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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">vdgtu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Дагестанского государственного технического университета. Технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of Dagestan State Technical University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6185</issn><issn pub-type="epub">2542-095X</issn><publisher><publisher-name>Daghestan State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21822/2073-6185-2025-52-3-6-19</article-id><article-id custom-type="elpub" pub-id-type="custom">vdgtu-1834</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 И ЭЛЕКТРОТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ENERGY AND ELECTRICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Особенности кипения сверхтекучего гелия как криоагента на плоском нагревателе внутри вертикального канала</article-title><trans-title-group xml:lang="en"><trans-title>Peculiarities of superfluid helium boiling as a cryogenic agent on a flat heater inside a vertical channel</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>Корняков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kornyakov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илья Арсланович Корняков - аспирант, кафедра низких температур.</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p></bio><bio xml:lang="en"><p>Ilya A. Kornyakov - Graduate Student, Low Temperature Department.</p><p>14 Krasnokazarmennaya Str., building 1, Moscow 111250</p></bio><email xlink:type="simple">kornyakov_99@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>Пузина</surname><given-names>Ю. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Puzina</surname><given-names>Yu. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юлия Юрьевна Пузина - кандидат технических наук, доцент, заведующий кафедрой низких температур.</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p></bio><bio xml:lang="en"><p>Yulia Yu. Puzina - Cand. Sci. (Eng.), Assoc. Prof., Head of the Low Temperature Department.</p><p>14 Krasnokazarmennaya Str., building 1, Moscow 111250</p></bio><email xlink:type="simple">Puzina@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский университет «Московский энергетический институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University «Moscow Power Engineering Institute»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>11</month><year>2025</year></pub-date><volume>52</volume><issue>3</issue><fpage>6</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корняков И.А., Пузина Ю.Ю., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Корняков И.А., Пузина Ю.Ю.</copyright-holder><copyright-holder xml:lang="en">Kornyakov I.A., Puzina Y.Y.</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://vestnik.dgtu.ru/jour/article/view/1834">https://vestnik.dgtu.ru/jour/article/view/1834</self-uri><abstract><sec><title>Цель</title><p>Цель. Целью работы является исследование процессов тепломассопереноса при кипении He–II как криоагента на плоской поверхности нагрева внутри цилиндрического канала при глубинах погружения, сопоставимых с его высотой.</p></sec><sec><title>Метод</title><p>Метод. Исследование основано на применении методов термодинамического анализа, натурного и вычислительного моделирования процессов и объектов криогенной техники.</p></sec><sec><title>Результат</title><p>Результат. Представлена схема экспериментальной ячейки, а также методика проведения эксперимента и обработки данных. Внимание уделяется поведению межфазной поверхности в зависимости от различных параметров эксперимента: давления над зеркалом жидкости, удельной тепловой нагрузки и высоты столба жидкости над нагревательным элементом. Предложена классификация режимов кипения в вертикальном канале в зависимости от визуального характера процессов на межфазной поверхности жидкость-пар. Построены зависимости положения уровня жидкости в канале от времени. Проведено сравнение всех серий, выявлены закономерности между скоростью межфазной поверхности, разностью температур в жидкости и глубиной погружения нагревательного элемента в сверхтекучий гелий. Составлен тепловой баланс для испарившейся жидкости с целью оценки потерь тепла в свободный объем.</p></sec><sec><title>Вывод</title><p>Вывод. При разработке и проектировании систем с использованием сверхтекучего гелия в качестве криоагента можно предполагать морфологию межфазной поверхности и соответствующий рабочий режим установки.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. The aim of the work is to study heat and mass transfer processes during He–II boiling as a cryogenic agent on a flat heating surface inside a cylindrical channel at immersion depths comparable to its height.</p></sec><sec><title>Method</title><p>Method. The study is based on the application of thermodynamic analysis methods, natural and computational modeling of processes and objects of cryogenic engineering.</p></sec><sec><title>Result</title><p>Result. A schematic of the experimental cell, as well as the methodology for conducting the experiment and data processing, are presented. Attention is paid to the behavior of the interfacial surface depending on various experimental parameters: pressure above the liquid surface, specific heat load and the height of the liquid column above the heating element. A classification of boiling regimes in a vertical channel depending on the visual nature of the processes at the liquid-vapor interfacial surface is proposed. Dependences of the position of the liquid level in the channel on time are constructed. All series were compared, regularities between the interfacial surface velocity, the temperature difference in the liquid and the immersion depth of the heating element in superfluid helium were revealed. A heat balance for the evaporated liquid was compiled in order to estimate heat losses into free volume.</p></sec><sec><title>Conclusion</title><p>Conclusion. When developing and designing systems using superfluid helium as a cryogenic agent, one can assume the morphology of the interfacial surface and the corresponding operating mode of the system.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сверхтекучий гелий</kwd><kwd>криоагент</kwd><kwd>криостат</kwd><kwd>тепломассоперенос</kwd><kwd>паровая пленка</kwd><kwd>межфазная поверхность</kwd><kwd>эксперимент</kwd><kwd>кипение</kwd><kwd>вертикальный канал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>superfluid helium</kwd><kwd>cryoagent</kwd><kwd>cryostat</kwd><kwd>heat and mass transfer</kwd><kwd>vapor film</kwd><kwd>interphase surface</kwd><kwd>experiment</kwd><kwd>boiling</kwd><kwd>vertical channel</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">Takada S., Kobayashi H., Murakami M. and Kimura N. 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