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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">probener</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИ</journal-title><trans-title-group xml:lang="en"><trans-title>Power engineering: research, equipment, technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-9903</issn><issn pub-type="epub">2658-5456</issn><publisher><publisher-name>Kazan State Power Engineering  University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30724/1998-9903-2026-28-2-172-186</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-3889</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ТЕОРЕТИЧЕСКАЯ И ПРИКЛАДНАЯ ТЕПЛОТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORETICAL AND APPLIED HEAT ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Повышение энергоэффективности поршневого двигателя, работающего на синтез-газе, путем доводки рабочего цикла</article-title><trans-title-group xml:lang="en"><trans-title>Improving the energy efficiency of a piston engine powered by synthesis gas by fine-tuning the operating cycle</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4481-3607</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Плотников</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Plotnikov</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Плотников Леонид Валерьевич – д-р техн. наук, профессор кафедры «Турбины и двигатели» </p></bio><bio xml:lang="en"><p>Leonid V. Plotnikov</p></bio><email xlink:type="simple">leonplot@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Красильников</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasilnikov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Красильников Дмитрий Николаевич – магистрант кафедры «Турбины и двигатели»</p></bio><bio xml:lang="en"><p>Dmitry N. Krasilnikov</p></bio><email xlink:type="simple">dima_krasilnikov_2017@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Davydov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давыдов Данил Алексеевич – аспирант кафедры «Турбины и двигатели»</p></bio><bio xml:lang="en"><p>Danil A. Davydov </p></bio><email xlink:type="simple">dda_2003@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыжков</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryzhkov</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рыжков Александр Филиппович – д-р техн. наук, заведующий лабораторией новых энергетических технологий </p></bio><bio xml:lang="en"><p>Alexander F. Ryzhkov </p></bio><email xlink:type="simple">a.f.ryzhkov@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шурупов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shurupov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шурупов Владислав Александрович – аспирант кафедры «Турбины и двигатели</p></bio><bio xml:lang="en"><p>Vladislav A. Shurupov</p></bio><email xlink:type="simple">shurupov.vladislav@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after the first President of Russia B.N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>14</day><month>06</month><year>2026</year></pub-date><volume>28</volume><issue>2</issue><fpage>172</fpage><lpage>186</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Плотников Л.В., Красильников Д.Н., Давыдов Д.А., Рыжков А.Ф., Шурупов В.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Плотников Л.В., Красильников Д.Н., Давыдов Д.А., Рыжков А.Ф., Шурупов В.А.</copyright-holder><copyright-holder xml:lang="en">Plotnikov L.V., Krasilnikov D.N., Davydov D.A., Ryzhkov A.F., Shurupov V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.energyret.ru/jour/article/view/3889">https://www.energyret.ru/jour/article/view/3889</self-uri><abstract><p>АКТУАЛЬНОСТЬ исследования обусловлена тем, что улучшение эффективных, экономических и экологических показателей поршневых двигателей (ДВС), работающих на альтернативных газообразных топливах, остается важной задачей для развития машиностроения и энергетики. Поэтому создание математических моделей рабочего цикла ДВС, работающих на разных газах, и повышение их энергоэффективности является актуальным для науки, техники и технологий. ЦЕЛЬ исследования состояла в повышении КПД и энергоэффективности электрогенератора на базе ДВС путем оптимизации параметров его рабочего цикла после замены базового топлива (пропан-бутана) на синтез-газ на основе численного моделирования. МЕТОДЫ. Объектом исследования был электрогенератор мощностью 1 кВт на базе одноцилиндрового ДВС с внешним смесеобразованием. В статье описываются основные подходы к созданию математической модели рабочего цикла двигателя, физико-химические свойства базового топлива (пропан-бутан) и нового лабораторного синтез-газа. Результаты моделирования верифицируются посредством экспериментальных исследований. Отличия между моделированием и опытами для ключевых параметров (мощность, КПД, расход воздуха и топлива) не превышали 4,0 %. КПД ДВС был выбран в качестве ключевого критерия оптимизации рабочего цикла. РЕЗУЛЬТАТЫ. Получены данные об эксплуатационных показателях ДВС, работающего на пропан-бутане и синтез-газе, для разных показателей рабочего цикла (степень сжатия, коэффициент избытка воздуха, угол опережения зажигания, сопротивление системы газообмена) на основе математического моделирования. ЗАКЛЮЧЕНИЕ. Показано, что замена топлива с пропан-бутана на синтез-газ вызывает снижение КПД двигателя до 33 % (КПД двигателя составлял 0,179 и 0,119 для ДВС, работающих на пропан-бутане и синтез-газе, соответственно, при мощности электрогенератора равной 0,59 кВт). После оптимизации КПД двигателя на синтез-газе стало выше на 6,1 % по сравнению с ДВС, работающем на пропан-бутане, а падение мощности не превышало 8 %. Таким образом, оптимизация параметров рабочего цикла способствует достижению значений КПД и энергоэффективности двигателя на синтез-газе, сравнимых с эффективностью ДВС, функционирующих на традиционных видах топлива.</p></abstract><trans-abstract xml:lang="en"><p>RELEVANCE of the study is since improving the efficient, economic and environmental performance of reciprocating engines (ICE) powered by alternative gaseous fuels remains an important task for the development of mechanical engineering and energy. Therefore, the creation of mathematical models of the working cycle of ICEs operating on different gases and improving their energy efficiency is relevant for science, technology and technology. The PURPOSE of the study was to increase the efficiency and energy efficiency of an ICE-based electric generator by optimizing its operating cycle parameters after replacing the base fuel (propane-butane) with synthesis gas based on numerical modeling. METHODS. The object of the study was a 1 kW electric generator based on a single-cylinder ICE with external mixing. The article describes the main approaches to creating a mathematical model of the engine operating cycle, the physicochemical properties of the base fuel (propane-butane) and a new laboratory synthesis gas. The simulation results are verified through experimental studies. The differences between simulation and the experiments for the key parameters (power, efficiency, air and fuel consumption) did not exceed 4.0%. The efficiency of the ICE was chosen as a key criterion for optimizing the operating cycle. RESULTS. Data on the performance of an ICE powered by propane-butane and synthesis gas for different operating cycle parameters (compression ratio, excess air ratio, ignition timing angle, gas exchange system resistance) were obtained based on mathematical modeling. CONCLUSION. It is shown that replacing propane-butane fuel with synthesis gas causes a decrease in engine efficiency of up to 33% (the efficiency of the basic ICE was 0.179 versus an efficiency equal to 0.119 for the efficiency of the converted ICE for a power of 0.59 kW). As a result of optimization, the efficiency of the converted syngas engine was 6.1% higher than that of the base propane-butane ICE, and the power drop did not exceed 8%. Thus, careful refinement of the operating cycle parameters makes it possible to increase the energy efficiency of a synthesis gas engine to the level of an ICE running on traditional fuels.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электрогенератор</kwd><kwd>двигатель</kwd><kwd>КПД и энергоэффективность</kwd><kwd>пропан-бутан</kwd><kwd>синтез-газ</kwd><kwd>оптимизация</kwd><kwd>математическое моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electric generator</kwd><kwd>engine</kwd><kwd>efficiency and energy effectiveness</kwd><kwd>propane-butane</kwd><kwd>syngas</kwd><kwd>optimization</kwd><kwd>numerical modeling</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Министерства науки и высшего образования Российской Федерации в рамках Программы развития Уральского федерального университета имени первого Президента России Б.Н. Ельцина в соответствии с программой стратегического академического лидерства «Приоритет-2030».</funding-statement><funding-statement xml:lang="en">The research funding from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Longwic R. Diesel Engine Operations with Alternative Fuels. USA: CRC Press. 2024. 86 р.</mixed-citation><mixed-citation xml:lang="en">Longwic R. Diesel Engine Operations with Alternative Fuels. USA: CRC Press. 2024. 86 р.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">de Oliveira Gonçalves F., Savioli Lopes M., Savioli Lopes E., Maciel Filho R. 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