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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">bsuir</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады БГУИР</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady BGUIR</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7648</issn><issn pub-type="epub">2708-0382</issn><publisher><publisher-name>БГУИР</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35596/1729-7648-2025-23-4-63-69</article-id><article-id custom-type="elpub" pub-id-type="custom">bsuir-4183</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Контурный термосифон для эффективного охлаждения миниатюрных источников тепловыделения в электронике</article-title><trans-title-group xml:lang="en"><trans-title>Loop Thermosiphon for Efficient Cooling of Miniature Heat Sources in Electronics</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>Олехнович</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aliakhnovich</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олехнович Валерий Адамович, ст. науч. сотр. науч.-иссл. лаб. капил.-порис. матер. (НИЛ-24) </p><p>Минск </p><p>Тел.: +375 17 290-99-92 </p></bio><bio xml:lang="en"><p>Aliakhnovich Valery Adamovich, Senior Researcher at the R&amp;D La­ boratory of Capillary-Porous Materials (Lab. 24) </p><p>Тel.: +375 17 290-99-92 </p><p>220005, Republic of Belarus, Minsk, Platonova St., 41 </p></bio><email xlink:type="simple">nil24@pminstitute.by</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>Ильющенко</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyushchanka</surname><given-names>A. Ph.</given-names></name></name-alternatives><bio xml:lang="ru"><p>акад. Нац. акад. наук Беларуси, д-р техн. наук, проф., дир. </p><p>Минск </p></bio><bio xml:lang="en"><p>Academician of the National Academy of Sciences of Belarus, Dr. Sci. (Tech.), Professor, Director </p><p>Minsk </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анчевский</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ancheuski</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>зав. НИЛ-24, ИПМ</p><p>Минск</p></bio><bio xml:lang="en"><p>Head of the Lab. 24, PMI</p><p>Minsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт порошковой металлургии имени академика О. В. Романа (ИПМ)</institution></aff><aff xml:lang="en"><institution>Pow­der Metallurgy Institute (PMI)</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт порошковой металлургии имени академика О. В. Романа</institution></aff><aff xml:lang="en"><institution>Powder Metallurgy Institute</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>09</month><year>2025</year></pub-date><volume>23</volume><issue>4</issue><fpage>63</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Олехнович В.А., Ильющенко А.Ф., Анчевский П.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Олехнович В.А., Ильющенко А.Ф., Анчевский П.С.</copyright-holder><copyright-holder xml:lang="en">Aliakhnovich V.A., Ilyushchanka A.P., Ancheuski P.S.</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://doklady.bsuir.by/jour/article/view/4183">https://doklady.bsuir.by/jour/article/view/4183</self-uri><abstract><p>Рассмотрен пульсирующий контурный термосифон как наиболее перспективное теплопередающее устройство для охлаждения теплонагруженных миниатюрных полупроводников, обладающее минимальными размерами испарителя и демонстрирующее плотность теплосъема более 120 Вт/см2. Основной недостаток данного типа термосифонов – высокое термическое сопротивление. Для повышения эффективности теплопередачи исследованы ультратонкие порошковые капиллярные структуры, являющиеся интенсификатором процесса испарения в испарителе контурного термосифона. Показано, что применение порошковой капиллярной структуры толщиной 140 мкм, изготовленной из фракции медного порошка ПМС-Н с размерами частиц 63–100 мкм, снижает термическое сопротивление контурного термосифона в три раза и повышает плотность теплосъема до 220 Вт/см2. Пульсирующий контурный термосифон может использоваться в эффективных системах охлаждения серверных станций, промышленных компьютеров, телекоммуникационного оборудования, где требуется отвод тепловыделения от миниатюрных полупровод­никовых компонентов в ограниченном пространстве плотной компоновки.</p></abstract><trans-abstract xml:lang="en"><p>The article considers a pulsating loop thermosyphon as the most promising heat-transfer device for coo­ ling heat-loaded miniature semiconductors, which has minimal evaporator dimensions and demonstrates a heat removal density of more than 120 W/cm2. The main disadvantage of this type of thermosyphons is high thermal resistance. To improve the efficiency of heat transfer, ultra-thin powder capillary structures were studied, which intensify the evaporation process in the evaporator of the loop thermosyphon. It has been shown that the use of a 140 μm thick powder capillary structure made from a fraction of copper powder PMS-N with particle sizes of 63–100 μm to reduces the thermal resistance of a loop thermosyphon by three times and increases the heat flux density to 220 W/cm2. The pulsating loop thermosyphon can be used in efficient cooling systems for server stations, industrial computers, telecommunication equipment, where it is necessary to remove heat from miniature semiconductor components in a limited space of a dense arrangement.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>охлаждение электроники</kwd><kwd>тепловая труба</kwd><kwd>контурный термосифон</kwd><kwd>порошковая капиллярная структура</kwd><kwd>испаритель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electronics cooling</kwd><kwd>heat pipe</kwd><kwd>loop thermosyphon</kwd><kwd>powder capillary structure</kwd><kwd>evaporator</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">Janicki, M. Modelling Electronic Circuit Radiation Cooling Using Analytical Thermal Model / M. Janicki, A. Napieralski // Microelectronics Journal. 2000. Vol. 31, Iss. 9–10. 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