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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">10.21822/2073-6185-2023-50-1-42-52</article-id><article-id custom-type="elpub" pub-id-type="custom">vdgtu-1215</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>К вопросу оптимизации рабочих характеристик спирального компрессора в составе бустерной холодильной машины на СО2 с целью повышения ее эффективности</article-title><trans-title-group xml:lang="en"><trans-title>To the issue of optimising the performance of a scroll compressor as part of a CO2 booster refrigerating machine in order to increase its efficiency</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, ординарный профессор образовательного центра «Энергоэффективные инженерные системы» </p><p>197101, г. Санкт-Петербург, Кронверкский просп., 49</p></bio><bio xml:lang="en"><p>Vladimir A. Pronin, Dr. Sci. (Eng.), Prof., Ordinary Prof., Educational Center "Energy Efficient Engineering Systems"</p><p>49 Kronverksky Ave., Saint Petersburg 197101</p></bio><email xlink:type="simple">vapronin@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>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» </p><p>197101, г. Санкт-Петербург, Кронверкский просп., 49</p></bio><bio xml:lang="en"><p>Alexander V. Kovanov, Postgraduate Student, Educational Center "Energy Efficient Engineering Systems"</p><p>49 Kronverksky Ave., Saint Petersburg 197101</p></bio><email xlink:type="simple">Kovanov76@yandex.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 «Энергоэффективныеинженерные системы» </p><p>197101, г. Санкт-Петербург, Кронверкский просп., 49</p></bio><bio xml:lang="en"><p>Vadim A. Tsvetkov, postgraduate student, assistant of the educational center "Energy Efficient EngineeringSystems"</p><p>49 Kronverksky Ave., Saint Petersburg 197101</p></bio><email xlink:type="simple">wadimtsvetkov@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>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»</p><p>197101, г. Санкт-Петербург, Кронверкский просп., 49</p></bio><bio xml:lang="en"><p>Ekaterina N. Mikhailova, Postgraduate Student, Educational Center "Energy Efficient Engineering Systems"</p><p>49 Kronverksky Ave., Saint Petersburg 197101</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>Белов</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белов Павел Андреевич, магистрант образовательного центра «Энергоэффективные инженерные системы» </p><p>197101, г. Санкт-Петербург, Кронверкский просп., 49</p></bio><bio xml:lang="en"><p>Pavel A. Belov, master student of the educational center "Energy Efficient Engineering Systems"</p><p>49 Kronverksky Ave., Saint Petersburg 197101</p></bio><email xlink:type="simple">mr.belofff99@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>08</day><month>05</month><year>2023</year></pub-date><volume>50</volume><issue>1</issue><fpage>42</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пронин В.А., Кованов А.В., Цветков В.А., Михайлова Е.Н., Белов П.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., Белов П.А.</copyright-holder><copyright-holder xml:lang="en">Pronin V.A., Kovanov A.V., Tsvetkov V.A., Mikhailova E.N., Belov P.A.</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/1215">https://vestnik.dgtu.ru/jour/article/view/1215</self-uri><abstract><sec><title>Цель</title><p>Цель. В условиях сокращения применения хладагентов с высоким потенциалом глобального потепления повышение эффективности холодильных машин, использующих натуральные хладагенты, является весьма актуальной задачей. Так, например, цикл бустерной холодильной машины на СО2 может быть оптимальным для сфер коммерческого холода, климатехники и тепловых насосов, но требует адаптации к регионам с жарким климатом. Целью исследования также является и систематизация возможных способов совершенствования спиральной технологии, как залог повышения эффективности бустерных холодильных машин. Такие решения уже апробированы за счёт использования эжектора и параллельного сжатия, что повышает эффективность использования транскритического цикла.</p></sec><sec><title>Метод</title><p>Метод. Применение спирального компрессора в транскритическом цикле, может являться хорошей альтернативой данным способам. Подобное решение, несколько улучшает технико-экономические показатели холодильной машины, в большей части снижая капитальные и эксплуатационные затраты. Рассматривая перспективу повышения эффективности бустерной системы со спиральным компрессором, следует обратиться к вопросу оптимизации характеристик компрессора. Данную задачу можно отнести к разряду повышения эффективности холодильной машины за счёт её внутренних характеристик.</p></sec><sec><title>Результат</title><p>Результат. Рассмотрен концептуальный подход к решению данной проблемы на основе системного анализа влияния характеристик компрессора, как основного энергоёмкого элемента холодильной машины, на параметры её работы.</p></sec><sec><title>Вывод</title><p>Вывод. Разработка концептуальной модели позволяет идентифицировать степень влияния различных факторов на работу спирального компрессора, повысить адекватность математической модели за счёт выбора определяющих факторов, использовать необходимые методики расчёта.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. With the decreasing use of refrigerants with a high global warming potential, increasing the efficiency of refrigeration machines using natural working fluids is a very urgent task. The CO2 booster refrigerant cycle may be optimal for the fields of commercial refrigeration, climate engineering and heat pumps, but needs to be adapted to regions with hot climates. The purpose of the study is also to systematize possible ways to improve the spiral technology, as a guarantee of increasing the efficiency of booster refrigeration machines.</p></sec><sec><title>Method</title><p>Method. Such solutions have already been tested by increasing the transcritical cycle efficiency through the use of an ejector and parallel compression. However, the use of a scroll compressor in the transcritical cycle may be a good alternative to these methods. This solution, a little bit improves technical and economic indexes of the refrigerating machine, in the most part reducing capital and operational costs. When considering the prospect of improving the efficiency of a booster system with scroll compressor, it is necessary to address the issue of compressor performance optimisation. An issue of this kind can be referred to improving the efficiency of the booster system, at the expense of the internal characteristics of the refrigeration machine.</p></sec><sec><title>Result</title><p>Result. Thus, in this paper, a conceptual approach is considered to solve this problem based on a system analysis of the interconnection of the compressor as the main energy-intensive element of a refrigeration machine.</p></sec><sec><title>Conclusion</title><p>Conclusion. Development of conceptual model, allows to identify influence of various factors on scroll compressor operation and to build adequate mathematical model, to choose or develop necessary calculation methods.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>спиральный компрессор</kwd><kwd>протечки</kwd><kwd>бустерная холодильная машина</kwd><kwd>транскритический цикл</kwd><kwd>СО2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>scroll compressor</kwd><kwd>leaks</kwd><kwd>booster chiller</kwd><kwd>transcritical cycle</kwd><kwd>CO2</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">Refrigeration portal. S. Y. 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