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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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8358-2018-63-1-93-100</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-366</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, ТЕПЛО- И МАССООБМЕН</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING, HEAT AND MASS TRANSFER</subject></subj-group></article-categories><title-group><article-title>ТЕРМОДИНАМИЧЕСКАЯ ЭФФЕКТИВНОСТЬ ДЕТОНАЦИОННОГО ДВИГАТЕЛЯ</article-title><trans-title-group xml:lang="en"><trans-title>THERMODYNAMICAL EFFICIENCY OF A DETONATION ENGINE</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>Халед</surname><given-names>Альхусан</given-names></name><name name-style="western" xml:lang="en"><surname>Khaled</surname><given-names>Alhussan</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук, директор</p></bio><bio xml:lang="en"><p>Ph. D. (Physics and Mathematics), Director of the National Center for Aeronautical Technology, KACST, Saudi Arabia, National Center for Aeronautical Technology (KACST)</p></bio><email xlink:type="simple">kalhussan@kacst.edu.sa</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>Ассад</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Assad</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, ведущий научный сотрудник</p></bio><bio xml:lang="en"><p>D. Sc. (Engineering), Leading Researcher</p></bio><email xlink:type="simple">assad@hmti.ac.by</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>Пенязьков</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Penyazkov</surname><given-names>O. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик Национальной академии наук Беларуси, доктор физико-математиче- ских наук, директор</p></bio><bio xml:lang="en"><p>Academician of the National Academy of Sciences of Belarus, D. Sc. (Physics and Mathematics), Director</p></bio><email xlink:type="simple">penyaz@dnp.itmo.by</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>Чернухо</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernuho</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, младший научный сотрудник</p></bio><bio xml:lang="en"><p>Ph. Student, Junior Researcher</p></bio><email xlink:type="simple">chernuho.ivan@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный центр аэрокосмических исследований, KACST</institution></aff><aff xml:lang="en"><institution>King Abdulaziz City for Science and Technology, KACST</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт тепло- и массообмена имени А.В. Лыкова Национальной академии наук Беларуси, Минск</institution></aff><aff xml:lang="en"><institution>A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus, Minsk</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>05</day><month>04</month><year>2018</year></pub-date><volume>63</volume><issue>1</issue><fpage>93</fpage><lpage>100</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Халед А., Ассад М.С., Пенязьков О.Г., Чернухо И.И., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Халед А., Ассад М.С., Пенязьков О.Г., Чернухо И.И.</copyright-holder><copyright-holder xml:lang="en">Khaled A., Assad M.S., Penyazkov O.G., Chernuho I.I.</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://vestift.belnauka.by/jour/article/view/366">https://vestift.belnauka.by/jour/article/view/366</self-uri><abstract><p>Предпринята попытка качественно и количественно проанализировать термодинамический цикл детонационного сгорания и сопоставить его с циклами Отто и Брайтона с целью установления степени его термо-динамического совершенства. Сравнение термодинамических циклов Отто, Брайтона и детонационного сгорания производилось по эквивалентным циклам Карно, обладающим той же степенью термодинамического совершенства, что и исследуемые циклы. Для определения параметров детонационного цикла использована классическая теория детонации, основанная на законах термодинамики и газодинамики. Показано, что детонационный цикл по сравнению с циклами Брайтона и Отто имеет бóльшую энтропию в конце подвода тепла и меньшую в конце отвода тепла. Это означает, что он обладает более высокой среднеинтегральной температурой подвода теплоты и более низкой среднеинтегральной температурой отвода теплоты. Так, в диапазоне характерных значений показателя адиабаты k температура в конце процесса сообщения тепла в цикле детонационного сгорания превышает температуру цикла Отто примерно на 7–15 %. Следовательно, детонационный цикл термически более эффективен, поскольку термический КПД цикла увеличивается с расширением температурных границ эквивалентного цикла Карно.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>An attempt has been made to analyze qualitatively and quantitatively the thermodynamic cycle of detonative combustion and to compare it with the Otto and Brayton cycles in order to establish the degree of its thermodynamic perfection. A comparison of the thermodynamic cycles of Otto, Brayton, and detonation was carried out for equivalent Carnot cycles, which has the same degree of thermodynamic perfection as the investigated cycles. To determine the parameters of the detonation cycle, the classical detonation theory based on the laws of thermodynamics and gasdynamics was used. It is shown that the detonation cycle in comparison with the cycles of Brayton and Otto has larger entropy at the end of the heat supply and smaller one at the end of the heat removal. That means it has a higher mean-integral temperature of heat input and a lower mean-integral temperature of heat removal. Thus, in the range of characteristic values of the adiabatic index k, the temperature at the end of the heat input process in the detonation cycle exceeds the Otto cycle temperature by about 7–15 %. Consequently, the detonation cycle is thermally more efficient, since the thermal efficiency of the cycle increases with the expansion of the temperature boundaries of the equivalent Carnot cycle.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>термодинамический КПД</kwd><kwd>детонационный цикл</kwd><kwd>цикл Отто</kwd><kwd>цикл Брайтона</kwd><kwd>среднеинтегральная температура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thermodynamic efficiency</kwd><kwd>detonation cycle</kwd><kwd>Otto cycle</kwd><kwd>Brayton cycle</kwd><kwd>mean-integral temperature</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">Heterogeneous catalytic decomposition of JP-10: for use in a pulsed engine / C. E. Galligan [et al.] // Хим. физика. –2005. – Т. 24, № 7. – С. 91–96.</mixed-citation><mixed-citation xml:lang="en">Galligan C. E., Duboisy C., Stowe R., Kaliaguine S., Niaki H. 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