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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">izvkgtu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия КГТУ</journal-title><trans-title-group xml:lang="en"><trans-title>KSTU News</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-3071</issn><publisher><publisher-name>Калининградский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46845/1997-3071-2026-81-114-128</article-id><article-id custom-type="elpub" pub-id-type="custom">izvkgtu-210</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>СУДОСТРОЕНИЕ, МАШИНОСТРОЕНИЕ И ЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHIPBUILDING, MACHINE MANUFACTURING AND POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Исследование стабильности водотопливной эмульсии для дизельного двигателя</article-title><trans-title-group xml:lang="en"><trans-title>Study of the stability of water-fuel emulsion for diesel engine</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-3149-0345</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сынашенко</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Synashenko</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оксана Владимировна Сынашенко - кандидат физико-математических наук, доцент кафедры физики</p><p>Калининград</p></bio><bio xml:lang="en"><p>Oksana V. Synashenko - Candidate of Physical and Mathematical sciences, Associate Professor of the Department of Physics</p><p>Kaliningrad</p></bio><email xlink:type="simple">oksanasynashenko@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/0000-0003-1285-206X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Синявский</surname><given-names>Н. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Sinyavskiy</surname><given-names>N. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Яковлевич Синявский - доктор физико-математических наук, профессор, заведующий кафедрой физики</p><p>Калининград</p></bio><bio xml:lang="en"><p>Nikolay Ya. Sinyavskiy - Doctor of Physical and Mathematical sciences, Professor, Head of the Department of Physics</p><p>Kaliningrad</p></bio><email xlink:type="simple">nikolaj.sinyavskij@klgtu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2969-0346</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кострикова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostrikova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Анатольевна Кострикова - кандидат физико-математических наук, доцент, проректор по научной работе</p><p>Калининград</p></bio><bio xml:lang="en"><p>Natal'ya A. Kostrikova - Candidate of Physical and Mathematical sciences, Associate professor, Vice-rector for research</p><p>Kaliningrad</p></bio><email xlink:type="simple">natalia.kostrikova@klgtu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Калининградский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kaliningrad State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>07</day><month>05</month><year>2026</year></pub-date><volume>0</volume><issue>81</issue><fpage>114</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сынашенко О.В., Синявский Н.Я., Кострикова Н.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Сынашенко О.В., Синявский Н.Я., Кострикова Н.А.</copyright-holder><copyright-holder xml:lang="en">Synashenko O.V., Sinyavskiy N.Y., Kostrikova N.A.</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://journal.klgtu.ru/jour/article/view/210">https://journal.klgtu.ru/jour/article/view/210</self-uri><abstract><p>Известно, что водотопливные эмульсии, используемые в дизельных двигателях, обладают рядом преимуществ по сравнению с традиционными дизельными топливами, что существенно влияет на эффективность и экологичность работы двигателей. Использование водотопливных эмульсий может быть связано с рядом проблем, касающихся их стабильности, таких как разделение фаз, коалесценция и осаждение, качество компонентов и др. Данные вопросы побуждают исследователей подробно изучать свойства водотопливных эмульсий и совершенствовать методы их получения. В работе приводятся результаты исследования стабильности водотопливных эмульсий с помощью фотонной корреляционной спектроскопии и кинетики изменения времен спин-спиновой релаксации ЯМР Т2 в процессе седиментации капель воды эмульсии на примере системы «дизельное топливо Euro C + вода». Показано, что с течением времени может наблюдаться переход одномодального распределения гидродинамических радиусов капель воды в бимодальное. Это объясняется резким ростом агрегации капель и ослаблением этого процесса эмульгатором, концентрация которого в области рассеяния луча уменьшается. Измеренные времена релаксации ЯМР Т2 с помощью программы Niumag NMR Data Analysis Software V1.1 (Pore size distribution) позволили определить распределение размеров капель воды в эмульсии альтернативным методом. Установлено, что более длинный процесс расслаивания эмульсии наблюдается в образцах с большим временем эмульгирования. Эмульсия, полученная без эмульгатора, очень неустойчива из-за сильной коалесценции и быстро расслаивается. Для создания устойчивой мелкодисперсной эмульсии необходимо, главным образом, длительное взбивание смеси в присутствии эмульгатора. Представленные в данной работе результаты могут быть полезны для дисперсионного анализа любых органических эмульсий, содержащих микроразмерные капли несмешиваемой жидкости.</p></abstract><trans-abstract xml:lang="en"><p>It is known that water-fuel emulsions used in diesel engines have a number of advantages over traditional diesel fuels, which significantly affects the efficiency and environmental performance of the engines. The use of water-fuel emulsions can be associated with several problems related to their stability, such as phase separation, coalescence, and sedimentation, as well as the quality of the components and others. These issues encourage researchers to thoroughly study the properties of water-fuel emulsions and improve methods for their production. This paper presents the results of a study of the stability of water-fuel emulsions using photon correlation spectroscopy and the kinetics of changes in T2 NMR relaxation times during the sedimentation of emulsion water droplets using the example of a Euro C diesel fuel + water system. It is shown that over time, a transition from a unimodal distribution of water droplet hydrodynamic radii to a bimodal distribution can be observed. This is explained by a sharp increase in droplet aggregation and the weakening of this process by the emulsifier, the concentration of which decreases in the beam scattering region. NMR T2 relaxation times measured using Niumag NMR Data Analysis Software V1.1 (Pore Size Distribution) made it possible to determine the size distribution of water droplets in the emulsion using an alternative method. A longer emulsion separation process was found in samples with a longer emulsification time. An emulsion obtained without an emulsifier is very unstable due to strong coalescence and quickly separates. Prolonged whisking is essential for obtaining a stable, finely dispersed emulsion. The optimal emulsifier amount is no more than 1%. The results obtained in this study can be useful for dispersion analysis of any organic emulsions containing microscopic droplets of immiscible liquid.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>судовые дизельные топлива</kwd><kwd>водотопливные эмульсии</kwd><kwd>динамическое рассеяние света</kwd><kwd>ЯМР-релаксометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>marine engine fuels</kwd><kwd>water-fuel emulsion</kwd><kwd>dynamic light scattering</kwd><kwd>NMR-relaxometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Федерального агентства по рыболовству, рег. № 226020326858–4.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the state assignment of the Federal Fisheries Agency, reg. N 226020326858–4.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Реологические свойства водотопливных эмульсий, приготовляемых методом впрыска воды в дизельное топливо / Л. С. Керученко, Е. И. Мальцева, С. П. Прокопов, А. С. Союнов . – DOI 10.48136/2222-0364_2022_1_129 // Вестник Омского государственного аграрного университета. – 2022. – № 1 (45). – С. 129–138.</mixed-citation><mixed-citation xml:lang="en">Rheological properties of water-fuel emulsions prepared by injecting water into diesel fuel / L. S. Keruchenko, E. I. Maltseva, S. P. Prokopov, A. S. Soyunov. – DOI: 10.48136/2222-0364_2022_1_129 // Bulletin of Omsk State Agrarian University. – 2022. – № 1 (45). – P. 129–138.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Патров, Ф. В. Использование водотопливной эмульсии при эксплуатации судовых ДВС / Ф. В. Патров, О. С. Вахромеев // Вестник Астраханского государственного технического университета. Сер.: Морская техника и технология. – 2009. – № 1. – С. 223–225.</mixed-citation><mixed-citation xml:lang="en">Patrov, F. V. Use of water-fuel emulsion in the operation of marine internal combustion engines / F. V. Patrov, O. S. Vakhromeev // Bulletin of the Astrakhan State Technical University. Series: Marine Engineering and Technology. – 2009. – № 1. – P. 223–225.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Аттия, А. М. А. Особенности подготовки водотопливных эмульсий на основе легких топлив / А. М. А. Аттия // Фундаментальные исследования. – 2011. – № 8. – C. 706–709.</mixed-citation><mixed-citation xml:lang="en">Attia, A. M. A. Features of the preparation of water-fuel emulsions based on light fuels / A. M. A. Attia // Fundamental research. – 2011. – № 8. – P. 706–709.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Дорохов, А. Ф. Управление воспламеняемостью водотопливной эмульсии регулированием влагосодержания / А. Ф. Дорохов, Ф. В. Патров, В. В. Кабылбекова // Вестник Астраханского государственного технического университета. Сер.: Морская техника и технология. – 2014. – № 2. – C. 67–73.</mixed-citation><mixed-citation xml:lang="en">Dorokhov, A. F. Control of flammability of water-fuel emulsion by regulation of moisture content / A. F. Dorokhov, F. V. Patrov, V. V. Kabylbekova // Bulletin of Astrakhan State Technical University. Series: Marine Engineering and Technology. – 2014. – № 2. – P. 67–73.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Gopidesi, R. K. A review on emulsified fuels and their application in diesel engine / R. K. Gopidesi, P. S. Rajaram. – DOI: 10.1080/01430750.2019.1667435 // International Journal of Ambient Energy. – 2019. – P. 9.</mixed-citation><mixed-citation xml:lang="en">Gopidesi, R. K. A review on emulsified fuels and their application in diesel engine / R. K. Gopidesi, P. S. Rajaram. – DOI: 10.1080/01430750.2019.1667435 // International Journal of Ambient Energy. – 2019. – P. 9.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Biplab, K. Debnath. A comprehensive review on the application of emulsions as an alternative fuel for diesel engines / K. Debnath Biplab, K. Saha Ujjwal, Sahoo Niranjan // Renewable and Sustainable Energy Reviews. – 2015. – № 42. – P. 196 – 211.</mixed-citation><mixed-citation xml:lang="en">Biplab, K. Debnath. A comprehensive review on the application of emulsions as an alternative fuel for diesel engines / K. Debnath Biplab, K. Saha Ujjwal, Sahoo Niranjan // Renewable and Sustainable Energy Reviews. – 2015. – № 42. – P. 196 – 211.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Fuel properties of water emulsion fuel prepared using porous membrane method for low pollutant engine at various temperatures / W. Seungchul, K. Woongil, L. Jungkoo, L. Kihyung // Energy Reports. – 2021. – № 7. – P. 6638–6650.</mixed-citation><mixed-citation xml:lang="en">Fuel properties of water emulsion fuel prepared using porous membrane method for low pollutant engine at various temperatures / W. Seungchul, K. Woongil, L. Jungkoo, L. Kihyung // Energy Reports. – 2021. – № 7. – P. 6638–6650.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">The characteristic of spray using diesel water emulsified fuel in a diesel engine / P. Sangki, W. Seungchul, K. Hyungik, L. Kihyung // Applied Energy. – 2016. – № 176. – P. 209–220.</mixed-citation><mixed-citation xml:lang="en">The characteristic of spray using diesel water emulsified fuel in a diesel engine / P. Sangki, W. Seungchul, K. Hyungik, L. Kihyung // Applied Energy. – 2016. – № 176. – P. 209–220.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Osama, A. E. Experimental Investigation on a Diesel Engine Fueled by DieselBiodiesel Blends and their Emulsions at Various Engine Operating Conditions / A. E. Osama, M. R. Murari, S. S. Manpreet // Applied Energy. – 2017. – № 203. – P. 582–593.</mixed-citation><mixed-citation xml:lang="en">Osama, A. E. Experimental Investigation on a Diesel Engine Fueled by DieselBiodiesel Blends and their Emulsions at Various Engine Operating Conditions / A. E. Osama, M. R. Murari, S. S. Manpreet // Applied Energy. – 2017. – № 203. – P. 582–593.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Investigation into the influence of droplet size on the stability of diesel emulsions based on multiple light scattering / Liu Jincheng, Dai Shiqi, Bao Xicheng [et al.] // Journal of Molecular Liquids. – 2023. – Vol. 390 B. – Art. 123182.</mixed-citation><mixed-citation xml:lang="en">Investigation into the influence of droplet size on the stability of diesel emulsions based on multiple light scattering / Liu Jincheng, Dai Shiqi, Bao Xicheng [et al.] // Journal of Molecular Liquids. – 2023. – Vol. 390 B. – Art. 123182.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Current trends in water-in-diesel emulsion as a fuel / M. Y. Khan, Z. A. A. Karim, F. Y. Hagos [et al.]. – DOI: 10.1155/2014/527472 // ScientificWorld Journal. – 2014. – № 1. – P. 1–15. – URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC3916022 (дата обращения: 25.03.2026)</mixed-citation><mixed-citation xml:lang="en">Current trends in water-in-diesel emulsion as a fuel. / M. Y. Khan, Z. A. A. Karim, F. Y. Hagos [et al.]. – DOI: 10.1155/2014/527472 // ScientificWorld Journal. – 2014. – № 1. – P. 1–15. – URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC3916022 (date of treatment: 25.03.2026)</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Diesel engine fuel consumption and emission analysis using steam generated non-surfactant water-in-diesel emulsion fuel / D. A. Sugeng, M.F.H.M. Zahari, A. M. Ithnin [et al.]. – DOI: 10.1088/1757-899X/257/1/012036 // Conference Series Materials Science and Engineering. – 2017. – Vol. 257, № 1. – P. 012036.</mixed-citation><mixed-citation xml:lang="en">Diesel engine fuel consumption and emission analysis using steam generated non-surfactant water-in-diesel emulsion fuel / D. A. Sugeng, M. F. H. M. Zahari, A. M. Ithnin [et al.]. – DOI: 10.1088/1757-899X/257/1/012036 // Conference Series Materials Science and Engineering. – 2017. – Vol. 257, № 1. – P. 012036.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Water-in-diesel fuel nanoemulsions: Preparation, stability and physical properties / M. R. Noor El-Din, S. H. El-Hamouly, H. M. Mohamed [et al.]. – DOI: 10.1088/1757-899X/257/1/012036 // Egyptian Journal of Petroleum. – 2013. – Vol. 22, № 4. – P. 517–530.</mixed-citation><mixed-citation xml:lang="en">Water-in-diesel fuel nanoemulsions: Preparation, stability and physical properties / M. R. Noor El-Din, S. H. El-Hamouly, H. M. Mohamed [et al.]. – DOI: 10.1088/1757-899X/257/1/012036 // Egyptian Journal of Petroleum. – 2013. – Vol. 22, № 4. – P. 517–530.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Кириченко, М. Н. Появление артефактного пика в распределении частиц по размерам, измеряемым методом ДРС при малых концентрациях / М. Н. Кириченко, А. Т. Саноева, Л. Л. Чайков // Краткие сообщения по физике ФИАН. – 2016. – № 8. – С. 32–38.</mixed-citation><mixed-citation xml:lang="en">Kirichenko, M. N. Appearance of an artifact peak in the particle size distribution measured by the DLS method at low concentrations / M. N. Kirichenko, A. T. Sanoeva, L. L. Chaikov // Brief communications on physics of the Lebedev Physical Institute. – 2016. – № 8. – P. 32–38.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Исследование судовых моторных масел методом динамического рассеяния света / Н. Я. Синявский, И. П. Корнева, А. М. Иванов, Н. А. Кострикова. – DOI: 10.37220/MIT.2020.50.4.014 // Морские интеллектуальные технологии. – 2020. – № 4 (50), часть 1. – С. 103–108.</mixed-citation><mixed-citation xml:lang="en">Study of marine motor oils by dynamic light scattering method / N. Ya. Sinyavsky, I. P. Korneva, A. M. Ivanov, N. A. Kostrikova. – DOI: 10.37220/MIT.2020.50.4.014 // Marine intelligent technologies. – 2020. – № 4 (50), part 1. – P. 103–108.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sinyavsky, N. NMR relaxometry study of demulsification of diesel fuel / N. Sinyavsky, O. Synashenko, N. Kostrikova . – DOI: 10.1007/s00723-025-01820-w // Applied Magnetic Resonance. – 2026. – № 57.</mixed-citation><mixed-citation xml:lang="en">Sinyavsky, N. NMR relaxometry study of demulsification of diesel fuel / N. Sinyavsky, O. Synashenko, N. Kostrikova . – DOI: 10.1007/s00723-025-01820-w // Applied Magnetic Resonance. – 2026. – № 57.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
