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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">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2022-2-260-269</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-605</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>ЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Определение коэффициентов теплоотдачи в мультивихревом тепломассообменном устройстве</article-title><trans-title-group xml:lang="en"><trans-title>Determination of heat-transfer coefficients in multi-vortex heat-mass-exchange apparatus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8979-4457</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Владимирович Дмитриев, доктор технических наук, доцент, заведующий кафедрой</p><p>кафедра теоретических основ теплотехники</p><p>420066</p><p>ул. Красносельская, 51</p><p>Казань</p></bio><bio xml:lang="en"><p>Andrey V. Dmitriev, Dr. Sci. (Eng.), Associate Professor, Head of the Department</p><p>Department of Theoretical Foundations of Heat Engineering</p><p>420066</p><p>51, Krasnoselskaya St.</p><p>Kazan</p></bio><email xlink:type="simple">ieremiada@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9513-894X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мадышев</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Madyshev</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильнур Наилович Мадышев, кандидат технических наук, доцент, заведующий кафедрой</p><p>Нижнекамский химико-технологический институт, филиал</p><p>кафедра машин и аппаратов химических производств</p><p>423570</p><p>ул. Строителей, 47</p><p>Нижнекамск</p></bio><bio xml:lang="en"><p>Ilnur N. Madyshev, Cand. Sci. (Eng.), Associate Professor, Head of the Department</p><p>Nizhnekamsk Chemical Technology Institute, Branch</p><p>Department of Machines and Equipment of Chemical Production</p><p>423570</p><p>47, Stroiteley St.</p><p>Nizhnekamsk</p></bio><email xlink:type="simple">ilnyr_91@mail.ru</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>Галимова</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Galimova</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Альбина Талгатовна Галимова, кандидат технических наук, доцент, доцент кафедры</p><p>Нижнекамский химико-технологический институт, филиал</p><p>кафедра процессов и аппаратов химических технологий</p><p>423570</p><p>ул. Строителей, 47</p><p>Нижнекамск</p></bio><bio xml:lang="en"><p>Albina T. Galimova, Cand. Sci. (Eng.), Associate Professor, Associate Professor of the Department</p><p>Nizhnekamsk Chemical Technology Institute, Branch</p><p>Department of Chemical Technology Processes and Equipment</p><p>423570</p><p>47, Stroiteley St.</p><p>Nizhnekamsk</p></bio><email xlink:type="simple">galimovaat@nchti.ru</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>Сахибгареев</surname><given-names>Н. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Sakhibgareev</surname><given-names>N. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нурислам Фаритович Сахибгареев, студент</p><p>420066</p><p>ул. Красносельская, 51</p><p>Казань</p></bio><bio xml:lang="en"><p>Nurislam F. Sakhibgareev, Student</p><p>420066</p><p>51, Krasnoselskaya St.</p><p>Kazan</p></bio><email xlink:type="simple">fanat.elvisa@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5910-5312</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бадретдинова</surname><given-names>Г. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Badretdinova</surname><given-names>G. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гузель Рамилевна Бадретдинова, аспирант</p><p>420066</p><p>ул. Красносельская, 51</p><p>Казань</p></bio><bio xml:lang="en"><p>Guzel R. Badretdinova, Postgraduate student</p><p>420066</p><p>51, Krasnoselskaya St.</p><p>Kazan</p></bio><email xlink:type="simple">nice.badretdinova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский государственный энергетический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Power Engineering University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский национальный исследовательский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan National Research Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>05</day><month>07</month><year>2022</year></pub-date><volume>26</volume><issue>2</issue><fpage>260</fpage><lpage>269</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дмитриев А.В., Мадышев И.Н., Галимова А.Т., Сахибгареев Н.Ф., Бадретдинова Г.Р., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Дмитриев А.В., Мадышев И.Н., Галимова А.Т., Сахибгареев Н.Ф., Бадретдинова Г.Р.</copyright-holder><copyright-holder xml:lang="en">Dmitriev A.V., Madyshev I.N., Galimova A.T., Sakhibgareev N.F., Badretdinova G.R.</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://ipolytech.elpub.ru/jour/article/view/605">https://ipolytech.elpub.ru/jour/article/view/605</self-uri><abstract><p>   Целями данной работы является определение коэффициентов теплоотдачи от рабочих поверхностей разработанного авторами мультивихревого тепломассообменного устройства, а также получение критериальных зависимостей для расчета коэффициентов теплоотдачи от внутренней стенки корпуса и дна при создании вихрей в предложенном аппарате. Численное моделирование выполнено в программном комплексе ANSYS Fluent. При решении задачи определения профиля скорости текучей среды, для расчета коэффициента теплоотдачи, использовалась модель турбулентности SST k-ω, показывающая удовлетворительную сходимость в пристеночных областях течения жидких и газовых сред при моделировании течений в аналогичных конструкциях, используемых, например, для классификации мелкодисперсного сыпучего материала. Получены безразмерные зависимости, позволяющие связывать число Нуссельта с  числами Рейнольдса и Прандтля. Получены зависимости увеличения интенсивности теплоотдачи от числа Рейнольдса. Установлено, что интенсивность теплоотдачи от внутренней стенки мультивихревого устройства превышает теплоотдачу от дна на 12,7–15,8 % в зависимости от чисел Рейнольдса. Значения коэффициентов теплоотдачи на внутренней стенке предлагаемого устройства могут достигать 14747 Вт/(м2 · К) при средней скорости течения жидкости равной 1 м/с. Предлагаемое мультивихревое тепломассообменное устройство обеспечивает формирование закрученного газового или жидкостного течения в кольцевом зазоре между патрубком и корпусом устройства, что обеспечивает высокие коэффициенты теплоотдачи и, следовательно, высокую интенсивность теплопередачи, особенно через стенку контактной ступени. Проведенные численные исследования показывают возможности достижения высоких значений удельного теплового потока через стенку контактной ступени, что позволяет наиболее эффективно использовать его в процессах, связанных с дополнительным подводом или отводом тепла из контактной ступени через внешнюю поверхность устройства.</p></abstract><trans-abstract xml:lang="en"><p>   In this work, heat transfer coefficients from the working surfaces of a multi-vortex heat-and-mass exchange apparatus developed by the authors are determined along with dimensionless equations for calculating the heat transfer coefficients from the inner wall of a housing and bottom when generating. Numerical modelling is carried out using the ANSYS Fluent software package. When determining the velocity profile of a fluid in order to calculate the coefficient of heat transfer, the SST k-ω turbulence model is used. This allows for an adequate convergence in near-wall fluid and gas flow areas when simulating flows in similar constructions used, for example, to classify finely dispersed bulk solids. Dimensionless equations are obtained that relate the Nusselt number to the Reynolds and Prandtl numbers. Relationships are obtained for the increase in the heat transfer intensity as a function of the Reynolds number. It is established that the intensity of heat transfer from the inner wall in the multi-vortex apparatus exceeds the heat transfer from the bottom by 12.7–15.8 % depending on the Reynolds number. The values of heat transfer coefficients at the inner wall of the proposed apparatus can reach 14747 W/(m2 ∙ K) at an average fluid flow rate of 1 m/s. The proposed multi-vortex heat-exchange apparatus ensures swirling gas or fluid flow in the annular gap between the branch pipe and unit housing to provide high heat transfer coefficients and, hence, high intensity of heat transfer, especially through the wall of the contact stage. The numerical studies demonstrate the possibility of achieving high values of specific heat flux through the wall of the contact stage, which enables the most efficient use of the apparatus in the processes associated with the additional heat supply or removal from the contact stage through its external.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мультивихревое устройство</kwd><kwd>тепломассообмен</kwd><kwd>коэффициент теплоотдачи</kwd><kwd>численное моделирование</kwd><kwd>критериальные уравнения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multi vortex device</kwd><kwd>heat and mass transfer</kwd><kwd>heat transfer coefficient</kwd><kwd>numerical modeling</kwd><kwd>dimensionless equations</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке гранта Российского научного фонда № 21- 79-00001, https://rscf.ru/project/21-79-00001/</funding-statement><funding-statement xml:lang="en">The work was performed with the support of the Russian Science Foundation grant No. 21-79- 00001, https://rscf.ru/project/21-79-00001/.</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">Войнов Н. 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