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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">vguit</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Воронежского государственного университета инженерных технологий</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Voronezh State University of Engineering Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-910X</issn><issn pub-type="epub">2310-1202</issn><publisher><publisher-name>VSUET</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20914/2310-1202-2020-2-42-48</article-id><article-id custom-type="elpub" pub-id-type="custom">vguit-2507</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>Процессы и аппараты пищевых производств</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Processes and equipment for food industry</subject></subj-group></article-categories><title-group><article-title>Разработка математических моделей испытательных систем как объектов с сосредоточенными параметрами</article-title><trans-title-group xml:lang="en"><trans-title>Development of mathematical models of test systems as objects with lumped parameters</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>Абрамов</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramov</surname><given-names>D. O.</given-names></name></name-alternatives><email xlink:type="simple">noreplay@elpub.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2434-0267</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Швецова-Шиловская</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shvetsova</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор, начальник отделения, ш. Энтузиастов, 23, Москва, 111024, Россия</p></bio><bio xml:lang="en"><p>Dr. Sci. (Engin.), professor, ,, Enthusiasts, 23, Moscow, 111024, Russia</p></bio><email xlink:type="simple">noreplay@elpub.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4606-8313</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назаренко</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarenko</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., ведущий научный сотрудник, ш. Энтузиастов, 23, Москва, 111024, Россия</p></bio><bio xml:lang="en"><p>Cand. Sci. (Engin.), , leading researcher,, Enthusiasts, 23, Moscow, 111024, Russia</p></bio><email xlink:type="simple">noreplay@elpub.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственный научно-исследовательский институт органической химии и технологии</institution></aff><aff xml:lang="en"><institution>State Research Institute of Organic Chemistry and Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>07</month><year>2020</year></pub-date><volume>82</volume><issue>2</issue><fpage>42</fpage><lpage>48</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абрамов Д.О., Швецова-Шиловская Т.Н., Назаренко Д.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Абрамов Д.О., Швецова-Шиловская Т.Н., Назаренко Д.И.</copyright-holder><copyright-holder xml:lang="en">Abramov D.O., Shvetsova T.N., Nazarenko D.I.</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.vestnik-vsuet.ru/vguit/article/view/2507">https://www.vestnik-vsuet.ru/vguit/article/view/2507</self-uri><abstract><p>В работе рассмотрена задача построения математической модели для исследования теплового режима испытательной системы на этапе проектирования. Испытательная система в данном исследовании представляется как сложная химико-технологическая система, которая включает в себя большое число элементов, узлов и приборов, характеризующихся разнообразием функциональных и тепловых взаимосвязей. Методом проектирования рассматрииваемой системы принят блочно-иерархический метод. Разработана тепловая блок-схема системы, включающая в себя шесть взаимосвязанных блоков: термостат; теплоноситель; теплообменник; аппарат кубической формы; среда в аппарате и окружающая среда. Создана математическая модель для оценки средних температур в системе, которая позволяет рассчитывать интегральные характеристики процессов теплообмена (значения среднеобъемных и среднеповерхностных температур, средних тепловых потоков) с учетом взаимодействия между всеми блоками системы. Полагалось, что каждый элемент рассматриваемой системы может иметь тепловые связи, как с окружающей средой, так и с другими элементами системы. Принималось, что в элементе может рассеиваться собственная мощность, а также мощность, подводимая для терморегулирования элемента, которая зависит от его температуры. Расчет температурных полей тел и потоков теплоносителей при этом проводился на основе моделей с сосредоточенными параметрами, с допущением о том, что градиенты температуры по всем направлениям отсутствуют. Модель представлена системой обыкновенных дифференциальных уравнений. Показаны зависимости изменения температуры от времени для двух нестационарных режимов термостатирования системы, состоящей из полого аппарата кубической формы объемом 3 м3, наполненного газом и снабженного теплообменником. Разработанная математическая модель позволяет решать задачи стабилизации температурного режима испытательной системы.</p></abstract><trans-abstract xml:lang="en"><p>This paper deals with the problem of constructing a mathematical model for studying the thermal regime of a test system at the design stage. The test system is presented as a complex chemical-technological system, which includes a large number of elements, components and devices, characterized by a variety of functional and thermal relationships. The block-hierarchical method is used for designing the system under consideration. A thermal block diagram of the system has been developed, which includes six interconnected blocks: a thermostat; coolant; heat exchanger; cubic apparatus, medium in apparatus and environment. A mathematical model has been created to estimate the average temperatures in the system, which allows you to calculate the integral characteristics of heat exchange processes (the values average intake temperatures and the values surface average temperatures, average heat fluxes) taking into account the interaction between all blocks of the system. It was assumed that each element of the system under consideration can have thermal connections, both with the environment and with other elements of the system. It was assumed that the element can dissipate its own power, as well as the power supplied for thermal control of the element, which depends on its temperature. The calculation of the temperature fields of bodies and flows of heat carriers was carried out on the basis of models with concentrated parameters, with the assumption that there are no temperature gradients in all directions. The model is represented by a system of ordinary differential equations. The dependences of temperature on time change for two non-stationary modes of a thermostatic system consisting of a hollow device of cubic shape with a volume 3 m3 filled with gas and equipped with a heat exchanger are shown. The developed mathematical model allows solving the problems of temperature stabilization of the test system.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>испытательная система</kwd><kwd>тепловые потоки</kwd><kwd>теплообмен</kwd><kwd>нестационарный режим</kwd><kwd>термостатирование</kwd><kwd>тепловая блок-схема</kwd><kwd>математическая модель</kwd><kwd>технологическое оборудование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>test system</kwd><kwd>flows of heat</kwd><kwd>heat exchanger</kwd><kwd>non-stationary model</kwd><kwd>thermal block diagram</kwd><kwd>mathematical model</kwd><kwd>technological equipment</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">Dobre T.G., Marcano J.G.S. Chemical engineering: Modeling, simulation and similitude. John Wiley &amp; Sons, 2007.</mixed-citation><mixed-citation xml:lang="en">Dobre T.G., Marcano J.G.S. 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