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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">probener</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИ</journal-title><trans-title-group xml:lang="en"><trans-title>Power engineering: research, equipment, technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-9903</issn><issn pub-type="epub">2658-5456</issn><publisher><publisher-name>Kazan State Power Engineering  University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30724/1998-9903-2022-24-6-133-142</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-2445</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>ТЕОРЕТИЧЕСКАЯ И ПРИКЛАДНАЯ ТЕПЛОТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORETICAL AND APPLIED HEAT ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Особенности теплонапряженности машинного зала при отключении системы отопления</article-title><trans-title-group xml:lang="en"><trans-title>Engine room thermal density specials in heating systems shutdow process</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0419-4522</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Разаков</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Razakov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Разаков Мухаммет Азатович – ассистент кафедры «Энергетические и Гидротехнические Сооружения» (ЭГТС); старший преподаватель кафедры «Инженерия процессов, аппаратов, холодильной техники и технологии»</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Muhammet A. Razakov</p><p>Moscow</p></bio><email xlink:type="simple">RazakovMA@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский энергетический институт; Российский биотехнологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Power Engineering Institute; Russian Biotechnological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2023</year></pub-date><volume>24</volume><issue>6</issue><fpage>133</fpage><lpage>142</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Разаков М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Разаков М.А.</copyright-holder><copyright-holder xml:lang="en">Razakov M.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://www.energyret.ru/jour/article/view/2445">https://www.energyret.ru/jour/article/view/2445</self-uri><abstract><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Рассмотреть влияние отключения системы отопления на теплонапряженность машинного зала высоковольтной городской канализационной насосной станции. Определить, как влияет полное отключение системы отопления на тепловой режим рассматриваемого помещения при неизменных требованиях к тепловлажностным параметрам микроклимата внутреннего воздуха. Провести численный эксперимент моделирования стационарного теплового режима машинного зала с учетом основных технологических процессов в машинном зале высоковольтной городской канализационной насосной станции. Выполнить адаптацию разработанной модели теплового режима для моделирования отключения системы отопления. Рассмотреть распределение тепловых потерь помещения машинного зала при поддержании постоянной температуры воздуха.</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. При решении поставленной задачи применялся метод расчета проектного стационарного режима машинного зала, разработанный в прошлых работах автора.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. В статье описана актуальность темы, рассмотрена особенность изменения теплонапряженности машинного зала при отключении системы отопления и иных факторов. Приведены результаты расчета тепловых избытков при различном количестве работающих насосов и изменении температуры сточных вод.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Отключение системы отопления снижает теплонапряженность помещения машинного зала в среднем на 0,3-0,4 Вт/м3. Данный способ энергосбережения способствует снижению расхода тепловой энергии и рекомендуется к использованию в рассматриваемом помещении. Экономия от использования данного метода энергосбережения для рассматриваемого типа канализационной насосной станции при проектном режиме эксплуатации составляет 890 000 рублей в год.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>THE PURPOSE</title><p>THE PURPOSE. Consider the effect of heating system turning off process on the engine room thermal density in a high-voltage city sewage pumping station. Determine how the heating system shutdown affects to the considered room thermal regimes with unchanged requirements for the indoor air microclimate thermal and moisture parameters. Do a numerical experiment which simulates the stationary thermal regime of engine room and taking into account the main technological process in this room of a high-voltage city sewage pumpingstation. Perform adaptation of thermal regime developed model to simulate the heating system turning off process. Describe the distribution of heat losses in the engine room while maintaining a constant air temperature. METHODS. When solving the task, author has used the method of calculating the engine room design stationary mode.</p></sec><sec><title>RESULTS</title><p>RESULTS. Researcher describes the relevance of the topic, considers the specials of the change in the engine room thermal density when the heating system is turned of and other factors. Author has presented the results of the thermal excesses calculation for different numbers of operating pumps and changes in wastewater temperature.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The turning off process of the heating system reduces the thermal density of the engine room by an average of 0.3 - 0.4 W/m3. This method of energy saving helps to reduce the consumption of thermal energy and could be used in this part of sewage pumping station. The economical effect of proposed energy saving measurement will be in economical index reducing. It will be 890 000 rubles saving per year for this type of sewage pumping station in designed mode.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>теплонапряженность</kwd><kwd>тепловой режим</kwd><kwd>система водоотведения</kwd><kwd>высоковольтная канализационная насосная станция</kwd><kwd>тепловые избытки</kwd><kwd>система отопления</kwd><kwd>технологический процесс</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heat tension</kwd><kwd>thermal conditions</kwd><kwd>sewage system</kwd><kwd>high voltage sewage pumping station</kwd><kwd>thermal excesses</kwd><kwd>heating system</kwd><kwd>technological process</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">Filipe J., Bessa R. J., Reis M., et al. 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