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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">10.30724/1998-9903-2019-21-6-84-92</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-1262</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Моделирование конденсационной установки в среде ASPEN PLUS</article-title><trans-title-group xml:lang="en"><trans-title>Simulation of condensation unit in ASPEN PLUS</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>Михин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михин Антон Александрович – аспирант</p><p>г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anton A. Mikhin</p><p>Saint Petersburg</p></bio><email xlink:type="simple">Mikhanton89@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>Сергеев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sergeev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергеев Виталий Владимирович – д-р техн. наук, профессор, проректор по научной работе</p><p>г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vitaliy V. Sergeev</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great St. Petersburg Polytechnic University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>21</day><month>04</month><year>2020</year></pub-date><volume>21</volume><issue>6</issue><fpage>84</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Михин А.А., Сергеев В.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Михин А.А., Сергеев В.В.</copyright-holder><copyright-holder xml:lang="en">Mikhin A.A., Sergeev V.V.</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/1262">https://www.energyret.ru/jour/article/view/1262</self-uri><abstract><p>В статье рассмотрена схема глубокой утилизации теплоты дымовых газов. Установлено, что в котельных агрегатах, работающих на природном газе, единственным путем существенного улучшения использования топлива является глубокое охлаждение продуктов сгорания до такой температуры, при которой удается сконденсировать максимально возможную часть паров, содержащихся в газах. Для анализа основных энергетических показателей конденсационной установки и оптимизации ее режимов работы было выполнено моделирование приоритетной схемы в среде Aspen Plus. В настоящей схеме присутствуют тройники, теплообменники и реактор (топка котла). Настройка тройников (смесителей) осуществляется путем задания расходов или долей двух потоков, входящих или выходящих из элемента. Топка котла моделируется в качестве реактора Гиббса, который рассчитывает химическое и термодинамическое равновесие за счет минимизации разницы энергии Гиббса продуктов и исходных веществ. С помощью компьютерной программы Aspen Plus было выполнено моделирование схемы конденсационной установки на котельном агрегате ПТВМ-100 с уточнением оптимальных режимных параметров материальных потоков и теплообменного оборудования. Проведенные расчет показывают, что при использовании конденсационного котла достигается тройной энергетический эффект: используется физическая теплота уходящих газов; используется выделяющаяся при конденсации скрытая теплоту парообразования; используется конденсат, выделяющийся из дымовых газов. </p></abstract><trans-abstract xml:lang="en"><p>The article discusses the scheme of deep utilization of the heat of flue gases. It has been established that in boiler units operating on natural gas, the only way to significantly improve the use of fuel is to deeply cool the combustion products to a temperature at which it is possible to condense the maximum possible portion of the fumes contained in the gases. To analyze the main energy indicators of the condensing unit and optimize its operating modes, a priority scheme was simulated in Aspen Plus. In this scheme, there are tees, heat exchangers and a reactor (boiler furnace). The configuration of tees (mixers) is carried out by setting the costs or fractions of two flows entering or leaving the element. The boiler furnace is modeled as a Gibbs reactor, which calculates the chemical and thermodynamic equilibrium by minimizing the difference in the Gibbs energy of the products and the starting materials. Using the Aspen Plus computer program, the condensation unit circuit was simulated at the PTVM-100 boiler unit with the specification of the optimal operating parameters of material flows and heat exchange equipment. The calculations show that when using a condensing boiler, a triple energy effect is achieved: the physical heat of the flue gases is used; the latent heat of vaporization released during condensation is used; the condensate released from the flue gases is used. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>конденсационный котел</kwd><kwd>котельные агрегаты</kwd><kwd>теплогенераторы</kwd><kwd>дымовые газы</kwd><kwd>теплообменное оборудование</kwd><kwd>математическая модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>condenser</kwd><kwd>boiler</kwd><kwd>flue gases</kwd><kwd>heat generators</kwd><kwd>heat exchangers</kwd><kwd>mathematic model</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">Kovacevic.M., Lambic M., Radovanovic L, et al. 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