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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Refrigeration Technology</journal-id><journal-title-group><journal-title xml:lang="en">Refrigeration Technology</journal-title><trans-title-group xml:lang="ru"><trans-title>Холодильная техника</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>制冷技术</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0023-124X</issn><issn publication-format="electronic">2782-4241</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">117508</article-id><article-id pub-id-type="doi">10.17816/RF117508</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Reviews</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Научные обзоры</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Using a heat pipe as a waste air heat exchanger in a central air conditioner</article-title><trans-title-group xml:lang="ru"><trans-title>Использование тепловой трубы в качестве теплообменника отработанного воздуха в центральном кондиционере</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9945-0850</contrib-id><contrib-id contrib-id-type="spin">8581-1809</contrib-id><name-alternatives><name xml:lang="en"><surname>Zharov</surname><given-names>Anton A.</given-names></name><name xml:lang="ru"><surname>Жаров</surname><given-names>Антон Андреевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Tech.)</p></bio><bio xml:lang="ru"><p>к.т.н.</p></bio><email>zharov_a@bmstu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3774-1825</contrib-id><name-alternatives><name xml:lang="en"><surname>Timashpolskiy</surname><given-names>Ian M.</given-names></name><name xml:lang="ru"><surname>Тимашпольский</surname><given-names>Ян Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ian.timash@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4818-3702</contrib-id><contrib-id contrib-id-type="spin">2859-5006</contrib-id><name-alternatives><name xml:lang="en"><surname>Borisenko</surname><given-names>Artem V.</given-names></name><name xml:lang="ru"><surname>Борисенко</surname><given-names>Артём Витальевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Tech.)</p></bio><bio xml:lang="ru"><p>к.т.н.</p></bio><email>borart@bmstu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7709-1209</contrib-id><contrib-id contrib-id-type="spin">7679-2022</contrib-id><name-alternatives><name xml:lang="en"><surname>Valiakina</surname><given-names>Anna V.</given-names></name><name xml:lang="ru"><surname>Валякина</surname><given-names>Анна Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Tech.)</p></bio><bio xml:lang="ru"><p>к.т.н.</p></bio><email>valiakina@bmstu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5908-8105</contrib-id><name-alternatives><name xml:lang="en"><surname>Timashpolskiy</surname><given-names>Sevastian M.</given-names></name><name xml:lang="ru"><surname>Тимашпольский</surname><given-names>Севастьян Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>timsevmih@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Bauman Moscow State Technical University</institution></aff><aff><institution xml:lang="ru">Московский государственный технический университет им. Н.Э. Баумана</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Bauman Moscow State Technical University</institution></aff><aff><institution xml:lang="ru">Московский государственный технический университет им. Н.Э. Баумана</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-03-03" publication-format="electronic"><day>03</day><month>03</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2022-11-15" publication-format="electronic"><day>15</day><month>11</month><year>2022</year></pub-date><volume>111</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>221</fpage><lpage>232</lpage><history><date date-type="received" iso-8601-date="2022-12-13"><day>13</day><month>12</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2023-02-02"><day>02</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Zharov A.A., Timashpolskiy I.M., Borisenko A.V., Valiakina A.V., Timashpolskiy S.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Жаров А.А., Тимашпольский Я.М., Борисенко А.В., Валякина А.В., Тимашпольский С.М.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Zharov A.A., Timashpolskiy I.M., Borisenko A.V., Valiakina A.V., Timashpolskiy S.M.</copyright-holder><copyright-holder xml:lang="ru">Жаров А.А., Тимашпольский Я.М., Борисенко А.В., Валякина А.В., Тимашпольский С.М.</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0/</ali:license_ref></license></permissions><self-uri xlink:href="https://freezetech.ru/0023-124X/article/view/117508">https://freezetech.ru/0023-124X/article/view/117508</self-uri><abstract xml:lang="en"><p>The present study is a review of the literature on heat pipes. The aim is to determine the feasibility of using this type of heat exchanger in air-conditioning (AC) systems. This paper deals with the principle of operation and design of the heat pipe, provides various ways to return condensate, and describes in detail its thermodynamic cycle. Considerable attention is paid to wick structures and working fluids. The restrictions on the heat transfer of heat pipes that affect heat exchanger performance are noted. Design recommendations found in scientific literature and on the websites of manufacturing companies are also described. The diagrams of the heat pipe designs used in central air conditioners and AC systems are given. An example of an installation using heat pipes as a waste air heat exchanger in a central air conditioner is given. Further, the efficiency and thermal power of various methods of heat recovery are compared with the same initial parameters of the flow rate and temperatures of outdoor/exhaust air. A conclusion is reached regarding the advantages of using heat pipes in AC systems for heat recovery. The reason for the rare use of this heat exchanger is also explained. Different methods of heat recovery are compared, and the prospects of using a heat pipe in AC systems are assessed. Recommendations are given on the direction of further research on this topic.</p></abstract><trans-abstract xml:lang="ru"><p>Целью настоящей работы является обзор литературы, посвящённой тепловым трубам, для анализа целесообразности использования данного типа теплообменника в системах кондиционирования воздуха. В статье описан принцип работы и конструкция тепловой трубы, приводятся различные способы возврата конденсата, подробно описывается её термодинамический цикл. Значительное внимание уделяется фитильным конструкциям и рабочим жидкостям. Далее перечисляются ограничения на перенос теплоты тепловых труб, которые влияют на работоспособность теплообменника. Описаны рекомендации по проектированию, найденные в научной литературе и на сайтах компаний-производителей. Приводятся схемы конструкций тепловых труб, применяющиеся в центральных кондиционерах и в системах кондиционирования воздуха (СКВ). Продемонстрирован пример установки с использованием тепловых труб в качестве теплообменника отработанного воздуха в центральном кондиционере. Проведено сравнение эффективности и тепловой мощности различных способов теплоутилизации при одинаковых начальных параметрах расхода и температур наружного, вытяжного воздуха. В заключении сделан вывод о преимуществах использования тепловых труб в СКВ для утилизации теплоты. Указана причина редкого применения указанного теплообменника. Приводится результат сравнения различных способов теплоутилизации и ответ на вопрос о перспективности использования тепловой трубы в СКВ. Даются рекомендации о направлении дальнейших исследований по представленной в обзоре тематике.</p></trans-abstract><kwd-group xml:lang="en"><kwd>heat pipe</kwd><kwd>heat exchanger</kwd><kwd>AC</kwd><kwd>wick</kwd><kwd>thermosiphon</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тепловая труба</kwd><kwd>теплообменник</kwd><kwd>СКВ</kwd><kwd>фитиль</kwd><kwd>термосифон</kwd><kwd>теплоутилизатор</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Chi SW. Heat pipe theory and practice: A sourcebook. New York: Hemisphere Pub. Corp; 1976.</mixed-citation><mixed-citation xml:lang="ru">Чи С. Тепловые трубы: теория и практика. М.: Машиностроение, 1981.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Dunn PD, Reay DA. Heat Pipes. 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