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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">nuc</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НЯЦ РК</journal-title><trans-title-group xml:lang="en"><trans-title>NNC RK Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7516</issn><issn pub-type="epub">1729-7885</issn><publisher><publisher-name>Национальный ядерный центр Республики Казахстан</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52676/1729-7885-2024-4-5-11</article-id><article-id custom-type="elpub" pub-id-type="custom">nuc-682</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>Статьи</subject></subj-group></article-categories><title-group><article-title>РАЗРАБОТКА ТЕПЛОФИЗИЧЕСКОЙ МОДЕЛИ ЭКСПЕРИМЕНТАЛЬНОЙ СБОРКИ СТЕНДА ВЧГ-135 ДЛЯ ИЗУЧЕНИЯ ВЗАИМОДЕЙСТВИЯ КОРИУМА С МЕТАЛЛАМИОХЛАДИТЕЛЯМИ В УСЛОВИЯХ ТЯЖЕЛОЙ АВАРИИ</article-title><trans-title-group xml:lang="en"><trans-title>DEVELOPMENT OF A THERMOPHYSICAL MODEL FOR THE EXPERIMENTAL ASSEMBLY OF THE VCG-135 TEST BENCH TO STUDY THE INTERACTION OF CORIUM WITH METAL-COOLER IN THE CONDITIONS OF A SEVERE ACCIDENT</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>Скаков</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Skakov</surname><given-names>M. К.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">skakov@nnc.kz</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8731-363X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Толеубеков</surname><given-names>К. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Toleubekov</surname><given-names>K. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов; Семей</p></bio><bio xml:lang="en"><p>Kurchatov; Semey</p></bio><email xlink:type="simple">toleubekov@nnc.kz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бекмулдин</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Bekmuldin</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">bekmuldin@nnc.kz</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акаев</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Akaev</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курчатов</p></bio><bio xml:lang="en"><p>Kurchatov</p></bio><email xlink:type="simple">akaev@nnc.kz</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">РГП «Национальный ядерный центр Республики Казахстан»<country>Казахстан</country></aff><aff xml:lang="en">RSE “National Nuclear Center of the Republic of Kazakhstan”<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Филиал «Институт атомной энергии» РГП НЯЦ РК; Университет имени Шакарима города Семей<country>Казахстан</country></aff><aff xml:lang="en">Branch “Institute of Atomic Energy” NNC RK; Shakarim University of Semey City<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Филиал «Институт атомной энергии» РГП НЯЦ РК<country>Казахстан</country></aff><aff xml:lang="en">Branch “Institute of Atomic Energy” NNC RK<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>4</issue><fpage>5</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Скаков М.К., Толеубеков К.О., Бекмулдин М.К., Акаев А.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Скаков М.К., Толеубеков К.О., Бекмулдин М.К., Акаев А.С.</copyright-holder><copyright-holder xml:lang="en">Skakov M.К., Toleubekov K.O., Bekmuldin M.K., Akaev A.S.</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://journals.nnc.kz/jour/article/view/682">https://journals.nnc.kz/jour/article/view/682</self-uri><abstract><p>В настоящей статье приведены результаты моделирования температурного поля экспериментальной сборки стенда ВЧГ-135 для изучения взаимодействия модельного кориума с кандидатными металлами-охладителями (цинк, сурьма и марганец) в условиях тяжелой аварии АЭС.</p><p>Необходимость моделирования обусловлена вероятностью плавления металла в устройстве сброса за счет теплового потока от нагревающегося тигля экспериментального устройства. Таким образом, цель моделирования заключалась в обосновании целостности конструкции устройства сброса металла во время получения жидкого кориума в тигле экспериментального устройства.</p><p>Теплофизическая модель была разработана в программном комплексе ANSYS. Анализ полученных результатов показывает, что металл в устройстве сброса не достигнет точки плавления. В связи с этим, устройство сброса экспериментальной сборки может быть использовано в текущем конструкционном виде при проведении экспериментов на стенде ВЧГ-135.</p><p>В тоже время, после экспериментов была проведена валидация теплофизической модели путем сравнения расчетных значений температуры с экспериментальными данным. Валидация модели показывает, что отклонение расчетных и экспериментальных значений температур в контрольных точках не превышают допустимых пределов (плавление исследуемого металла перед взаимодействием с кориумом). Таким образом, разработанная теплофизическая модель может быть использована при обосновании дальнейших экспериментов на стенде ВЧГ-135 с текущей экспериментальной сборкой.</p></abstract><trans-abstract xml:lang="en"><p>This article presents the results of modeling of the temperature field of the experimental assembly of the VCG-135 test bench to study the interaction between model corium and candidate metal-coolers (zinc, antimony and manganese) in the conditions of a severe accident.</p><p>The need for modeling is associated with the probability of metal melting in the discharge device due to the heat flow from the heating crucible of the experimental assembly. Thus, the purpose of the modeling was the justification of the integrity of the design of the metal discharge device during the production of liquid corium in the crucible of the experimental assembly.</p><p>The thermophysical model was created in the ANSYS software. The temperature field of the experimental assembly was obtained at the moment of obtaining liquid corium as a result of the modeling. An analysis of the results showed that metal in the discharge device wouldn’t reach the melting point. In this regard, the discharge device of the experimental assembly can be used in its current design for experiments conducting at the VCG-135 test bench.</p><p>At the same time, after the experiments, the thermophysical model was validated by comparing the calculated temperature values with experimental data. Validation of the model shows that the deviation of calculated and experimental temperature values at control points does not exceed acceptable limits (melting of the studied metal before interaction with corium). Thus, the developed thermophysical model can be used to justify further experiments on the VCG-135 test bench with the current experimental assembly.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тяжелая авария</kwd><kwd>кориум</kwd><kwd>ловушка расплава</kwd><kwd>металл–охладитель</kwd><kwd>стенд ВЧГ-135</kwd><kwd>ANSYS</kwd><kwd>моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>severe accident</kwd><kwd>corium</kwd><kwd>core catcher</kwd><kwd>metal-cooler</kwd><kwd>VCG-135 test bench</kwd><kwd>ANSYS</kwd><kwd>modeling</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>This research was funded by the Ministry of Energy of the Republic of Kazakhstan within the framework of the scientific-technical program “Nuclear power engineering development in the Republic of Kazakhstan” (BR24792713).</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">Journeau, C., Bouyer, V., Cassiaut-Louis, N. and et.al. 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