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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8358-2020-65-4-496-505</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-636</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>ДИАГНОСТИКА И БЕЗОПАСНОСТЬ ТЕХНИЧЕСКИХ И ПРИРОДНЫХ СИСТЕМ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DIAGNOSTICS AND SAFETY OF TECHNICAL AND ENVIRONMENT SYSTEMS</subject></subj-group></article-categories><title-group><article-title>Расчет характеристик пассивного каталитического рекомбинатора водорода в условиях аварии на АЭС-2006</article-title><trans-title-group xml:lang="en"><trans-title>Passive autocatalitic recombiner characteritics calculation during severe accident on AES-2006 NPP</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>Сорокин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сорокин Владимир Владимирович – доктор технических наук, доцент, заведующий лабораторией</p><p>а/я 119, 220109, Минск</p></bio><bio xml:lang="en"><p>Vladimir V. Sorokin – D. Sc. (Engineering), Associate Professor, Head of the Laboratory</p><p>p/o box 119, 220109, Minsk</p></bio><email xlink:type="simple">sorokin.npp@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Объединенный институт энергетических и ядерных исследований – Сосны, Национальной академии наук&#13;
Беларуси</institution></aff><aff xml:lang="en"><institution>Joint Institute for Power and Nuclear Research – Sosny of the National Academy of&#13;
Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2020</year></pub-date><volume>65</volume><issue>4</issue><elocation-id>496–505</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Сорокин В.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Сорокин В.В.</copyright-holder><copyright-holder xml:lang="en">Sorokin V.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://vestift.belnauka.by/jour/article/view/636">https://vestift.belnauka.by/jour/article/view/636</self-uri><abstract><p>Выполнен расчет параметров работы системы удаления водорода в условиях тяжелой аварии на АЭС-2006. Система включает пассивные автокаталитические рекомбинаторы водорода, которые превращают водород в воду в ходе реакции с кислородом воздуха на катализаторе и обеспечивают подвод реагентов и отвод продуктов за счет естественной конвекции. Разработана расчетная модель рекомбинатора с блоком катализатора (основной матери- ал катализатора – платина с долей палладия) в форме пластин. Два свободных параметра модели – скорость реакции на катализаторе и гидравлическое сопротивление – устанавливаются на основе экспериментальных данных. Определены характеристики пассивного каталитического рекомбинатора водорода в условиях аварии. Производительность устройства в условиях аварии соответствует заявленной производителем. Температура катализатора, даже средняя по поверхности, выше 500 °С, температура выхлопной струи превышает 150 °С, содержание водорода в выхлопной струе значительно. Производительность рекомбинатора водорода линейно увеличивается с ростом объемного содержания водорода в газовой смеси, поступающей в устройство. Суммарная производительность рекомбинаторов водорода в со- ставе локализующей системы безопасности постоянна в условиях как равномерной, так и неравномерной концентрации водорода под герметичным ограждением. Влияние температуры атмосферы на производительность незначительно. Данные расчетов могут использоваться для оценки работы рекомбинаторов водорода при аварии на АЭС-2006.</p></abstract><trans-abstract xml:lang="en"><p>A modern NPP is equipped by containment to hold radioactive substances and ionizing radiation bounded as design margins prescribe. Hydrogen mitigation system is used to protect containment against hydrogen fire and detonation. The system includes a scope of passive autocatalitic recombiners. Hydrogen is transformed into water, passing through said recombiners. The reaction occurs on catalyst surface. The main catalyst material is a palladium doped platinum. Hydrogen mitigation system parameters during severe accident are of interest. Wise admitted for NPP full scale tests are impossible, so the main analysis are calculations. Recombiner consists of catalytic block and stuck. The stuck provides reagents feeding and products evacuation enhancing natural convection transport. A model for calculations is suggested for recombiner with a plate-type catalyst block. The two free parameters of the model are chemical reaction intensity on catalyst and unit drag. Said parameters are estimated experimental data based on. Passive autocatalitic recombiner characteritics during severe ac- cident on AES-2006 NPP are calculated. The unit capacity is found not less that specification points. Catalyst temperatures, even the mean one, are above 500 °С, exhaust jet temperature exceeds 150 °С. Hydrogen content is high in the jet. Capacity increases linearly with hydrogen concentration at the unit entrance. Atmospheric temperature influence is low. Hydrogen mitigation system overall capacity is constant for uniform or not uniform hydrogen distribution in the containment. The calculated data may be used for recombiner work estimation during accident on AES-2006 NPP.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>АЭС</kwd><kwd>ВВЭР</kwd><kwd>тяжелые аварии</kwd><kwd>водородная безопасность</kwd><kwd>локализующая система безопасности</kwd><kwd>система удаления водорода</kwd><kwd>каталитические рекомбинаторы</kwd><kwd>пластинчатые каталитические элементы</kwd><kwd>производительность</kwd><kwd>расчеты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>NPP</kwd><kwd>WWER</kwd><kwd>severe accidents</kwd><kwd>hydrogen mitigation system</kwd><kwd>containment</kwd><kwd>passive autocatalitic recombiner</kwd><kwd>plate-type catalytic elements</kwd><kwd>capacity</kwd><kwd>calculations</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">Обеспечение водородной безопасности АЭС с ВВЭР-1000/ В. В. 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