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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">avroen</journal-id><journal-title-group><journal-title xml:lang="ru">Омский научный вестник. Серия "Авиационно-ракетное и энергетическое машиностроение"</journal-title><trans-title-group xml:lang="en"><trans-title>Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2588-0373</issn><issn pub-type="epub">2587-764X</issn><publisher><publisher-name>Омский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25206/2588-0373-2023-7-1-9-17</article-id><article-id custom-type="elpub" pub-id-type="custom">avroen-49</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>ЭНЕРГЕТИЧЕСКОЕ И ХИМИЧЕСКОЕ МАШИНОСТРОЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER AND CHEMICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Оценка степени влияния фактора подвижности стенок щели при расчёте величины протечек в рабочей части спирального компрессора. Часть 1</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of the influence of gap wall mobility factor at calculation of leakage in working section of a scroll compressor. Part 1</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>Пронин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pronin</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пронин Владимир Александрович - доктор технических наук, профессор (Россия), профессор образовательного центра «Энергоэффективные инженерные системы» Университета ИТМО, SPIN-код: 3737-3495. AuthorID (РИНЦ): 70616. AuthorID (SCOPUS): 57188556577. ResearcherID: F-4743-2019.</p><p>191002, Санкт-Петербург, ул. Ломоносова, д. 9</p></bio><bio xml:lang="en"><p>Pronin Vladimir Aleksandrovich - Doctor of Technical Sciences, Professor of Educational Centre «Energy Efficient Engineering Systems», ITMO University. SPIN-code: 3737-3495. AuthorID (RSCI): 706161. AuthorID (SCOPUS): 57188556577. ResearcherID: F-4743-2019.</p><p>St. Petersburg, Lomonosova str., 9, 191002</p></bio><email xlink:type="simple">maior.pronin@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2821-795X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кованов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кованов Александр Викторович - аспирант образовательного центра «Энергоэффективные инженерные системы» Университета ИТМО.</p><p>191002, Санкт-Петербург, ул. Ломоносова, д. 9</p></bio><bio xml:lang="en"><p>Kovanov Alexander Victorovich - Graduate Student of Educational Centre «Energy Efficient Engineering Systems», ITMO University.</p><p>St. Petersburg, Lomonosova str., 9, 191002</p></bio><email xlink:type="simple">avkovanov@itmo.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>Цветков</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsvetkov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цветков Вадим Александрович - аспирант, ассистент образовательного центра «Энергоэффективные инженерные системы» Университета ИТМО.</p><p>191002, Санкт-Петербург, ул. Ломоносова, д. 9</p></bio><bio xml:lang="en"><p>Tsvetkov Vadim Aleksandrovich - Graduate Student, Assistant of Educational Centre «Energy Efficient Engineering Systems», ITMO University.</p><p>St. Petersburg, Lomonosova str., 9, 191002</p></bio><email xlink:type="simple">wadimtsvetkov@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>Михайлова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михайлова Екатерина Николаевна - аспирант образовательного центра «Энергоэффективные инженерные системы» Университета ИТМО.</p><p>191002, Санкт-Петербург, ул. Ломоносова, д. 9</p></bio><bio xml:lang="en"><p>Mikhailova  Ekaterina     Nikolaevna - Graduate Student of Educational Centre «Energy Efficient Engineering Systems», ITMO University.</p><p>St. Petersburg, Lomonosova str., 9, 191002</p></bio><email xlink:type="simple">mikhaylova_en@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>Калашникова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalashnikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калашникова Елена Анатольевна, аспирант образовательного центра «Энергоэффективные инженерные системы» Университета ИТМО.</p><p>191002, Санкт-Петербург, ул. Ломоносова, д. 9</p></bio><bio xml:lang="en"><p>Kalashnikova Elena Anatolievna - Graduate Student of Educational Centre «Energy Efficient Engineering Systems», ITMO University.</p><p>St. Petersburg, Lomonosova str., 9, 191002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Университет ИТМО<country>Россия</country></aff><aff xml:lang="en">ITMO University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Университет ИТМО<country>Россия</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2023</year></pub-date><volume>7</volume><issue>1</issue><fpage>9</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пронин В.А., Кованов А.В., Цветков В.А., Михайлова Е.Н., Калашникова Е.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Пронин В.А., Кованов А.В., Цветков В.А., Михайлова Е.Н., Калашникова Е.А.</copyright-holder><copyright-holder xml:lang="en">Pronin V.A., Kovanov A.V., Tsvetkov V.A., Mikhailova E.N., Kalashnikova E.A.</copyright-holder><license 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://ariem.omgtu.ru/jour/article/view/49">https://ariem.omgtu.ru/jour/article/view/49</self-uri><abstract><p>Спиральный тип компрессора нашел широкое применение в сегменте средней производительности в области холодильной и климатической техники, включая тепловые насосы. Сегодня в этой области идет активный процесс перехода с гидрофторуглеродов на натуральные хладагенты с низким потенциалом глобального потепления. Все больше возрастает роль СО2, который отличается низкой критической точкой и, соответственно, высокими рабочими давлениями. Для работы на новых хладагентах спиральный компрессор должен быть адаптирован с учетом всех конструктивных особенностей, основной из которых являются зазоры в проточной части машины. Следует учитывать, что термодинамические свойства диоксида углерода, отличные от гидрофторуглеродов, оказывают существенное влияние на объемные и энергетические показатели компрессора. В данном случае актуальность заключается в повышении точности расчета потерь компрессора и прогноза характеристик холодильной машины. Так как основными объемными потерями в спиральном компрессоре являются протечки рабочего вещества в его рабочей части, а сам процесс течения среды нестационарный, то интерес вызывает их количественная составляющая. Целью настоящей работы является уточнение физических основ процесса протечек в радиальном зазоре и степени влияния на него различных факторов. Такой анализ дает дальнейшую возможность уточнения методики расчета протечек компримируемой среды с учетом фактора подвижности стенок щелей. Это повысит точность получаемых результатов, которые могут служить базой к прогнозу оптимальных характеристик компрессора за счет их аппроксимации и позволит оптимизировать проектирование холодильных машин при выбранных режимах работы.</p></abstract><trans-abstract xml:lang="en"><p>The scroll type compressor is widely used in the medium capacity segment of refrigeration and air conditioning technology including heat pumps. Today there is an active process of changing from hydrofluorocarbons to natural refrigerants with low global warming potential. CO2, with its low critical point and correspondingly high operating pressures, is gaining in importance. For operation with new refrigerants, the scroll compressor has to be adapted to take account of all its design features, the most important of which are the clearances in the machine's flow area. It has to be considered that the thermodynamic properties of carbon dioxide, different from hydrofluorocarbons, have a significant influence on the volume and energy values of the compressor. In this case relevance consists in increase of accuracy of compressor losses calculation and prediction of refrigeration machine characteristics. As the basic volumetric losses in the scroll compressor are leakages of working substance in its working part, and the process of flow of medium is unsteady, their quantitative component causes interest. The purpose of this work is to clarify the physical basis of the leakage process in the radial clearance and the degree of influence of various factors on it. Such analysis gives further opportunity to refine the methodology of calculation of leakages of compressed medium, taking into account the mobility factor of gap walls. It will raise accuracy of the received results which can serve as a base to prognosis of optimum characteristics of the compressor, due to their approximation and will allow to optimize designing of refrigerating machines at the chosen modes of work.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спиральный компрессор</kwd><kwd>протечки рабочей среды</kwd><kwd>нестационарное течение</kwd><kwd>рабочий зазор</kwd><kwd>подвижность стенок щели</kwd><kwd>динамика протечек</kwd></kwd-group><kwd-group xml:lang="en"><kwd>scroll compressor</kwd><kwd>working medium leakage</kwd><kwd>unsteady flow</kwd><kwd>working gap</kwd><kwd>gap wall mobility</kwd><kwd>leakage dynamics</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">Пронин В. А., Кованов А. В., Калашникова Е. А., Цветков В. А. 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