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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">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2023.12.1966-1976</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-136</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>Инженерные системы в строительстве</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Engineering systems in construction</subject></subj-group></article-categories><title-group><article-title>Экспериментальные исследования кожухотрубного теплообменника с цилиндрическими турбулизаторами потока</article-title><trans-title-group xml:lang="en"><trans-title>Experimental studies of shell and tube heat exchanger with cylindrical flow turbulators</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3433-3957</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никулин</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikulin</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Юрьевич Никулин — кандидат технических наук, доцент кафедры теплогазо-снабжения и вентиляции</p><p>308012, г. Белгород, ул. Костюкова д. 46</p><p>ResearcherID: AAF-9961-2022</p></bio><bio xml:lang="en"><p>Nikolaj Yu. Nikulin — Candidate of Technical Sciences, Associate Professor of the Department of Heat and Gas Supply and Ventilation</p><p>46 Kostyukova st., Belgorod, 308012</p><p>ResearcherID: AAF-9961-2022</p></bio><email xlink:type="simple">Nick_973gt@mail.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/0000-0003-1989-0632</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Елистратова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Elistratova</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Васильевна Елистратова — кандидат технических наук, доцент кафедры теплогазоснабжения и вентиляции</p><p>308012, г. Белгород, ул. Костюкова д. 46</p><p>РИНЦ ID: 853532, Scopus: 57201772844</p></bio><bio xml:lang="en"><p>Yuliya V. Elistratova — Candidate of Technical Sciences, Associate Professor of the Department of Heat and Gas Supply and Ventilation</p><p>46 Kostyukova st., Belgorod, 308012</p><p>ID RSCI: 853532, Scopus: 57201772844</p></bio><email xlink:type="simple">tgv.info@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белгородский государственный технологический университет имени В.Г. Шухова (БГТУ им. В.Г. Шухова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belgorod State Technological University named after V.G. Shukhov (BSTU named after V.G. Shukhov)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>22</day><month>12</month><year>2023</year></pub-date><volume>18</volume><issue>12</issue><fpage>1966</fpage><lpage>1976</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никулин Н.Ю., Елистратова Ю.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Никулин Н.Ю., Елистратова Ю.В.</copyright-holder><copyright-holder xml:lang="en">Nikulin N.Y., Elistratova Y.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.vestnikmgsu.ru/jour/article/view/136">https://www.vestnikmgsu.ru/jour/article/view/136</self-uri><abstract><sec><title>Введение</title><p>Введение. Перспективным направлением современных систем теплоснабжения является активное применение теплообменников. Теплообменники кожухотрубной конструкции достаточно распространены. Поэтому актуальна модернизация таких теплообменников с целью повышения основного параметра — коэффициента теплопередачи. Разработан теплообменник, у которого трубки оснащены пластинами с цилиндрическими турбулизаторами — ребрами цилиндрической формы. Проведены экспериментальные исследования нового теплообменника в условиях, соответствующих реальной системе теплоснабжения.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Использовался натурный стенд, который представляет собой независимую систему отопления здания. Основное оборудование стенда — электрокотел мощностью 5 кВт, потребитель — радиаторы, исследуемый теплообменник с турбулизаторами, контрольно-измерительные приборы. Планирование эксперимента основано на температурном графике отпуска теплоты от котельной и температурном графике потребителя. Выполнены математическая обработка результатов, проверка значимости уравнений и коэффициентов.</p></sec><sec><title>Результаты</title><p>Результаты. Для теплообменника с турбулизаторами экспериментальным способом получены значения коэффициента теплопередачи при различных температурах наружного воздуха периода отопления. Расхождения с расчетными данными составили не более 10 %, что допустимо. Получены зависимости коэффициента теплопередачи от температурного напора при скоростях теплоносителя в межтрубном пространстве 0,16 и 0,32 м/с. Результаты математической обработки показали, что эти зависимости являются адекватными, статистически значимо описывают результаты проведенных исследований. Установлено, что при скорости 0,16 м/с в среднем за отопительный период коэффициент теплопередачи исследуемого теплообменника с турбулизаторами получился больше на 22 %, чем у серийного; при скорости 0,32 м/с — на 23 % больше.</p></sec><sec><title>Выводы</title><p>Выводы. Экспериментальные исследования подтвердили, что благодаря турбулизации теплоносителя коэффициент теплопередачи теплообменника с турбулизаторами в среднем увеличился на 23 %. Габариты такого теплообменника будут значительно меньше, чем серийного (ГОСТ 27590–2005). Конструкция теплообменной трубки с цилиндрическими турбулизаторами рекомендована для использования в кожухотрубных теплообменниках, а также для воздухоподогревателей, калориферов, экономайзеров.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Heat exchangers are important equipment in modern heat supply. This equipment is very common. Modernization of shell-and-tube heat exchangers is an important direction. The purpose of modernization is to increase the heat transfer coefficient. A heat exchanger which tubes are equipped with plates was developed. Cylindrical turbulators (ribs) are located on the plates. The experiment is important for the development of a new heat exchanger. The experimental conditions correspond to the real heat supply system.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The full-scale stand was used for the experiment. The stand represents an independent heating system of the building. The planning of the experiment is based on the temperature schedule of the boiler house and the temperature schedule for the consumer. Mathematical processing of the results was carried out.</p></sec><sec><title>Results</title><p>Results. For a heat exchanger (with turbulators), the values of the heat transfer coefficient were obtained at different outdoor temperatures during the heating period. The dependences of the heat transfer coefficient on the temperature difference are obtained. This was done at coolant velocities in the annular space of 0.16 and 0.32 m/s. Discrepancies are adequate, statistically significantly describe the results of the experiment. The heat transfer coefficient of the heat exchanger (with turbulators) turned out to be greater than that of the serial one. This parameter is 22 % more at a speed of 0.16 m/s, 23 % more at a speed of 0.32 m/s on average for the heating period.</p></sec><sec><title>Conclusions</title><p>Conclusions. The heat transfer coefficient increased for the heat exchanger with turbulators by an average of 23 %. The turbulence of the coolant affects this increase. The dimensions will be much smaller for such a heat exchanger than for an apparatus with smooth tubes. Tube with cylindrical turbulators is recommended for use in different equipment. This can be used in shell-and-tube heat exchangers, air heaters, heaters, economizers.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>теплообменник</kwd><kwd>кожухотрубный</kwd><kwd>турбулизация</kwd><kwd>теплоноситель</kwd><kwd>коэффициент теплопередачи</kwd><kwd>теплоснабжение</kwd><kwd>турбулизатор</kwd><kwd>эксперимент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heat exchanger</kwd><kwd>shell-and-tube</kwd><kwd>turbulization</kwd><kwd>coolant</kwd><kwd>heat transfer coefficient</kwd><kwd>heat supply</kwd><kwd>turbulator</kwd><kwd>experiment</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках реализации федеральной программы поддержки университетов «Приоритет 2030» с использованием оборудования на базе Центра высоких технологий БГТУ им. В.Г. Шухова. Исследования проводились в рамках гранта Президента Российской Федерации для ведущей научной школы № НШ-25.2022.4 с использованием оборудования Центра высоких технологий БГТУ В.Г. Шухова.</funding-statement><funding-statement xml:lang="en">The work was realized in the framework of the Program “Priority 2030” on the base of the Belgorod State Technological University named after V.G. Shukhov. The work was realized using equipment of High Technology Center at BSTU named after V.G. Shukhov. The research was carried out within the framework of the Grant of the President of the Russian Federation for the leading scientific school No. NSh-25.2022.4 using the equipment of the Center for High Technologies of the Belgorod State Technological University named after V.G. Shukhov.</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">О состоянии теплоэнергетики и централизованного теплоснабжения в Российской Федерации в 2020 г. // Новости теплоснабжения. 2022. № 3 (231). 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