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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">10.29235/1561-8358-2024-69-2-151-165</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-840</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>Анализ водородной взрывобезопасности АЭС с реактором типа ВВЭР-1200/491 при протекании тяжелой запроектной аварии</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of the hydrogen safety of the NPP with a VVER-1200/V-491 reactor in a severe beyond design based 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>Третинников</surname><given-names>Д. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Tretinnikov</surname><given-names>D. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Третинников Денис Леонидович – старший научный сотрудник</p><p>Луговослободской с/с, р-н д. Прилесье, 47/22, 223063, Минский район, Минская область</p></bio><bio xml:lang="en"><p>Denis L. Tretinnikov – Senior Researcher</p><p>47/22, Lugovoslobodskaya village, 223063, District of the Prilesye village, Minsk District, Minsk Region</p></bio><email xlink:type="simple">trdl@list.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>Дойникова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Doinikova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дойникова Анастасия Вячеславовна – научный сотрудник</p><p>Луговослободской с/с, р-н д. Прилесье, 47/22, 223063, Минский район, Минская область</p></bio><bio xml:lang="en"><p>Anastasiya V. Doinikova – Researcher</p><p>47/22, Lugovoslobodskaya village, 223063, District of the Prilesye village, Minsk District, Minsk Region</p></bio><email xlink:type="simple">sirius1991dav_asa@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>Нагула</surname><given-names>П. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Nagula</surname><given-names>P. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нагула Петр Константинович – кандидат технических наук, заведующий лабораторией</p><p>Луговослободской с/с, р-н д. Прилесье, 47/22, 223063, Минский район, Минская область</p></bio><bio xml:lang="en"><p>Petr K. Nagula – Cand. Sci. (Engineering), Head of the Laboratory</p><p>47/22, Lugovoslobodskaya village, 223063, District of the Prilesye village, Minsk District, Minsk Region</p></bio><email xlink:type="simple">nagulapk@mail.ru</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 Беларуси</institution></aff><aff xml:lang="en"><institution>Joint Institute for Power and Nuclear Research – Sosny of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2024</year></pub-date><volume>69</volume><issue>2</issue><fpage>151</fpage><lpage>165</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Третинников Д.Л., Дойникова А.В., Нагула П.К., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Третинников Д.Л., Дойникова А.В., Нагула П.К.</copyright-holder><copyright-holder xml:lang="en">Tretinnikov D.L., Doinikova A.V., Nagula P.K.</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/840">https://vestift.belnauka.by/jour/article/view/840</self-uri><abstract><p>Представлены результаты расчетного анализа с помощью программного средства COCOSYS возможных режимов горения водородсодержащей паровоздушной смеси в объеме, ограниченном герметичным ограждением, при протекании тяжелой запроектной аварии (ЗПА). В качестве объекта исследования рассмотрена защитная оболочка энергоблока АЭС с реакторной установкой типа ВВЭР-1200/В-491. Исходным событием исследуемой тяжелой запроектной аварии (ЗПА) с течью теплоносителя принят отрыв трубопровода впрыска системы компенсации давления (Ду179), при этом накладывалось условие одновременного отказа всех активных каналов системы аварийного охлаждения активной зоны реактора. Рассчитаны параметры термодинамического состояния (давление и температура) газовой смеси, а также значения концентрационного распределения водорода в атмосфере под защитной оболочкой. Полученные результаты расчета распространения, накопления водорода и изменения параметров среды использованы для анализа возможных режимов горения в помещениях с использованием трехкомпонентной диаграммы Шапиро–Моффетти. Результаты показали, что при исследуемой тяжелой ЗПА детонация водородсодержащей смеси исключается, а дефлаграция возможна только в боксе парогенераторов, в котором происходит разрыв трубопровода. Таким образом, водородная взрывобезопасность на атомной станции согласно «Правилам обеспечения водородной взрывозащиты на атомных электростанциях с реакторами типа ВВЭР» считается обеспеченной. Эффективность функционирования системы удаления водорода из защитной оболочки с помощью каталитической рекомбинации для рассматриваемой ЗПА принимается достаточной.</p></abstract><trans-abstract xml:lang="en"><p>The results of a computational analysis of possible modes of combustion of a hydrogen-air mixture in containment during the evolution of a severe beyond design basis accident (BDBA) with the COCOSYS code are presented. The containment of the NPP with a VVER-1200/V-491 reactor was selected as the object of study. BDBA with loss of coolant occurs due to a break of the injection pipeline of the pressurizer system (LOCA DN179) and the simultaneous failure of all active channels of the emergency core cooling system (ECCS). The calculated parameters of the thermodynamic state (pressure and temperature) of the gas mixture are given, and the values of the concentration distribution of hydrogen inside the containment are presented. After calculating the hydrogen distribution and mixing in all compartments of the containment, an evaluation was made of the flammability of the mixture and the potential for self-ignition in the containment by using a three-component Shapiro-Moffette diagram. It was concluded that in BDBA (LOCA DN179 with failure of active ECCS) detonation of the hydrogen-containing mixture is excluded, and deflagration is possible only in the emergency compartment of steam generators with a pipeline break. Thus, the hydrogen risk mitigation has been achieved in accordance with the standards established by the Belarusian regulator, provided that the localization safety systems are operational in the event of hydrogen deflagration. And the efficiency of the hydrogen removal system from the containment using catalytic recombination is considered sufficient for the considered BDBA.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерное моделирование</kwd><kwd>атомная электростанция</kwd><kwd>защитная оболочка</kwd><kwd>тяжелая авария</kwd><kwd>водородная безопасность</kwd><kwd>горение</kwd><kwd>пассивный каталитический рекомбинатор водорода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computer simulation</kwd><kwd>nuclear power plant</kwd><kwd>containment</kwd><kwd>severe accident</kwd><kwd>hydrogen safety</kwd><kwd>combustion</kwd><kwd>passive autocatalytic hydrogen recombiner</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">Анализ причин и последствий аварии на АЭС Fukushima как фактор предотвращения тяжелых аварий в корпусных реакторах / В. И. Скалозубов [и др.]; под ред. В. И. Скалозубова. – Чернобыль: Ин-т проблем безопасности АЭС НАН Украины, 2012. – 280 с.</mixed-citation><mixed-citation xml:lang="en">Skalozubov V. I., Kljuchnikov A. A., Vashhenko V. N., Jarovoj S. S. Analysis of the Causes and Consequences of the Accident at the Fukushima NPP as a Factor in the Prevention of Severe Accidents in Pressurized Reactors. Chernobyl, Institute of NPP Safety Problems of the National Academy of Sciences of Ukraine, 2012. 280 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Обеспечение водородной безопасности на атомных электростанциях с водоохлаждаемыми реакторными установками. Современное состояние проблемы / И. А. Кириллов [и др.] // Ядерная и радиационная безопасность. – 2017. – № 2 (84). – 26–37.</mixed-citation><mixed-citation xml:lang="en">Kirillov I. A., Kharitonova N. L., Sharafutdinov R. B., Khrennikov N. N. Hydrogen safety for nuclear power plants with light water reactor units. Current state of the problem. Yadernaya i radiatsionnaya bezopasnost’ = Nuclear and Radiation Safety, 2017, no. 2, pp. 26–37 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Meynet, N. Numerical study of hydrogen ignition by passive autocatalytic recombiners / N. Meynet, A. Bentaib // Nucl. Technol. – 2012. – Vol. 178, № 1. – P. 17–28. https://doi.org/10.13182/NT12-A13544</mixed-citation><mixed-citation xml:lang="en">Meynet N., Bentaib A. Numerical study of hydrogen ignition by passive autocatalytic recombiners. Nuclear Technology, 2012, vol. 178, no. 1, pp. 17–28. https://doi.org/10.13182/NT12-A13544</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Experimental study of effect of ambient flow condition on the performance of as passive autocatalytic recombiner / Z. Liang [et al.] // Nucl. Eng. Design. – 2016. – Vol. 301. – P. 49–58. https://doi.org/10.1016/j.nucengdes.2016.03.005</mixed-citation><mixed-citation xml:lang="en">Liang Z., Gardner L., Clouthier T., Thomas B. Experimental study of effect of ambient flow condition on the performance of as passive autocatalytic recombiner. Nuclear Engineering and Design, 2016, vol. 301, pp. 49–58. https://doi.org/10.1016/j.nucengdes.2016.03.005</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">A large-scale study on the effect of ambient conditions on hydrogen recombiner-induced ignition / L. Gardner [at al.] // Int. J. Hydrog. Energy. – 2021. – Vol. 46, iss. 23. – P. 12594–12604. https://doi.org/10.1016/j.ijhydene.2020.06.132</mixed-citation><mixed-citation xml:lang="en">Gardner L., Liang Z., Clouthier T., MacCoy R. A large-scale study on the effect of ambient conditions on hydrogen recombiner-induced ignition. International Journal of Hydrogen Energy, 2021. vol. 46, iss. 23, pp. 12594–12604. https://doi.org/10.1016/j.ijhydene.2020.06.132</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Bentaib, A. Overview on hydrogen risk research and development activities: methodology and open issues / A. Bentaib, N. Meynet, A. Bleyer // Nucl. Eng. Technol. – 2015. – Vol. 47, iss. 1. – P. 25–32. https://doi.org/10.1016/j.net.2014.12.001</mixed-citation><mixed-citation xml:lang="en">Bentaib A., Meynet N., Bleyer A. Overview on hydrogen risk research and development activities: methodology and open issues. Nuclear Engineering and Technology, 2015, vol. 47, iss. 1, pp. 25–32. https://doi.org/10.1016/j.net.2014.12.001</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Hydrogen removal from LWR containments by catalytic-coated thermal insulation elements (THINCAT) / K. Fischer [et al.] // Nucl. Eng. Design. – 2003. – Vol. 221, iss. 1–3. – P. 137–149. https://doi.org/10.1016/S0029-5493(02)00348-5</mixed-citation><mixed-citation xml:lang="en">Fischer K., Broeckerhoff P., Ahlers G., Gustavsson V., Herranz L., Polo J., Dominguez T., Royl P. Hydrogen removal from LWR containments by catalytic-coated thermal insulation elements (THINCAT). Nuclear Engineering and Design, 2003, vol. 221, iss. 1–3, pp. 137–149. https://doi.org/10.1016/S0029-5493(02)00348-5</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Sprays in Containment: Final Results of the SARNET Spray Benchmark / J. Malet [et al.] // Nucl. Eng. Design. – 2011. – Vol. 241, iss. 6. – P. 2162–2171. https://doi.org/10.1016/j.nucengdes.2011.03.016</mixed-citation><mixed-citation xml:lang="en">Malet J., Blumenfeld L., Arndt S., Babic M., Bentaib A., Dabbene F., Kostka P. [et al.]. Sprays in Containment: Final Results of the SARNET Spray Benchmark. Nuclear Engineering and Design, 2011, vol. 241, iss. 6, pp. 2162–2171. https://doi.org/10.1016/j.nucengdes.2011.03.016</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Investigation of PAR Behavior in the REKO-4 Test Facility / B. Simon [et al.] // 20th Int. Conf. on Nuclear Engineering and the ASME Conference. – 2012. – Vol. 2. – P. 345–350. https://doi.org/10.1115/ICONE20-POWER2012-54234</mixed-citation><mixed-citation xml:lang="en">Simon B., Reinecke E. A., Klauck M., Heidelberg D., Allelein H. J. Investigation of PAR Behavior in the REKO-4 Test Facility. 20th International Conference on Nuclear Engineering and the ASME Conference, 2012, vol. 2, pp. 345–350. https://doi.org/10.1115/ICONE20-POWER2012-54234</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">THAI test facility for experimental research on hydrogen and fission product behavior in light water reactor containments / S. Gupta [et al.] // Nucl. Eng. Design. – 2015. – Vol. 294. – P. 183–201. https://doi.org/10.1016/j.nucengdes.2015.09.013</mixed-citation><mixed-citation xml:lang="en">Gupta S., Schmidt E., Laufenberg B. von, Freitag M., Poss G., Funke F., Weber G. THAI test facility for experimental research on hydrogen and fssion product behavior in light water reactor containments. Nuclear Engineering and Design, 2015, vol. 294, pp. 183–201. https://doi.org/10.1016/j.nucengdes.2015.09.013</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Project MITHYGENE [Electronic resource] // IRSN. – Mode of access: https://www.irsn.fr/recherche/projet-mithygene. – Date of access: 03.06.2024.</mixed-citation><mixed-citation xml:lang="en">Project MITHYGENE. IRSN. Available at: https://www.irsn.fr/recherche/projet-mithygene (accessed 3 June 2024) (in French).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Status report on hydrogen management and related computer codes / NEA, OECD Publishing. – Paris, 2015. – 211 p.</mixed-citation><mixed-citation xml:lang="en">NEA. Status report on hydrogen management and related computer codes. Paris, OECD Publishing, 2015. 211 p.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Shapiro, Z. M. Hydrogen flammability data and application to PWR loss-of-coolant accident: Report WAPD-SC-545 [Electronic resource] / Z. M. Shapiro, T. R. Moffette. – Pittsburgh: Westinghouse Electric Corp., 1957. – Mode of access: https://digital.library.unt.edu/ark:/67531/metadc1024816/m2/1/high_res_d/4327402.pdf. – Date of access: 07.07.2023.</mixed-citation><mixed-citation xml:lang="en">Shapiro Z. M., Moffette T. R. Hydrogen flammability data and application to PWR loss-of-coolant accident: Report WAPD-SC-545. Pittsburgh, Westinghouse Electric Corp., 1957. Available at: https://digital.library.unt.edu/ark:/67531/metadc1024816/m2/1/high_res_d/4327402.pdf (accessed 7 July 2023).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Анализ и устранение замечаний Ростехнадзора к пассивным каталитическим рекомбинаторам водорода для энергоблоков ВВЭР / А.В. Михальчук [и др.] // Краткие результаты научно-технической деятельности ВНИИАЭС за 2016 год: сб. работ / АО «ВНИИАЭС»; редкол.: Л. М. Воронин (гл. ред.) [и др.]. – М.: ВНИИАЭС, 2017. – С. 17–26.</mixed-citation><mixed-citation xml:lang="en">Mihal’chuk A. V., Solov’jov S. L., Solov’ev B. S., Stepanov V. S., Fedorchenko S. V., Sedov M. K. Analysis and elimination of remarks of Rostechnadzor to passive catalytic hydrogen recombiners for VVER power units. Kratkie rezul’taty nauchno-tekhnicheskoi deyatel’nosti VNIIAES za 2016 god: sb. rabot [Brief results of scientific and technical activities of VNIIAES for 2016: Proc. VNIIAES]. Moscow, VNIIAES, 2017, pp. 17–26 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Kumar, R. K. Flammability limits of hydrogen-oxygen-diluent mixtures / R. K. Kumar // J. Fire Sci. – 1985. – Vol. 3, iss. 4. – P. 245–262. https://doi.org/10.1177/073490418500300402</mixed-citation><mixed-citation xml:lang="en">Kumar R. K. Flammability limits of hydrogen-oxygen-diluent mixtures. Journal of Fire Science, 1985, vol. 3, iss. 4, pp. 245–262. https://doi.org/10.1177/073490418500300402</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
