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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2025-16-1-89-104</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-95</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="en"><subject>CHEMISTRY AND MATERIALS SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И НАУКА О МАТЕРИАЛАХ</subject></subj-group></article-categories><title-group><article-title>Experimental studies on thermal and physical characteristics of mono and hybrid nanofluids</article-title><trans-title-group xml:lang="ru"><trans-title>Экспериментальные исследования тепловых и физических характеристик моно- и гибридных наножидкостей</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>Шейх</surname><given-names>С. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sheik</surname><given-names>S. B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Salman Basha Sheik – Research Scholar, Department of Mechanical Engineering; Assistant Professor, Department of Mechanical Engineering</p><p>Warangal, 506371</p><p>Tadepalligudem, 534101</p></bio><email xlink:type="simple">sheiksalmanbasha@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8816-7419</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Правина</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Praveena</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Praveena Devi Nagireddy – Assistant Professor, Department of Mechanical Engineering</p><p>Warangal, 506371</p></bio><email xlink:type="simple">n.praveenadevi@sru.edu.in</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2681-2010</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Купиредди</surname><given-names>К. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kupireddi</surname><given-names>K. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kiran Kumar Kupireddi – Professor, Department of Mechanical Engineering</p><p>Warangal, 506004</p></bio><email xlink:type="simple">kiran@nitw.ac.in</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>SR University; Sasi Institute of Technology and Engineering</institution><country>India</country></aff><aff xml:lang="en" id="aff-2"><institution>SR University</institution><country>India</country></aff><aff xml:lang="en" id="aff-3"><institution>NIT</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2025</year></pub-date><volume>16</volume><issue>1</issue><fpage>89</fpage><lpage>104</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Sheik S.B., Praveena D.N., Kupireddi K.K., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шейх С.Б., Правина Д.Н., Купиредди К.К.</copyright-holder><copyright-holder xml:lang="en">Sheik S.B., Praveena D.N., Kupireddi K.K.</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://nanojournal.ifmo.ru/jour/article/view/95">https://nanojournal.ifmo.ru/jour/article/view/95</self-uri><abstract><p>This research paper aims to present experimental findings on important thermophysical properties such as thermal conductivity, viscosity, and density of selected nanofluids. Ethylene glycol is considered as the base fluid, and multi-walled carbon nanotubes, zinc oxide, aluminum oxide nanoparticles are used in the present study. The nanopartices are chosen due to their remarkable thermal and physical properties. The results indicate that the thermal conductivity of the ethylene glycol increases in a linear manner when Al2O3, MWCNT, and ZnO nanoparticles are dispersed in the base fluid. Particle concentration varied from 0.1 to 0.3 vol %. The highest increment noted is 39 % at the highest concentrations. The viscosity of the nanoparticles containing ethylene glycol improves with temperature, and Al2O3 and MWCNT have the highest improvement. Thus, the density analysis shows that the nanofluids with 0.1 and 0.2 vol % nanoparticles dispersed in ethylene glycol and having 0.2 vol % have less fluctuation compared to nanofluids with 0.3 vol %, which may affect various characteristics of the coolant considerably. This shows how nanofluids can help in managing the thermal conditions of automobiles and electronic gadgets.</p></abstract><trans-abstract xml:lang="ru"><p>В работе представлены результаты анализа влияния химического состава и количества наночастиц на термофизические свойства наножидкостей. В качестве базовой жидкости рассматривался этиленгликоль, а в качестве наполнителя – многослойные углеродные нанотрубки (MWCNT), наночастицы оксид цинка и оксида алюминия. Показано, что при увеличении концентрации наночастиц в системе теплопроводность этиленгликоля увеличивается линейно, причем, отмечено, что наибольшее увеличение составило 39% при самых высоких концентрациях – 3 об.%. Наибольшее влияние на значение вязкости исследуемой системы оказывают наночастицы Al2O3 и MWCNT. Вязкость этиленгликоля, содержащего наночастицы увеличивается с температурой, а при введении в наножидкость Al2O3 и MWCNT наблюдается самое большое увеличение вязкости. Полученные результаты показывают, как наножидкости могут помочь в управлении тепловыми условиями работы автомобилей и электронных устройств. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>Гибридные наножидкости</kwd><kwd>Теплопроводность</kwd><kwd>Вязкость</kwd><kwd>Плотность</kwd><kwd>Автомобиль</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hybrid Nanofluids</kwd><kwd>thermal conductivity</kwd><kwd>viscosity</kwd><kwd>density</kwd><kwd>automobile</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">Xianjun Hou., Chen Chu., Hua Jiang., Mohamed Kamal, Ahmed Ali., Karl D., Dearn. Enhancing Heat Transfer Behaviour of Ethylene Glycol by the Introduction of Silicon Carbide Nanoparticles: An Experimental and Molecular Dynamics Simulation Study. 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