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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">alternative</journal-id><journal-title-group><journal-title xml:lang="ru">Альтернативная энергетика и экология (ISJAEE)</journal-title><trans-title-group xml:lang="en"><trans-title>Alternative Energy and Ecology (ISJAEE)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-8298</issn><publisher><publisher-name>Международный издательский дом научной периодики "Спейс</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15518/isjaee.2025.09.029-042</article-id><article-id custom-type="elpub" pub-id-type="custom">alternative-2713</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>I. ВОЗОБНОВЛЯЕМАЯ ЭНЕРГЕТИКА. 1. Солнечная энергетика. 1-4-1-0 Солнечные коллекторы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>I. RENEWABLE ENERGY. 1. Solar energy. 1-4-1-0 Solar collectors</subject></subj-group></article-categories><title-group><article-title>Экспериментальное исследование солнечного водонагревателя с греющим пародинамическим контуром</article-title><trans-title-group xml:lang="en"><trans-title>Experimental study of a solar water heater with a heating vapor-dynamic circuit</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>Мола</surname><given-names>А. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Mola</surname><given-names>A. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мола Ахмед Хуссейн, аспирант, инженер-исследователь кафедры «Атомные станции и возобновляемые источники энергии»</p><p>Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Mola Akhmed Khusseyn, PhD student, research Engineer of the Department of Nuclear Power Plants and Renewable Energy Sources</p><p>Yekaterinburg, Mira st., 19 </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>Щеклеин</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcheklein</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щеклеин Сергей Евгеньевич, заведующий кафедрой «Атомные станции и возобновляемые источники энергии», профессор, доктор технических наук</p><p>Екатеринбург, ул. Мира, 19, +7 902 442 1547 </p></bio><bio xml:lang="en"><p>Shcheklein Sergey Evgenievich, Head of the Department of Nuclear Power Plants and Renewable Energy Sources. Doctor of technical science, professor, Doctor of Technical Sciences</p><p>Yekaterinburg, Mira st., 19, +7 902 442 1547 </p></bio><email xlink:type="simple">s.e.shcheklein@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б. Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after the first President of Russia B. N. Yeltsin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>12</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>9</issue><fpage>29</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Международный издательский дом научной периодики "Спейс, 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Международный издательский дом научной периодики "Спейс</copyright-holder><copyright-holder xml:lang="en">Международный издательский дом научной периодики "Спейс</copyright-holder><license xlink:href="https://www.isjaee.com/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.isjaee.com/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.isjaee.com/jour/article/view/2713">https://www.isjaee.com/jour/article/view/2713</self-uri><abstract><p>В настоящем исследовании предлагается новая технология повышения эффективности солнечных водонагревательных систем с использованием греющего пародинамического контура. Данный вариант ассимиляции солнечной энергии и передачи полученной теплоты в объем нагреваемой воды основан на применении пародинамического эффекта, сущность которого состоит в применении греющего контура, частично (20-30% объема контура) заполненного низкокипящей жидкостью (НКЖ), пары которой поступают в теплообменник-конденсатор, размещенный в баке-бассейне с нагреваемой водой. Приведены результаты анализа эффективности ряда НКЖ, позволившие выбрать оптимальные низкокипящие теплоносители. Экспериментально исследована эффективность водонагревательных систем с пародинамическим контуром, показавшая значительное повышение температуры воды в суточном цикле при использовании в качестве НКЖ промежуточного контура бензин и ацетон. Доказано, что предложенная технологическая схема нагрева воды с использованием пародинамического контура с низкокипящим теплоносителем позволяет осуществлять эффективный перенос теплоты без применения насосного оборудования с использованием солнечных коллекторов простейшего типа, что снижает стоимость и эксплуатационные расходы установки солнечного нагрева воды.</p></abstract><trans-abstract xml:lang="en"><p>This study proposes a new technology for increasing the efficiency of solar water heating systems using a heating vapor dynamic circuit. The variant of assimilation of solar energy and transfer of the obtained heat into the volume of heated water is considered based on the application of the paradynamic effect, the essence of which is the use of a heating circuit, partially (20-30% of the circuit volume) filled with a low-boiling liquid (ELF), the vapors of which enter the heat exchanger-condenser located in the tank-pool with heated water. The results of the analysis of the efficiency of a number of CALs are presented, which made it possible to select the optimal low-boiling coolants. The efficiency of water heating systems with a vapor-dynamic circuit was experimentally investigated, which showed a significant increase in water temperature in the daytime cycle when gasoline and acetone were used as an intermediate circuit. It is shown that the proposed technological scheme of water heating using a vapor-dynamic circuit with a low-boiling coolant allows for effective heat transfer without the use of pumping equipment using solar collectors of the simplest type, which reduces the cost and operating costs of the solar water heating installation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>солнечная энергия</kwd><kwd>пародинамический контур</kwd><kwd>бензин</kwd><kwd>ацетон</kwd><kwd>низкокипящая жидкость</kwd><kwd>эффективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>solar energy</kwd><kwd>paradynamic control</kwd><kwd>gasoline</kwd><kwd>acetone</kwd><kwd>low-boiling liquid</kwd><kwd>efficiency</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">Валов М. И., Казанджан Б. И. 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