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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">10.30724/1998-9903-2017-19-11-12-3-11</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-462</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>ИССЛЕДОВАНИЕ СМЕШАННОКОНВЕКТИВНОЙ ТЕПЛООТДАЧИ ОДНОРЯДНЫХ ВОЗДУХООХЛАЖДАЕМЫХ ТЕПЛООБМЕННИКОВ ПРИ РАЗЛИЧНЫХ ПОПЕРЕЧНЫХ ШАГАХ УСТАНОВКИ ТРУБ</article-title><trans-title-group xml:lang="en"><trans-title>INVESTIGATION OF A MIXED-CONVECTIVE HEAT TREATMENT OF SINGLEAIR AIR COOLED EXCHANGERS IN VARIOUS CROSS-STEPS PIPE INSTALLATION</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>Сухоцкий</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhotskii</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент, доцент кафедры энергосбережения, гидравлики и теплотехники</p></bio><bio xml:lang="en"><p>PhD (Engineering), Associate Professor, Assistant Professor in the Department of Energy Saving, Hydraulics and Heat Engineering</p></bio><email xlink:type="simple">alk2905@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>Сидорик</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sidorik</surname><given-names>G. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры энергосбережения, гидравлики и теплотехники</p><p> </p></bio><bio xml:lang="en"><p><ext-link xlink:href="http://www.multitran.ru/c/m.exe?t=4514086_1_2&amp;s1=%E0%F1%EF%E8%F0%E0%ED%F2" ext-link-type="uri">PhD studenti</ext-link>n the Department of Energy Saving, Hydraulics and Heat Engineering</p></bio><email xlink:type="simple">galiana.sidorik@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный технологический университет, г. Минск</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarussian state technological university, Minsk</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>01</day><month>04</month><year>2018</year></pub-date><volume>19</volume><issue>11-12</issue><fpage>3</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сухоцкий А.Б., Сидорик Г.С., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Сухоцкий А.Б., Сидорик Г.С.</copyright-holder><copyright-holder xml:lang="en">Sukhotskii A.B., Sidorik G.S.</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/462">https://www.energyret.ru/jour/article/view/462</self-uri><abstract/><trans-abstract xml:lang="en"><p>The article presents a study of single-row air-cooled heat exchangers consisting of bimetallic rolling aluminum finned tubes with different transverse steps of their installation, equipped with an additional intensifying device - a suction shaft, of various heights. The methodology of processing the obtained experimental data is analyzed and the Nusselt numbers reliance on Grashof numbers are presented. The physical picture of the air flow structure passing through a single-row horizontal finned beam is analyzed. Because of the analysis, it was concluded that the installation of the exhaust shaft above the beam leads to a significant increase in heat transfer by a factor of 2.5-3.0, but the efficiency of heat transfer depends on the height of the extraction shaft and on the back spacing. In such case the mixed convective heat transfer reliance on back spacing is differed from a character of dependence as compared to free convection heat exchange.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>воздухоохлаждаемый теплообменник</kwd><kwd>естественная конвекция</kwd><kwd>биметаллическая ребристая труба</kwd><kwd>вытяжная шахта</kwd><kwd>число Грасгофа</kwd><kwd>число Нуссельта</kwd><kwd>подъемно-вытяжной перепад давления</kwd><kwd>коэффициент теплоотдачи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>air-cooled heat exchanger</kwd><kwd>free convection</kwd><kwd>bimetallic finned tube</kwd><kwd>exhaust shaft</kwd><kwd>Grashof number</kwd><kwd>Nusselt number</kwd><kwd>lift-and-exhaust differential pressure</kwd><kwd>heat transfer coefficient</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">Кунтыш В. Б. Бессонный А. Н. 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