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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Доклады Академии наук</journal-id><journal-title-group><journal-title xml:lang="en">Доклады Академии наук</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-5652</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">16070</article-id><article-id pub-id-type="doi">10.31857/S0869-56524882162-166</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physical chemistry</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физическая химия</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Deflagration-to-detonation transition in air mixtures of polypropylene pyrolysis products</article-title><trans-title-group xml:lang="ru"><trans-title>Переход горения в детонацию в воздушных смесях продуктов пиролиза полипропилена</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Frolov</surname><given-names>S. M.</given-names></name><name xml:lang="ru"><surname>Фролов</surname><given-names>С. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zvegintsev</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Звегинцев</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Aksenov</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Аксенов</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bilera</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Билера</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kazachenko</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Казаченко</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shamshin</surname><given-names>I. O.</given-names></name><name xml:lang="ru"><surname>Шамшин</surname><given-names>И. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gusev</surname><given-names>P. A.</given-names></name><name xml:lang="ru"><surname>Гусев</surname><given-names>П. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff7"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Belotserkovskaya</surname><given-names>M. S.</given-names></name><name xml:lang="ru"><surname>Белоцерковская</surname><given-names>М. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sergei@frolovs.ru</email><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff8"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр химической физики имени Н.Н. Семенова Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution></aff><aff><institution xml:lang="ru">"Национальный исследовательский ядерный университет МИФИ"</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Scientific Research Institute for System Analysis of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">"Федеральный научный центр Научно-исследовательский институт системных исследований Российской академии наук"</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">"Институт теоретической и прикладной механики имени С.А. Христиановича" Сибирского отделения Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">A.V.Topchiev Institute of Petrochemical Synthesis of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт нефтехимического синтеза имени А.В. Топчиева Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Bauman Moscow State Technical University</institution></aff><aff><institution xml:lang="ru">"Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)"</institution></aff></aff-alternatives><aff-alternatives id="aff7"><aff><institution xml:lang="en">Joint Institute of High Temperature of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Объединённый институт высоких температур Российской академии наук</institution></aff></aff-alternatives><aff-alternatives id="aff8"><aff><institution xml:lang="en">Institute for Computer Aided Design</institution></aff><aff><institution xml:lang="ru">Институт автоматизации проектирования Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-09-24" publication-format="electronic"><day>24</day><month>09</month><year>2019</year></pub-date><volume>488</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>162</fpage><lpage>166</lpage><history><date date-type="received" iso-8601-date="2019-09-16"><day>16</day><month>09</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-09-16"><day>16</day><month>09</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Russian academy of sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Российская академия наук</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Russian academy of sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-5652/article/view/16070">https://journals.eco-vector.com/0869-5652/article/view/16070</self-uri><abstract xml:lang="en"><p>A new method for determining the detonability of fuel is proposed based on the measured values ​​of the detonation run-up distance and time in the standard pulsed detonation tube (PDT). Granulated polypropylene (GP) was used as a fuel. A test bench with the PDT and a gas generator was designed and manufactured for the preparation of the GP pyrolysis products at a decomposition temperature of up to 800 °C. Experiments on deflagration-to-detonation transition in air mixtures of pyrolysis products of the GP showed that such mixtures exhibit detonability close to that of liquefied hydrocarbon gas (LPG) of the propane-butane automobile brand in a stoichiometric mixture with air under normal conditions.</p></abstract><trans-abstract xml:lang="ru"><p>Предложен новый способ определения детонационной способности горючего: на основании измеренных значений длины и времени перехода горения в детонацию (ПГД) в эталонной импульсно-детонационной трубе (ЭДТ). В качестве горючего использован гранулированный полипропилен (ГП). Спроектирован и изготовлен испытательный стенд с ЭДТ и газогенератором для получения продуктов пиролиза ГП при температуре разложения до 800 °С. Проведены эксперименты по изучению ПГД в воздушных смесях продуктов пиролиза ГП. Показано, что продукты пиролиза ГП обладают детонационной способностью, близкой к таковой у сжиженного углеводородного газа (СУГ) марки ПБА - пропан-бутан автомобильный - в стехиометрической смеси с воздухом при нормальных условиях.</p></trans-abstract><kwd-group xml:lang="en"><kwd>detonability</kwd><kwd>standard pulsed detonation tube</kwd><kwd>granulated polypropylene</kwd><kwd>pyrolysis products</kwd><kwd>fuel-air mixture</kwd><kwd>deflagration-to-detonation transition</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>детонационная способность</kwd><kwd>эталонная импульсно-детонационная труба</kwd><kwd>гранулированный полипропилен</kwd><kwd>продукты пиролиза</kwd><kwd>топливно-воздушная смесь</kwd><kwd>переход горения в детонацию</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="en">Russian Foundation for Basic Research</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Российский фонд фундаментальных исследований</institution></institution-wrap></funding-source><award-id></award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="en">State task</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Государственное задание</institution></institution-wrap></funding-source><award-id></award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="en">State task</institution></institution-wrap><institution-wrap><institution xml:lang="ru">Государственное задание</institution></institution-wrap></funding-source><award-id></award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Фролов С.М. 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