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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2017-2-164-169</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1027</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>ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ И АВТОМАТИЗАЦИЯ В ЧЕРНОЙ  МЕТАЛЛУРГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFORMATION TECHNOLOGIES AND AUTOMATIC CONTROL IN FERROUS METALLURGY</subject></subj-group></article-categories><title-group><article-title>РАСЧЕТ ТЕМПЕРАТУР И ТЕРМИЧЕСКИХ НАПРЯЖЕНИЙ ПРИ КОЭФФИЦИЕНТЕ ТЕПЛООБМЕНА, ЗАВИСЯЩЕМ ОТ ТЕМПЕРАТУРЫ ПОВЕРХНОСТИ ТЕЛА</article-title><trans-title-group xml:lang="en"><trans-title>CALCULATION OF THE TEMPERATURE AND THERMAL STRESS AT HEAT TRANSFER COEFFICIENT DEPENDING ON THE TEMPERATURE OF BODY SURFACE</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>Горбунов</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbunov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор технических наук, профессор кафедры «Теплоэнергетика»</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Professor, Head of the Chair of Thermal Power</p></bio><email xlink:type="simple">gorbunov@tpte.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>Уклеина</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ukleina</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аспирант кафедры «Теплоэнергетика»</p></bio><bio xml:lang="en"><p>Postgraduate of the Chair of Thermal Power</p></bio><email xlink:type="simple">84sveta28@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Днепродзержинский государственный технический университет</institution><country>Украина</country></aff><aff xml:lang="en"><institution>Dneprodzerzhinsk State Technical University</institution><country>Ukraine</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>01</day><month>03</month><year>2017</year></pub-date><volume>60</volume><issue>2</issue><fpage>164</fpage><lpage>169</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горбунов А.Д., Уклеина С.В., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Горбунов А.Д., Уклеина С.В.</copyright-holder><copyright-holder xml:lang="en">Gorbunov A.D., Ukleina S.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://fermet.misis.ru/jour/article/view/1027">https://fermet.misis.ru/jour/article/view/1027</self-uri><abstract><p>Впервые записана математическая постановка задачи, учитывающая зависимость коэффициента теплоотдачи от температуры поверхности в случае нагрева (охлаждения) тел правильной геометрической формы в виде неограниченной пластины, цилиндра и шара при свободной конвекции в неограниченном объеме, тем самым делая задачу теплопроводности нелинейной. Получено решение для модели термически тонкого тела. Разработана методика расчета температур поверхности на начальной стадии. На основе интегральных линеаризующих преобразований разработана инженерная методика расчета полей температур и осевых термических напряжений в квазистационарной стадии нагрева (охлаждения) тел правильной геометрической формы при коэффициенте теплообмена, зависящем от температуры поверхности по степенному закону в зависимости от режима свободной конвекции: ламинарного, переходного или турбулентного. Проверка решений на модели постоянного коэффициента теплоотдачи показала, что погрешность решений является приемлемой для инженерных расчетов, а неучет зависимости коэффициента теплоотдачи от температуры может привести к большим неточностям. Приведены формулы для расчета осевых термических напряжений в любой точке тела, на поверхности и в центре.</p></abstract><trans-abstract xml:lang="en"><p>The mathematical problem definition considering dependence of heat transfer coefficient on surface temperature in case of heating (chilling) of bodies of the correct geometrical form in the form of an unrestricted plate, cylinder or sphere, in case of free convection in unrestricted amount was for the first time written down, thereby making the task of heat conductivity nonlinear. The decision for model of thermally thin body was received. The calculation method for the surface temperatures at initial stage was developed. On the basis of the integrated linearizing transformations the engineering method of fields of temperatures and axial thermal tension in a quasistationary stage of heating (chilling) of bodies of the correct geometrical form was developed for the case of the heat exchange coefficient depending on surface temperature under the sedate law according to the mode of free convection: laminar, transitional or turbulent. Verification of decisions on model of fixed heat transfer coefficient have shown that the error of decisions is acceptable for engineering calculations, and not accounting of the dependence of heat transfer coefficient on temperature can result in big inaccuracies. Formulas for calculation of axial thermal tension are given for any point of the body: on a surface and in the center.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нагрев</kwd><kwd>охлаждение</kwd><kwd>тела канонической формы</kwd><kwd>начальная и квазистационарная стадии</kwd><kwd>коэффициент теплообмена</kwd><kwd>зависящий от температуры поверхности</kwd><kwd>температурные поля</kwd><kwd>термические напряжения</kwd><kwd>инженерная методика расчета</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heating</kwd><kwd>cooling</kwd><kwd>bodies of an initial form</kwd><kwd>initial and quasistationary stages</kwd><kwd>heat transfer coefficient</kwd><kwd>surface temperature</kwd><kwd>temperature fields</kwd><kwd>thermal tension</kwd><kwd>engineering calculation</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">Саломатов В.В., Гончаров Э.И. 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