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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">10.30724/1998-9903-2018-20-7-8-23-34</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-642</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>ЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ ТЕПЛОГИДРАВЛИЧЕСКИХ И НЕЙТРОННО-ФИЗИЧЕСКИХ  ХАРАКТЕРИСТИК ПЕРСПЕКТИВНЫХ ТЕПЛОВЫДЕЛЯЮЩИХ СБОРОК ДЛЯ  РЕАКТОРНЫХ УСТАНОВОК МАЛОЙ МОЩНОСТИ</article-title><trans-title-group xml:lang="en"><trans-title>INVESTIGATION OF THERMOHYDRAULIC AND NEUTRON -PHYSICAL  CHARACTERISTICS OF PERSPECTIVE FUEL ASSEMBLY FOR LOW-POWER  REACTOR FACILITY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0989-1212</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сморчкова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smorchkova</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сморчкова Юлия Владимировна – ассистент кафедры «Общая физика и ядерный синтез» НИУ «МЭИ» (диссертант)</p></bio><bio xml:lang="en"><p>Yuliya V. Smorchkova – assistant of the Department of General Physics and Nuclear Fusion NRU “MPEI”</p></bio><email xlink:type="simple">SmorchkovaYV@mpei.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>Авдонина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Avdonina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Авдонина Евгения Александровна – студент (магистр) кафедры «Общая физика и ядерный синтез» НИУ «МЭИ»</p></bio><bio xml:lang="en"><p>Evgeniya A. Avdonina – student (master) of the Department of General Physics and Nuclear Fusion NRU “MPEI”</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>Дедов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dedov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дедов Алексей Викторович – чл.-корр. РАН, д-р техн. наук, заведующий кафедрой «Общая физика и ядерный синтез» НИУ «МЭИ»</p></bio><bio xml:lang="en"><p>Alex V. Dedov – member corr. RAS, Doctor of Technical Sciences, Head of the Department of General Physics and Nuclear Fusion NRU “MPEI”</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский университет «МЭИ», г. Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University “MPEI”, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>07</day><month>09</month><year>2018</year></pub-date><volume>20</volume><issue>7-8</issue><fpage>23</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сморчкова Ю.В., Авдонина Е.А., Дедов А.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Сморчкова Ю.В., Авдонина Е.А., Дедов А.В.</copyright-holder><copyright-holder xml:lang="en">Smorchkova Y.V., Avdonina E.A., Dedov A.V.</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/642">https://www.energyret.ru/jour/article/view/642</self-uri><abstract><p>В работе представлены результаты численного исследования гидродинамики и температурного поля в модели тепловыделяющей сборки для реакторной установки КЛТ-40С при переходе к топливу, состоящему из микротвэлов. Предложена оптимальная, с позиции гидродинамики и теплообмена, конструкция модели тепловыделяющей сборки с микротвэлами для реакторной установки КЛТ-40С, которая по габаритным размерам полностью соответствует традиционной сборке со стрежневыми тепловыделяющими элементами. Определены оптимальные параметры перфорации чехлов, удерживающих засыпку микротвэлов. Представлены результаты оценки нейтронно-физических характеристик. Показана работоспособность реакторной установки КЛТ-40С при использовании топлива из микротвэлов.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of a numerical study of hydrodynamics and a temperature field in the model of the fuel assembly for the KLT-40S reactor installation in the transition to a fuel consisting of spherical microfuels. The optimal design of a model of a f uel assembly with microfuels for a reactor installation KLT-40S is proposed, from the position of hydrodynamics and heat transfer. The fuel assembly by external dimensions completely corresponds to the traditional assembly with rod fuel elements. The optim al parameters of the perforation of the covers that retain the pebble bed of microfuels are determined. The results of the evaluation of neutron-physical characteristics are presented. The working capacity of the KLT-40S reactor installation is shown when using fuel from microfuel elements.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидродинамика</kwd><kwd>температурное поле</kwd><kwd>микротвэлы</kwd><kwd>тепловыделяющая сборка</kwd><kwd>шаровая засыпка</kwd><kwd>численное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrodynamics</kwd><kwd>temperature field</kwd><kwd>microfuels</kwd><kwd>fuel assembly</kwd><kwd>pebble bed</kwd><kwd>numerical  simulation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">грант  Правительства  Российской  Федерации № 14.z50.31.0042.</funding-statement><funding-statement xml:lang="en">Grant of the Government of the Russian Federation  № 14.z50.31.0042.</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">Пономарев-Степной Н.Н., Кухаркин Н.Е., Хрулев А.А., Дегальцев Ю.Г. и др. 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