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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">alternative</journal-id><journal-title-group><journal-title xml:lang="ru">Альтернативная энергетика и экология (ISJAEE)</journal-title><trans-title-group xml:lang="en"><trans-title>Alternative Energy and Ecology (ISJAEE)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-8298</issn><publisher><publisher-name>Международный издательский дом научной периодики "Спейс</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15518/isjaee.2023.05.032-044</article-id><article-id custom-type="elpub" pub-id-type="custom">alternative-2256</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>II. НЕВОЗОБНОВЛЯЕМАЯ ЭНЕРГЕТИКА 9. Атомная энергетика</subject></subj-group></article-categories><title-group><article-title>Исследование эффективности процесса горения водород-кислородной смеси при различных давлениях и избытке окислителя на основе экспериментально-теоретического исследования</article-title><trans-title-group xml:lang="en"><trans-title>Investigation on combustion efficiency of the hydrogen oxygen mixture at various pressures and excess oxidizer based on experimental and theoretical studies</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аминов</surname><given-names>Р. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Aminov</surname><given-names>R. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аминов Рашид Зарифович - руководитель</p><p>410028, Россия, Саратов, ул. Рабочая, д. 24</p><p>Тел.: (845-2)27-14-36, (845-2)23-45-10</p></bio><bio xml:lang="en"><p>Aminov Rashid Zarifovich - head</p><p>410028, Russia, Saratov, st. Rabochaya 24</p><p>Tel. (845-2) 27-14-36, fax (845-2) 27-14-36</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Егоров</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Egorov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Егоров Александр Николаевич - старший научный сотрудник</p><p>410028, Россия, Саратов, ул. Рабочая, д. 24</p><p>Тел.: (845-2)27-14-36, (845-2)23-45-10</p></bio><bio xml:lang="en"><p>Egorov Alexander Nikolaevich - senior researcher</p><p>410028, Russia, Saratov, st. Rabochaya 24</p><p>Tel. (845-2) 27-14-36, fax (845-2) 27-14-36</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Счастливцев</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Schastlivtsev</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Счастливцев Алексей Иванович - Старший научный сотрудник</p><p>125412, Россия, Москва, ул. Ижорская, д. 13, стр. 2</p><p>Тел.: (495) 485-8244, (495) 485-9009</p></bio><bio xml:lang="en"><p>Schastlivtcev Aleksey Ivanovich - Senior Researcher</p><p>125412, Russia, Moscow, st. Izhorskaya, 13, building 2</p><p>Tel: (495) 485-8244, (495) 485-9009</p></bio><email xlink:type="simple">zeigarnik@ihed.ras.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный исследовательский центр «Саратовский научный центр» РАН<country>Россия</country></aff><aff xml:lang="en">Federal Research Center «Saratov Scientific Center of the Russian Academy of Sciences»<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Объединенный институт высоких температур РАН<country>Россия</country></aff><aff xml:lang="en">Joint Institute of High Temperatures RAS<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>5</issue><fpage>32</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Международный издательский дом научной периодики "Спейс, 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Международный издательский дом научной периодики "Спейс</copyright-holder><copyright-holder xml:lang="en">Международный издательский дом научной периодики "Спейс</copyright-holder><license xlink:href="https://www.isjaee.com/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.isjaee.com/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.isjaee.com/jour/article/view/2256">https://www.isjaee.com/jour/article/view/2256</self-uri><abstract><p>Одним из путей повышения эффективности энергоустановок, в том числе на АЭС, может стать использование в их составе водородных энергетических комплексов и водородно-кислородных парогенераторов. Это может осуществляться путем производства водорода и кислорода методом электролиза и их дальнейшего использования в технологических схемах энергоблоков в виде тепловой энергии. Основополагающим при оценке эффективности такого использования водородных технологий является эффективность сжигания водорода в кислородной среде при различных схемно-параметрических условиях. В данной работе исследованы процессы горения с точки зрения оценки эффективности сгорания водородно-кислородной смеси при различных давлениях и избытке окислителя. Для этого на основе экспериментальных данных, полученных на 4-х секционной жаровой трубе, была верифицирована расчетная модель процессов горения водородно-кислородной смеси, в том числе тепломассообмена в граничных условиях эксперимента. Показано, что увеличение давления продуктов сгорания приводит к заметному уменьшению недожога водорода. Максимальный эффект наблюдается в третьей секции жаровой трубы (уменьшение на 56.72%), а минимальный – в первой секции (уменьшение на 7.58%). При этом среднее удельное снижение недожога водорода в сечениях I-IV жаровой трубы в пределах рассматриваемого давления составило 8.13, 17.41 и 31.34 %/МПа соответственно. Увеличение избытка окислителя приводит к закономерному уменьшению недожога водорода. При этом максимальное снижение достигается при степени избытка окислителя равной 2 в третьей секции жаровой трубы (снижение на 58.86 %). В то же время наблюдается усиление положительного эффекта от повышения давления. При этом в первых двух секциях жаровой трубы наблюдается наибольшая зависимость от увеличения коэффициента избытка окислителя. Максимальное относительное снижение недожога водорода достигается при давлении 6 МПа и составляет 24.46% и 43.5% при степени избытка окислителя 1.5 и 2 соответственно.</p></abstract><trans-abstract xml:lang="en"><p>One of the ways to improve the efficiency of power plants, including nuclear power plants, can be the use of hydrogen energy complexes and hydrogen-oxygen steam generators in their composition. This is done by electrolysis production of hydrogen and oxygen and their further use in technological schemes of power units in the form of thermal energy. Fundamental in assessing the efficiency of such use of hydrogen technologies is the efficiency of hydrogen combustion in oxygen medium under different schematic-parametric conditions. In this paper combustion processes were studied in terms of evaluating efficiency of the hydrogen-oxygen mixture combustion at various pressures and an oxidizer excess. For this purpose, a calculation model of combustion processes of the hydrogen-oxygen mixture, including heat and mass transfer under the boundary conditions of the experiment was verified on the basis of the experimental data, obtained at 4-section flame tube. Has shown that increasing the pressure of the combustion products leads to a noticeable decrease in hydrogen underburning. The maximum effect is observed in the third section of the flame tube (a reduction by 56.72%), and the minimum effect is found in the first section (a reduction by 7.58%). In this case, the average specific reduction in hydrogen underburning in sections I-IV of the flame tube within the considered pressure ranged between 8.13, 17.41, and 31.34%/MPa, respectively. An increase in an oxidizer excess lead to a regular decrease in hydrogen underburning. In this case, the maximum decrease in hydrogen underburning is achieved with an oxidizer excess ratio of 2 in the third section of the flame tube (a reduction by 58.86%). At the same time, an increase in the positive effect of increasing pressure is observed. In this case, in the first two sections of the flame tube, the greatest dependence on the increase of an oxidizer excess ratio is observed. Thus, the maximum relative reduction in hydrogen underburning is achieved at the pressure of 6 MPa, and as a result amounts to 24.46% and 43.5% with the oxidizer excess ratio at 1.5 and 2, respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>водородная энергетика</kwd><kwd>недожог топлива</kwd><kwd>избыток окислителя</kwd><kwd>эффективность сгорания</kwd><kwd>вычислительная гидродинамика</kwd><kwd>модель рассеяния вихрей</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrogen power</kwd><kwd>underburning</kwd><kwd>excess oxidizer</kwd><kwd>combustion efficiency</kwd><kwd>computational fluid dynamics</kwd><kwd>vortex dispersion model</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">. Locatelli G., Boarin S., Fiordaliso A., Ricotti M.E. Load following of Small Modular Reactors (SMR) by cogeneration of hydrogen: A techno-economic analysis // Energy. 2018. 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