing energy efficiency can be used to assess the feasibility of introducing a gas condensing boiler into the heating system, regardless of the type of building, geographical location or the necessary microclimatic parameters inside the room. To perform a correct calculation, you must use the following indicators:: The efficiency of the installation, external and internal climatic parameters, the cost of implementing and maintaining the boiler in the heating system.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2023Publisher:ЗАО "Научно-техническая фирма "Энергопрогресс" The article considers the power consumption of rural households in the Belgorod region. An assessment was made of the possibility of extending the results of the analysis to other areas of the “middle lane” of Russia. The indicators that allow a positive answer to the questions posed are considered. These are: long-term average wind speed; average long-term specific arrival of solar radiation on a horizontal area of 1 m2; per capita electricity consumption per villager; electricity consumption per 1 m2 of living space of a rural resident. In general, the data indicate a quite satisfactory representation of the results obtained for assessing the possibilities of power supply for households using renewable energy sources in the regions of the "middle lane" of Russia. The ratio of the maximum power consumption to the average power consumption for various averaging periods is determined: 10 seconds, 1 minute, 5 minutes, by months of the year and year. The value of the ratio of these powers indicates the need to consider their overload capacity when choosing inverters, and batteries have limitations when charging and discharging. An assessment of the payback period of four options for power supply systems was carried out: two options based on wind turbines with connection to the grid and stand-alone, and two similar options based on photovoltaic modules. Prices for equipment are taken at the level of the beginning of 2018, that is, before the onset of the crisis due to the coronavirus pandemic, since calculations at the current constantly rising prices are completely meaningless. Дан анализ электропотребления сельского домовладения в Белгородской области. Определена возможность распространения результатов анализа на другие области средней полосы России. Рассмотрены показатели, позволяющие положительно ответить на поставленные вопросы. Таковыми являются: среднемноголетняя скорость ветра; среднемноголетний удельный приход солнечной радиации на горизонтальную площадку; душевое потребление электроэнергии на одного сельского жителя; потребление электроэнергии на 1_м2 жилой площади сельского дома. В целом данные указывают на вполне удовлетворительное представительство полученных результатов для оценки возможностей электроснабжения домовладения с использованием ВИЭ в областях средней полосы России. Определено отношение максимальной потребляемой мощности к средней годовой потребляемой мощности для различных периодов осреднения: 10_с, 1_мин, 5_мин. Это отношение необходимо учитывать при выборе инверторов, имея в виду их перегрузочную способность, а у аккумуляторных батарей учитывать ограничения при заряде и разряде. Определён простой срок окупаемости четырёх вариантов систем электроснабжения: два варианта на базе ветроэнергетической установки (ВЭУ) с присоединением к сети и в автономном режиме, и два аналогичных варианта на базе фотоэлектрических модулей. Электрические станции, Выпуск 3 2023, Pages 51-61
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Book 2022Publisher:ИНСТИТУТ ДАЛЬНЕГО ВОСТОКА РОССИЙСКОЙ АКАДЕМИИ НАУК The monograph is devoted to the prospects for the development of the energy market in China in the context of increasing instability in the global energy sector, the imbalance of supply and demand for oil and natural gas and the large"scale development of the green agenda. Special attention is paid to the analysis of the new trend of the transition to the widespread use of renewable energy sources instead of fossil fuels — the so"called energy transition as a new direction of global energy development, which has an impact on China. The transformations laid down in the energy transition entail changes in the energy policy of various countries. The author examines the external and internal dimensions of the modern energy policy of the country. It is stated that the broad gasification of the country is positioned as the leading strategic priority of China's modern energy policy, along with the development of renewable energy sources. The book also touches on the issues of China's energy policy in the context of Russian interests, including the active participation of Chinese companies in the development of the Arctic zone of Russia. The monograph contains a number of materials tested in the author's recent works published in 2020—2021. Here they are presented in an augmented form. Монография посвящена рассмотрению перспектив развития энергетического рынка в Китае в условиях нарастающей нестабильности в мировой энергетике, дисбаланса спроса и предложения на нефть и природный газ и масштабного развития зеленой повестки. Особое внимание уделено анализу нового тренда перехода к широкому использованию возобновляемых источников энергии вместо ископаемых видов топлива — так называемый энергетический переход как новое направление развития мировой энергетики, которое оказывает воздействие и на Китай. Преобразования, закладываемые в энергопереход, влекут за собой внесение изменений в энергетическую политику различных стран. Автор рассматривает внешнее и внутреннее измерения современной энергетической политики страны. Констатируется, что в качестве ведущего стратегического приоритета современной энергетической политики Китая, наряду с развитием возобновляемых источников энергии, позиционируется широкая газификация страны. В книге затрагиваются и вопросы энергетической политики Китая в контексте российских интересов, включая активное участие китайских компаний в освоении арктической зоны России. Монография содержит ряд материалов, апробированных в недавних работах автора, опубликованных в 2020—2021 гг. Здесь они представлены в дополненном виде.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2021Publisher:ООО "Институт развития образования и консалтинга" Статья посвящена исследованию процессов обеспечения экономической безопасности региональной экономики в условиях цифровой трансформации. Полученные результаты подтверждают высказанное ранее предположения о влиянии факторов обеспечения экономической безопасности на устойчивое функционирование регионов в условиях обеспечения цифровой трансформации. The article is devoted to the study of the processes of ensuring the economic security of the regional economy in the context of digital transformation. The results obtained confirm the assumptions made earlier about the influence of economic security factors on the sustainable functioning of regions in the context of digital transformation.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022Publisher:АО «КазУМОиМЯ им.Абылай хана» In this article, the main goal is an attempt to present conclusions on the analysis of changes in China's environmental policy in the framework of sustainable development goals. Within the framework of the SDGs, China is moving in three main directions: economic, social and environmental. All three components are somehow interconnected with each other; however, the article provides conclusions only on the environmental component. Thus, data for the last ten years are taken as a basis, including reasonable indicators in the UN 2030 agenda. It is important to note that despite the fact that China paid great attention to the economy during a significant period of its existence, however, positive shifts towards improving the environment have recently been noticed. It was concluded that this change has made a positive contribution to China's sustainable development by creating a more balanced framework for future development using both mandatory and market-based instruments. Nevertheless, in order to achieve the SDGs in the field of ecology, it is necessary, on the one hand, to accelerate the process of creating an “ecological civilization”, and on the other hand, pay attention to policy coordination, considering existing problems in the environmental, social and economic spheres. в данной статье главной целью служит попытка предоставить выводы по анализу изменений экологической политики Китая в рамках целей устойчивого развития. В рамках ЦУР Китай двигается в трех основных направлениях: экономической, социальной и экологической. Все три компонента так или иначе взаимосвязаны с друг-другом, однако в статье приводятся выводы только по экологическому компоненту. Таким образом за основу взяты данные за последние десять лет, в том числе обоснованные показатели в повестке ООН до 2030 года. Важно отметить, что несмотря на то, что Китай в существенное время своего существования уделял большое внимание экономике, в последнее время были замечены позитивные сдвиги в сторону улучшения экологии. Был сделан вывод о том, что данное изменение внесло позитивный вклад в устойчивое развитие Китая, сформировав более сбалансированную структуру для будущего развития с использованием как обязательных, так и рыночных инструментов. Тем не менее для выполнения ЦУР в области экологии нужно, с одной стороны, ускорить процесс создания «экологической цивилизации», а с другой, обратить внимание на координацию политики с учетом существующих проблем в экологической, социальной и экономической сферах. Осы мақалада негізгі мақсат - тұрақты даму мақсаттары шеңберінде Қытайдың экологиялық саясатындағы өзгерістерді талдау бойынша қорытындыларды ұсыну әрекеті болып табылады.. ТДМ шеңберінде Қытай үш негізгі бағытта қозғалады: экономикалық, әлеуметтік және экологиялық. Барлық үш құрамдас бір-бірімен қандай да бір түрде байланысты, дегенмен мақалада тек экологиялық компонент бойынша қорытындылар берілген. Осылайша, БҰҰ-ның 2030 күн тәртібіндегі негізді көрсеткіштерді қоса алғанда, соңғы он жылдағы деректер негізге алынды. Қытай өзінің өмір сүрген елеулі кезеңінде экономикаға үлкен көңіл бөлгеніне қарамастан, соңғы уақытта қоршаған ортаны жақсарту бағытында оң өзгерістер байқалғанын атап өткен жөн. Бұл өзгеріс міндетті және нарықтық құралдарды пайдалана отырып, болашақ даму үшін анағұрлым теңдестірілген негіз құру арқылы Қытайдың тұрақты дамуына оң ықпал етті деген қорытындыға келді. Осыған қарамастан, экология саласындағы ТМД-ға қол жеткізу үшін, бір жағынан, «экологиялық өркениетті» құру үдерісін жеделдету қажет, ал екінші жағынан, саясатты үйлестіруге назар аудару қажет. экологиялық, әлеуметтік және экономикалық салалардағы бар проблемалар. Международные отношения и Регионоведение, Выпуск 4 (50) 2022
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2021Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Целью работы ÑвлÑетÑÑ Ð¸ÑÑледование и обоÑнование перÑпектив иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð»ÑŒÑ‚ÐµÑ€Ð½Ð°Ñ‚Ð¸Ð²Ð½Ñ‹Ñ… иÑточников Ñнергии в уÑловиÑÑ… Северо-Западного региона РоÑÑии. Работа выполнÑлоÑÑŒ на материалах информационных реÑурÑов компании «ТГК-1». ИÑпользованные методы: общенаучные методы иÑÑледованиÑ: контентный и Ñравнительный анализ, метод аналогий, а также методы оценки инвеÑтиционной привлекательноÑти проектов. Результаты работы: - обоÑнована ÑкономичеÑÐºÐ°Ñ Ñ†ÐµÐ»ÐµÑообразноÑть и организационно-техничеÑÐºÐ°Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾Ñть реализации ÑтроительÑтва новой гидроÑлектроÑтанции на территории Северо-Западного региона; - проведена оценка инвеÑтиционной привлекательноÑти Ð²Ð¾Ð·Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð½Ð¾Ð²Ñ‹Ñ… ÑлектроÑтанций Ð´Ð»Ñ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ из вариантов; - обоÑновано уÑловие ÑкономичеÑки Ñффективного иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð³Ð¸Ð´Ñ€Ð¾ÑлектроÑтанции – возведение ГÐС мощноÑтью 360 МВт, Ñ Ð¾Ð´Ð½Ð¾Ð²Ñ€ÐµÐ¼ÐµÐ½Ð½Ñ‹Ð¼ возведением (в целÑÑ… обеÑÐ¿ÐµÑ‡ÐµÐ½Ð¸Ñ Ñ€ÐµÐ³Ð¸Ð¾Ð½Ð° необходимым теплом) котельной. ОблаÑть Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñ€ÐµÐ·ÑƒÐ»ÑŒÑ‚Ð°Ñ‚Ð¾Ð² ВКР– ÑнергетичеÑкие уÑтановки и Ñ‚Ñ€Ð°Ð´Ð¸Ñ†Ð¸Ð¾Ð½Ð½Ð°Ñ ÑлектроÑнергетика, при решении задач оптимизации производÑтва ÑлектричеÑкой и тепловой Ñнергии, раÑÐ¿Ñ€ÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ñ‚Ñ€ÑƒÐ´Ð° и управлениÑ, ÑкономичеÑкого обоÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ñ ÑƒÐ¿Ñ€Ð°Ð²Ð»ÐµÐ½Ñ‡ÐµÑких решений по возведению ÑлектроÑтанций. Вывод. Задачи ВКРрешены, цель доÑтигнута, определена облаÑть Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñ€ÐµÐ·ÑƒÐ»ÑŒÑ‚Ð°Ñ‚Ð¾Ð². The aim of the graduate qualification work is to study and substantiate the prospects for the use of alternative energy sources in the North-West region of Russia. The graduate qualification work was carried out on the basis on the materials of information resources of TGK-1 company. Methods used: general scientific research methods - content and comparative analysis, analogy method, as well as methods for assessing the investment attractiveness of projects. The main results of the graduate qualification work: - substantiated the economic feasibility and organizational and technical feasibility of implementing the construction of a new hydroelectric power station in the North-West region; - an assessment of the investment attractiveness of the construction of new power plants for each of the options was carried out; - the condition for the economically efficient use of the hydroelectric power plant has been substantiated - the construction of a hydroelectric power station with a capacity of 360 MW, with the simultaneous construction (in order to provide the region with the necessary heat) of a boiler house. The areas of the graduate qualification work results application - power plants and traditional electric power engineering, when solving problems of optimizing the production of electrical and thermal energy, distribution of labor and management, economic substantiation of management decisions for the construction of power plants. Conclusions of graduate qualification work. Tasks have been solved, aim has been achieved, the areas of the results application have been determined.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021Publisher:Interrin Scientific and Production Enterprise LLP Данная статья посвящена обзору методов обогащения угля и лабораторных испытаний по снижению зольности угля. Обсуждение проблемы высокой зольности вызвана спросом на отечественный уголь и конкуренцией на мировом рынке. На сегодняшний день продолжают развиваться наиболее распространенные техники обогащения угля, и только комбинирование методов приводит к наиболее приближенному результату, востребованному потребителями. Применение уже известных высокотехнологических способов требует больших капитальных затрат и эксплуатационных расходов во всех циклах производства. При этом глубокая очистка достигается исключительно немеханическим воздействием на уголь. В работе представлен способ кислотной очистки от неорганических примесей, нехарактерный для обогащения угля. Приведены результаты и сравнительный анализ обработки угля с разным уровнем зольности. This article is devoted to the review of methods of coal enrichment and laboratory testing to reduce the ash content of coal. Discussion of the problem of high ash content caused by the demand for domestic coal and competition in the world market. To date, the most common coal processing techniques continue to develop, and only a combination of methods leads to the most approximate result that is in demand by consumers. The use of already known high-tech methods requires large capital expenditures and operating costs in all production cycles. At the same time, deep cleaning is achieved exclusively by non-mechanical action on coal. The paper presents a method of acid purification from inorganic impurities that is not typical for coal enrichment. The results and comparative analysis of the processing of coal with different levels of ash content are presented.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021Publisher:Tomsk Polytechnic University Authors: Denis Y. Davydov; Sergey G. Obukhov;Relevance. The urgent task of the technical and economic development of the Northern and Eastern regions of Russia is to provide reliable and efficient power supply to consumers, geographically located in remote, hard-to-reach areas. The use of wind power plants is a promising way to solve this problem. The primary task of the design and feasibility study of the use of wind power plants is to predict changes in wind speeds at the site of the power plant installation. The stochastic nature of the wind and its spatiotemporal variability explain the high complexity of this problem, for the solution of which the methods of mathematical modeling are used. The known models of wind speed based on Markov chains, autoregressive moving-average and other discrete models do not allow varying the time step, which does not allow their use for simulation of operating modes of wind turbines and wind energy systems. The article proposes a model of wind speed based on the stochastic differential equation which eliminates this drawback. The aim of the study is to construct wind speed model based on fractional Ornstein–Uhlenbeck process with a periodic long-term mean, which provides modeling of static and dynamic modes of operation of a wind power plant at different time intervals. Methods: mathematical and computer modeling using Matlab/Simulink software environment. Results. The proposed model, in contrast to the known SDE-based models, is able to produce autocorrelated wind speed trajectories with long-term dependence, daily and monthly variations to perform more detailed simulation of the operating modes of wind turbines at different time intervals with the required time step. The model was tested using the data of climatic observations of wind speed obtained from electronic archive of the All-Russian Institute of Hydrometeorological Information. The model adequacy was evaluated by comparing characteristics of simulated wind speed trajectories with actual observations collected at 518 weather stations located on territory of Russia.
Известия Томского по... arrow_drop_down Известия Томского политехнического университета: Инжиниринг георесурсовArticle . 2021Data sources: DOAJadd 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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more_vert Известия Томского по... arrow_drop_down Известия Томского политехнического университета: Инжиниринг георесурсовArticle . 2021Data sources: DOAJadd 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 2022Publisher:Институт проблем управления им. В. А. Трапезникова РАН The purpose of this work is to analyze the current projects of the World Energy Agency (IEA) aimed at exploring the potential for reducing the cost of producing new types of biofuels, in terms of methodology, status and first results. As a result, it was revealed that, as a methodological basis, IEA projects use a top-down approach to the analysis of primary data (top-down), the theory of learning curves for forecasting and classical project analysis. Expert surveys, meta-analysis of primary data, and sensitivity analysis of projects are used as the main research methods. The main results of the IEA projects indicate that despite the significant potential for cost reduction in the production of many types of biofuels, it is not possible to achieve price parity with traditional fuels based on hydrocarbons in the medium term. Keywords: bioenergy, cost reduction, biofuel production, project analysis. Целью настоящей работы является анализ текущих проектов Мирового Энергетического Агентства (МЭА), направленных на изучение потенциала для снижения затрат на производство новых видов биотоплива, с точки зрения методологии, статуса и первых результатов. В результате было выявлено, что как методологическую основу проекты МЭА используют нисходящий подход к анализу первичных данных (top-down), теорию кривых обучения для прогнозирования и классический проектный анализ. В качестве основных методов исследования используют экспертные опросы, мета-анализ первичных данных, анализ чувствительности проектов. Основные результаты проектов МЭА свидетельствуют о том, что несмотря на существенный потенциал снижения затрат при производстве многих видов биотоплив, достичь ценового паритета с традиционными видами топлива, основанными на углеводородах, в среднесрочной перспективе не удается. Экономический вестник ИПУ РАН, Выпуск 3 2022, Pages 45-52
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2023Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Ð’ данной работе предÑтавлено проектирование двухÑтажного коттеджа, раÑÑчитанного на 1 Ñемью, Ñ Ð²Ñ‹Ð¿Ð¾Ð»Ð½ÐµÐ½Ð¸ÐµÐ¼ вÑех уÑловий по ÑнергоÑффективноÑти Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ климатичеÑких оÑобенноÑтей района ÑтроительÑтва. Результатами Ð¿Ñ€Ð¾ÐµÐºÑ‚Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ ÑвлÑÑŽÑ‚ÑÑ: 1. BIM модель проектируемого зданиÑ; 2. ТеплотехничеÑкий раÑчет ограждающих конÑтрукций и подбор изолÑционного материала; 3. РаÑчет тепловой характериÑтики Ð·Ð´Ð°Ð½Ð¸Ñ Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ транÑмиÑÑионных теплопотерь; 4. Выбор рекуператора, теплового наÑоÑа и раÑчет зондов; 5. РаÑчет ÑиÑтемы водоÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ Ñбора дождевой воды; 6. РаÑчет и подбор Ñолнечных батарей в качеÑтве дополнительного иÑточника ÑлектропитаниÑ. ÐаÑтоÑÑ‰Ð°Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ð° выполнена в ÑоответÑтвии Ñ Ð½Ð¾Ñ€Ð¼Ð°Ñ‚Ð¸Ð²Ð½Ñ‹Ð¼Ð¸ документами. При напиÑании работы активно иÑпользовалиÑÑŒ Ñовременные информационные технологии, в том чиÑле программное обеÑпечение Autodesk Revit 2022, AutoCAD 2022, Microsoft Word 2016, Excel 2016. This paper presents the design of a two-storey cottage designed for 1 family, with the fulfillment of all conditions for energy efficiency, taking into account the climatic features of the construction area. The design results are: 1. BIM model of the projected building; 2. Thermal engineering calculation of enclosing structures and selection of insulating material; 3. Calculation of the thermal characteristics of the building taking into account transmission heat losses; 4. Selection of recuperator, heat pump and calculation of probes; 5. Calculation of the water supply system taking into account the collection of rainwater; 6. Calculation and selection of solar panels as an additional power source. This work was carried out in accordance with regulatory documents. While writing the work, modern information technologies were actively used, including Autodesk Revit 2022, Autocad 2022, Microsoft Word 2016, Excel 2016 software.
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description Publicationkeyboard_double_arrow_right Other literature type 2021Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Ð’ данной работе проведен анализ ÑнергоÑффективноÑти иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð½Ð´ÐµÐ½Ñационных котлов Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¾Ð±ÑŠÐµÐºÑ‚Ð° капитального ÑтроительÑтва, раÑположенного по адреÑу г. Санкт-Петербург, улица КораблеÑтроителей, уч. 2, в завиÑимоÑти от таких параметров ÑиÑтемы: тип котла отоплениÑ, КПД, Ð²Ñ€ÐµÐ¼Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ñ‹ ÑиÑтемы в течение Ñуток, Ñнергозатраты. Задачи, которые решалиÑÑŒ в ходе иÑÑледованиÑ: 1. Изучение техничеÑких оÑобенноÑтей газовых котлов Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½Ð´ÐµÐ½Ñационного и конвекционного типа, выÑвление преимущеÑтв и недоÑтатков. 2. Разработка методики раÑчета, в завиÑимоÑти от типа иÑпользуемого котла, ÑнергоÑффективноÑти его Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² ÑиÑтеме Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð¾Ð±Ñ‰ÐµÑтвенного зданиÑ. 3. Выполнение раÑчета на оÑнове ÑреднеÑтатиÑтичеÑких данных. 4. Ð’Ñ‹Ñвление общих закономерноÑтей Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñроков окупаемоÑти при внедрении конденÑационного котла в ÑиÑтему Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð·Ð´Ð°Ð½Ð¸Ñ. Ð’ результате были проанализированы преимущеÑтва и недоÑтатки иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ñ‚Ð»Ð¾Ð² обоих видов. УдалоÑÑŒ доказать возможноÑть ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑкÑплуатационных затрат Ð·Ð´Ð°Ð½Ð¸Ñ Ð¿Ñ€Ð¸ внедрении конденÑационного котла в ÑиÑтему отоплениÑ. Были получены оÑновные закономерноÑти Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñрока окупаемоÑти в завиÑимоÑти от времени работы в Ñутках ÑиÑтемы, ее КПД. Ð Ð°Ð·Ñ€Ð°Ð±Ð¾Ñ‚Ð°Ð½Ð½Ð°Ñ Ð¼ÐµÑ‚Ð¾Ð´Ð¸ÐºÐ° оценки ÑнергоÑффективноÑти может быть иÑпользована Ð´Ð»Ñ Ð¾Ñ†ÐµÐ½ÐºÐ¸ целеÑообразноÑти Ð²Ð½ÐµÐ´Ñ€ÐµÐ½Ð¸Ñ Ð³Ð°Ð·Ð¾Ð²Ð¾Ð³Ð¾ конденÑационного котла в ÑиÑтему Ð¾Ñ‚Ð¾Ð¿Ð»ÐµÐ½Ð¸Ñ Ð²Ð½Ðµ завиÑимоÑти от типа зданиÑ, географичеÑкого меÑÑ‚Ð¾Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¸Ð»Ð¸ от необходимых микроклиматичеÑких параметров внутри помещениÑ. Ð”Ð»Ñ Ð²Ñ‹Ð¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÐºÐ¾Ñ€Ñ€ÐµÐºÑ‚Ð½Ð¾Ð³Ð¾ раÑчета необходимо иÑпользовать Ñледующие показатели: КПД уÑтановки, наружными и внутренними климатичеÑкими параметрами, ÑтоимоÑтью Ð²Ð½ÐµÐ´Ñ€ÐµÐ½Ð¸Ñ Ð¸ обÑÐ»ÑƒÐ¶Ð¸Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ñ‚Ð»Ð° в ÑиÑтему отоплениÑ. In this paper, an analysis of the energy efficiency of the use of condensing heating boilers for a capital construction object located at the address of St. Petersburg, Korablestroiteley Street, uch. 2, depending on such system parameters is carried out: type of heating boiler, efficiency, operating time of the system during the day, energy consumption. Tasks that were solved in the course of the study: 1. Study of technical features of gas heating boilers of condensing and convection type, identification of advantages and disadvantages. 2. Development of a methodology for calculating, depending on the type of boiler used, the energy efficiency of its use in the heating system of a public building. 3. Performing the calculation based on the average statistical data. 4. Identification of general patterns of changes in the payback period when introducing a condensing boiler into the building heating system. As a result, the advantages and disadvantages of using both types of boilers were analyzed. It was possible to prove the possibility of reducing the operating costs of the building when introducing a condensing boiler into the heating system. The main patterns of changes in the payback period depending on the operating time in the day of the system, its efficiency were obtained. The developed methodology for assessing energy efficiency can be used to assess the feasibility of introducing a gas condensing boiler into the heating system, regardless of the type of building, geographical location or the necessary microclimatic parameters inside the room. To perform a correct calculation, you must use the following indicators:: The efficiency of the installation, external and internal climatic parameters, the cost of implementing and maintaining the boiler in the heating system.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2023Publisher:ЗАО "Научно-техническая фирма "Энергопрогресс" The article considers the power consumption of rural households in the Belgorod region. An assessment was made of the possibility of extending the results of the analysis to other areas of the “middle lane” of Russia. The indicators that allow a positive answer to the questions posed are considered. These are: long-term average wind speed; average long-term specific arrival of solar radiation on a horizontal area of 1 m2; per capita electricity consumption per villager; electricity consumption per 1 m2 of living space of a rural resident. In general, the data indicate a quite satisfactory representation of the results obtained for assessing the possibilities of power supply for households using renewable energy sources in the regions of the "middle lane" of Russia. The ratio of the maximum power consumption to the average power consumption for various averaging periods is determined: 10 seconds, 1 minute, 5 minutes, by months of the year and year. The value of the ratio of these powers indicates the need to consider their overload capacity when choosing inverters, and batteries have limitations when charging and discharging. An assessment of the payback period of four options for power supply systems was carried out: two options based on wind turbines with connection to the grid and stand-alone, and two similar options based on photovoltaic modules. Prices for equipment are taken at the level of the beginning of 2018, that is, before the onset of the crisis due to the coronavirus pandemic, since calculations at the current constantly rising prices are completely meaningless. Дан анализ электропотребления сельского домовладения в Белгородской области. Определена возможность распространения результатов анализа на другие области средней полосы России. Рассмотрены показатели, позволяющие положительно ответить на поставленные вопросы. Таковыми являются: среднемноголетняя скорость ветра; среднемноголетний удельный приход солнечной радиации на горизонтальную площадку; душевое потребление электроэнергии на одного сельского жителя; потребление электроэнергии на 1_м2 жилой площади сельского дома. В целом данные указывают на вполне удовлетворительное представительство полученных результатов для оценки возможностей электроснабжения домовладения с использованием ВИЭ в областях средней полосы России. Определено отношение максимальной потребляемой мощности к средней годовой потребляемой мощности для различных периодов осреднения: 10_с, 1_мин, 5_мин. Это отношение необходимо учитывать при выборе инверторов, имея в виду их перегрузочную способность, а у аккумуляторных батарей учитывать ограничения при заряде и разряде. Определён простой срок окупаемости четырёх вариантов систем электроснабжения: два варианта на базе ветроэнергетической установки (ВЭУ) с присоединением к сети и в автономном режиме, и два аналогичных варианта на базе фотоэлектрических модулей. Электрические станции, Выпуск 3 2023, Pages 51-61
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Book 2022Publisher:ИНСТИТУТ ДАЛЬНЕГО ВОСТОКА РОССИЙСКОЙ АКАДЕМИИ НАУК The monograph is devoted to the prospects for the development of the energy market in China in the context of increasing instability in the global energy sector, the imbalance of supply and demand for oil and natural gas and the large"scale development of the green agenda. Special attention is paid to the analysis of the new trend of the transition to the widespread use of renewable energy sources instead of fossil fuels — the so"called energy transition as a new direction of global energy development, which has an impact on China. The transformations laid down in the energy transition entail changes in the energy policy of various countries. The author examines the external and internal dimensions of the modern energy policy of the country. It is stated that the broad gasification of the country is positioned as the leading strategic priority of China's modern energy policy, along with the development of renewable energy sources. The book also touches on the issues of China's energy policy in the context of Russian interests, including the active participation of Chinese companies in the development of the Arctic zone of Russia. The monograph contains a number of materials tested in the author's recent works published in 2020—2021. Here they are presented in an augmented form. Монография посвящена рассмотрению перспектив развития энергетического рынка в Китае в условиях нарастающей нестабильности в мировой энергетике, дисбаланса спроса и предложения на нефть и природный газ и масштабного развития зеленой повестки. Особое внимание уделено анализу нового тренда перехода к широкому использованию возобновляемых источников энергии вместо ископаемых видов топлива — так называемый энергетический переход как новое направление развития мировой энергетики, которое оказывает воздействие и на Китай. Преобразования, закладываемые в энергопереход, влекут за собой внесение изменений в энергетическую политику различных стран. Автор рассматривает внешнее и внутреннее измерения современной энергетической политики страны. Констатируется, что в качестве ведущего стратегического приоритета современной энергетической политики Китая, наряду с развитием возобновляемых источников энергии, позиционируется широкая газификация страны. В книге затрагиваются и вопросы энергетической политики Китая в контексте российских интересов, включая активное участие китайских компаний в освоении арктической зоны России. Монография содержит ряд материалов, апробированных в недавних работах автора, опубликованных в 2020—2021 гг. Здесь они представлены в дополненном виде.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2021Publisher:ООО "Институт развития образования и консалтинга" Статья посвящена исследованию процессов обеспечения экономической безопасности региональной экономики в условиях цифровой трансформации. Полученные результаты подтверждают высказанное ранее предположения о влиянии факторов обеспечения экономической безопасности на устойчивое функционирование регионов в условиях обеспечения цифровой трансформации. The article is devoted to the study of the processes of ensuring the economic security of the regional economy in the context of digital transformation. The results obtained confirm the assumptions made earlier about the influence of economic security factors on the sustainable functioning of regions in the context of digital transformation.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022Publisher:АО «КазУМОиМЯ им.Абылай хана» In this article, the main goal is an attempt to present conclusions on the analysis of changes in China's environmental policy in the framework of sustainable development goals. Within the framework of the SDGs, China is moving in three main directions: economic, social and environmental. All three components are somehow interconnected with each other; however, the article provides conclusions only on the environmental component. Thus, data for the last ten years are taken as a basis, including reasonable indicators in the UN 2030 agenda. It is important to note that despite the fact that China paid great attention to the economy during a significant period of its existence, however, positive shifts towards improving the environment have recently been noticed. It was concluded that this change has made a positive contribution to China's sustainable development by creating a more balanced framework for future development using both mandatory and market-based instruments. Nevertheless, in order to achieve the SDGs in the field of ecology, it is necessary, on the one hand, to accelerate the process of creating an “ecological civilization”, and on the other hand, pay attention to policy coordination, considering existing problems in the environmental, social and economic spheres. в данной статье главной целью служит попытка предоставить выводы по анализу изменений экологической политики Китая в рамках целей устойчивого развития. В рамках ЦУР Китай двигается в трех основных направлениях: экономической, социальной и экологической. Все три компонента так или иначе взаимосвязаны с друг-другом, однако в статье приводятся выводы только по экологическому компоненту. Таким образом за основу взяты данные за последние десять лет, в том числе обоснованные показатели в повестке ООН до 2030 года. Важно отметить, что несмотря на то, что Китай в существенное время своего существования уделял большое внимание экономике, в последнее время были замечены позитивные сдвиги в сторону улучшения экологии. Был сделан вывод о том, что данное изменение внесло позитивный вклад в устойчивое развитие Китая, сформировав более сбалансированную структуру для будущего развития с использованием как обязательных, так и рыночных инструментов. Тем не менее для выполнения ЦУР в области экологии нужно, с одной стороны, ускорить процесс создания «экологической цивилизации», а с другой, обратить внимание на координацию политики с учетом существующих проблем в экологической, социальной и экономической сферах. Осы мақалада негізгі мақсат - тұрақты даму мақсаттары шеңберінде Қытайдың экологиялық саясатындағы өзгерістерді талдау бойынша қорытындыларды ұсыну әрекеті болып табылады.. ТДМ шеңберінде Қытай үш негізгі бағытта қозғалады: экономикалық, әлеуметтік және экологиялық. Барлық үш құрамдас бір-бірімен қандай да бір түрде байланысты, дегенмен мақалада тек экологиялық компонент бойынша қорытындылар берілген. Осылайша, БҰҰ-ның 2030 күн тәртібіндегі негізді көрсеткіштерді қоса алғанда, соңғы он жылдағы деректер негізге алынды. Қытай өзінің өмір сүрген елеулі кезеңінде экономикаға үлкен көңіл бөлгеніне қарамастан, соңғы уақытта қоршаған ортаны жақсарту бағытында оң өзгерістер байқалғанын атап өткен жөн. Бұл өзгеріс міндетті және нарықтық құралдарды пайдалана отырып, болашақ даму үшін анағұрлым теңдестірілген негіз құру арқылы Қытайдың тұрақты дамуына оң ықпал етті деген қорытындыға келді. Осыған қарамастан, экология саласындағы ТМД-ға қол жеткізу үшін, бір жағынан, «экологиялық өркениетті» құру үдерісін жеделдету қажет, ал екінші жағынан, саясатты үйлестіруге назар аудару қажет. экологиялық, әлеуметтік және экономикалық салалардағы бар проблемалар. Международные отношения и Регионоведение, Выпуск 4 (50) 2022
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2021Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Целью работы ÑвлÑетÑÑ Ð¸ÑÑледование и обоÑнование перÑпектив иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð°Ð»ÑŒÑ‚ÐµÑ€Ð½Ð°Ñ‚Ð¸Ð²Ð½Ñ‹Ñ… иÑточников Ñнергии в уÑловиÑÑ… Северо-Западного региона РоÑÑии. Работа выполнÑлоÑÑŒ на материалах информационных реÑурÑов компании «ТГК-1». ИÑпользованные методы: общенаучные методы иÑÑледованиÑ: контентный и Ñравнительный анализ, метод аналогий, а также методы оценки инвеÑтиционной привлекательноÑти проектов. Результаты работы: - обоÑнована ÑкономичеÑÐºÐ°Ñ Ñ†ÐµÐ»ÐµÑообразноÑть и организационно-техничеÑÐºÐ°Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾Ñть реализации ÑтроительÑтва новой гидроÑлектроÑтанции на территории Северо-Западного региона; - проведена оценка инвеÑтиционной привлекательноÑти Ð²Ð¾Ð·Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð½Ð¾Ð²Ñ‹Ñ… ÑлектроÑтанций Ð´Ð»Ñ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ из вариантов; - обоÑновано уÑловие ÑкономичеÑки Ñффективного иÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð³Ð¸Ð´Ñ€Ð¾ÑлектроÑтанции – возведение ГÐС мощноÑтью 360 МВт, Ñ Ð¾Ð´Ð½Ð¾Ð²Ñ€ÐµÐ¼ÐµÐ½Ð½Ñ‹Ð¼ возведением (в целÑÑ… обеÑÐ¿ÐµÑ‡ÐµÐ½Ð¸Ñ Ñ€ÐµÐ³Ð¸Ð¾Ð½Ð° необходимым теплом) котельной. ОблаÑть Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñ€ÐµÐ·ÑƒÐ»ÑŒÑ‚Ð°Ñ‚Ð¾Ð² ВКР– ÑнергетичеÑкие уÑтановки и Ñ‚Ñ€Ð°Ð´Ð¸Ñ†Ð¸Ð¾Ð½Ð½Ð°Ñ ÑлектроÑнергетика, при решении задач оптимизации производÑтва ÑлектричеÑкой и тепловой Ñнергии, раÑÐ¿Ñ€ÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ñ‚Ñ€ÑƒÐ´Ð° и управлениÑ, ÑкономичеÑкого обоÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ñ ÑƒÐ¿Ñ€Ð°Ð²Ð»ÐµÐ½Ñ‡ÐµÑких решений по возведению ÑлектроÑтанций. Вывод. Задачи ВКРрешены, цель доÑтигнута, определена облаÑть Ð¿Ñ€Ð¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ñ€ÐµÐ·ÑƒÐ»ÑŒÑ‚Ð°Ñ‚Ð¾Ð². The aim of the graduate qualification work is to study and substantiate the prospects for the use of alternative energy sources in the North-West region of Russia. The graduate qualification work was carried out on the basis on the materials of information resources of TGK-1 company. Methods used: general scientific research methods - content and comparative analysis, analogy method, as well as methods for assessing the investment attractiveness of projects. The main results of the graduate qualification work: - substantiated the economic feasibility and organizational and technical feasibility of implementing the construction of a new hydroelectric power station in the North-West region; - an assessment of the investment attractiveness of the construction of new power plants for each of the options was carried out; - the condition for the economically efficient use of the hydroelectric power plant has been substantiated - the construction of a hydroelectric power station with a capacity of 360 MW, with the simultaneous construction (in order to provide the region with the necessary heat) of a boiler house. The areas of the graduate qualification work results application - power plants and traditional electric power engineering, when solving problems of optimizing the production of electrical and thermal energy, distribution of labor and management, economic substantiation of management decisions for the construction of power plants. Conclusions of graduate qualification work. Tasks have been solved, aim has been achieved, the areas of the results application have been determined.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021Publisher:Interrin Scientific and Production Enterprise LLP Данная статья посвящена обзору методов обогащения угля и лабораторных испытаний по снижению зольности угля. Обсуждение проблемы высокой зольности вызвана спросом на отечественный уголь и конкуренцией на мировом рынке. На сегодняшний день продолжают развиваться наиболее распространенные техники обогащения угля, и только комбинирование методов приводит к наиболее приближенному результату, востребованному потребителями. Применение уже известных высокотехнологических способов требует больших капитальных затрат и эксплуатационных расходов во всех циклах производства. При этом глубокая очистка достигается исключительно немеханическим воздействием на уголь. В работе представлен способ кислотной очистки от неорганических примесей, нехарактерный для обогащения угля. Приведены результаты и сравнительный анализ обработки угля с разным уровнем зольности. This article is devoted to the review of methods of coal enrichment and laboratory testing to reduce the ash content of coal. Discussion of the problem of high ash content caused by the demand for domestic coal and competition in the world market. To date, the most common coal processing techniques continue to develop, and only a combination of methods leads to the most approximate result that is in demand by consumers. The use of already known high-tech methods requires large capital expenditures and operating costs in all production cycles. At the same time, deep cleaning is achieved exclusively by non-mechanical action on coal. The paper presents a method of acid purification from inorganic impurities that is not typical for coal enrichment. The results and comparative analysis of the processing of coal with different levels of ash content are presented.
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=10.48498/minmag.2021.195.7.005&type=result"></script>'); --> </script>
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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=10.48498/minmag.2021.195.7.005&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021Publisher:Tomsk Polytechnic University Authors: Denis Y. Davydov; Sergey G. Obukhov;Relevance. The urgent task of the technical and economic development of the Northern and Eastern regions of Russia is to provide reliable and efficient power supply to consumers, geographically located in remote, hard-to-reach areas. The use of wind power plants is a promising way to solve this problem. The primary task of the design and feasibility study of the use of wind power plants is to predict changes in wind speeds at the site of the power plant installation. The stochastic nature of the wind and its spatiotemporal variability explain the high complexity of this problem, for the solution of which the methods of mathematical modeling are used. The known models of wind speed based on Markov chains, autoregressive moving-average and other discrete models do not allow varying the time step, which does not allow their use for simulation of operating modes of wind turbines and wind energy systems. The article proposes a model of wind speed based on the stochastic differential equation which eliminates this drawback. The aim of the study is to construct wind speed model based on fractional Ornstein–Uhlenbeck process with a periodic long-term mean, which provides modeling of static and dynamic modes of operation of a wind power plant at different time intervals. Methods: mathematical and computer modeling using Matlab/Simulink software environment. Results. The proposed model, in contrast to the known SDE-based models, is able to produce autocorrelated wind speed trajectories with long-term dependence, daily and monthly variations to perform more detailed simulation of the operating modes of wind turbines at different time intervals with the required time step. The model was tested using the data of climatic observations of wind speed obtained from electronic archive of the All-Russian Institute of Hydrometeorological Information. The model adequacy was evaluated by comparing characteristics of simulated wind speed trajectories with actual observations collected at 518 weather stations located on territory of Russia.
Известия Томского по... arrow_drop_down Известия Томского политехнического университета: Инжиниринг георесурсовArticle . 2021Data sources: DOAJadd 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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more_vert Известия Томского по... arrow_drop_down Известия Томского политехнического университета: Инжиниринг георесурсовArticle . 2021Data sources: DOAJadd 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=doajarticles::e530ce82857e33d2db4e6269ec756605&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022Publisher:Институт проблем управления им. В. А. Трапезникова РАН The purpose of this work is to analyze the current projects of the World Energy Agency (IEA) aimed at exploring the potential for reducing the cost of producing new types of biofuels, in terms of methodology, status and first results. As a result, it was revealed that, as a methodological basis, IEA projects use a top-down approach to the analysis of primary data (top-down), the theory of learning curves for forecasting and classical project analysis. Expert surveys, meta-analysis of primary data, and sensitivity analysis of projects are used as the main research methods. The main results of the IEA projects indicate that despite the significant potential for cost reduction in the production of many types of biofuels, it is not possible to achieve price parity with traditional fuels based on hydrocarbons in the medium term. Keywords: bioenergy, cost reduction, biofuel production, project analysis. Целью настоящей работы является анализ текущих проектов Мирового Энергетического Агентства (МЭА), направленных на изучение потенциала для снижения затрат на производство новых видов биотоплива, с точки зрения методологии, статуса и первых результатов. В результате было выявлено, что как методологическую основу проекты МЭА используют нисходящий подход к анализу первичных данных (top-down), теорию кривых обучения для прогнозирования и классический проектный анализ. В качестве основных методов исследования используют экспертные опросы, мета-анализ первичных данных, анализ чувствительности проектов. Основные результаты проектов МЭА свидетельствуют о том, что несмотря на существенный потенциал снижения затрат при производстве многих видов биотоплив, достичь ценового паритета с традиционными видами топлива, основанными на углеводородах, в среднесрочной перспективе не удается. Экономический вестник ИПУ РАН, Выпуск 3 2022, Pages 45-52
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=10.25728/econbull.2022.3.4-sinelnikova&type=result"></script>'); --> </script>
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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=10.25728/econbull.2022.3.4-sinelnikova&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2023Publisher:СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого Ð’ данной работе предÑтавлено проектирование двухÑтажного коттеджа, раÑÑчитанного на 1 Ñемью, Ñ Ð²Ñ‹Ð¿Ð¾Ð»Ð½ÐµÐ½Ð¸ÐµÐ¼ вÑех уÑловий по ÑнергоÑффективноÑти Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ климатичеÑких оÑобенноÑтей района ÑтроительÑтва. Результатами Ð¿Ñ€Ð¾ÐµÐºÑ‚Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ ÑвлÑÑŽÑ‚ÑÑ: 1. BIM модель проектируемого зданиÑ; 2. ТеплотехничеÑкий раÑчет ограждающих конÑтрукций и подбор изолÑционного материала; 3. РаÑчет тепловой характериÑтики Ð·Ð´Ð°Ð½Ð¸Ñ Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ транÑмиÑÑионных теплопотерь; 4. Выбор рекуператора, теплового наÑоÑа и раÑчет зондов; 5. РаÑчет ÑиÑтемы водоÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ Ñбора дождевой воды; 6. РаÑчет и подбор Ñолнечных батарей в качеÑтве дополнительного иÑточника ÑлектропитаниÑ. ÐаÑтоÑÑ‰Ð°Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ð° выполнена в ÑоответÑтвии Ñ Ð½Ð¾Ñ€Ð¼Ð°Ñ‚Ð¸Ð²Ð½Ñ‹Ð¼Ð¸ документами. При напиÑании работы активно иÑпользовалиÑÑŒ Ñовременные информационные технологии, в том чиÑле программное обеÑпечение Autodesk Revit 2022, AutoCAD 2022, Microsoft Word 2016, Excel 2016. This paper presents the design of a two-storey cottage designed for 1 family, with the fulfillment of all conditions for energy efficiency, taking into account the climatic features of the construction area. The design results are: 1. BIM model of the projected building; 2. Thermal engineering calculation of enclosing structures and selection of insulating material; 3. Calculation of the thermal characteristics of the building taking into account transmission heat losses; 4. Selection of recuperator, heat pump and calculation of probes; 5. Calculation of the water supply system taking into account the collection of rainwater; 6. Calculation and selection of solar panels as an additional power source. This work was carried out in accordance with regulatory documents. While writing the work, modern information technologies were actively used, including Autodesk Revit 2022, Autocad 2022, Microsoft Word 2016, Excel 2016 software.
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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.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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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=10.18720/spbpu/3/2023/vr/vr23-4054&type=result"></script>'); --> </script>
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