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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">omna</journal-id><journal-title-group><journal-title xml:lang="ru">Омский научный вестник</journal-title><trans-title-group xml:lang="en"><trans-title>Omsk Scientific Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-8225</issn><issn pub-type="epub">2541-7541</issn><publisher><publisher-name>Омский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25206/1813-8225-2026-199-117-124</article-id><article-id custom-type="edn" pub-id-type="custom">NSVNVS</article-id><article-id custom-type="elpub" pub-id-type="custom">omna-458</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>ЭЛЕКТРОНИКА, ФОТОНИКА, ПРИБОРОСТРОЕНИЕ И СВЯЗЬ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRONICS, PHOTONICS, APPLIANCE AND COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Математическая модель печи первичной переработки нефти</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical model of the oil primary processing furnace</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>Дмитриев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виталий Андреевич Дмитриев, магистрант</p><p>кафедра «Автоматизация и энергетическое машиностроение»</p><p>644080; пр. Мира, 5; Омск</p></bio><bio xml:lang="en"><p>Vitaliy Andreyevich Dmitriev, Master's Student</p><p>Automation and Power Engineering Department</p><p>644080; Mira Ave., 5; Omsk</p></bio><email xlink:type="simple">vitaliy.dmitriyev.02@bk.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>Милюшенко</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Milyushenko</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Анатольевич Милюшенко, кандидат технических наук, доцент</p><p>кафедра «Автоматизация и энергетическое машиностроение»</p><p>644080; пр. Мира, 5; Омск</p><p>AuthorID (РИНЦ): 650473</p></bio><bio xml:lang="en"><p>Sergey Anatolyevich Milyushenko, Candidate of Technical Sciences, AssociateProfessor</p><p>Automation and Power Engineering Department</p><p>644080; Mira Ave., 5; Omsk</p><p>AuthorID (RSCI): 650473</p></bio><email xlink:type="simple">sergey19812003@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>Беляев</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belyaev</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Владимирович Беляев, доцент</p><p>кафедра «Электрооборудование и автоматика»</p><p>644098; 14-й Военный городок, 119; Омск</p><p>AuthorID (РИНЦ): 191199</p></bio><bio xml:lang="en"><p>Konstantin Vladimirovich Belyaev, Associate Professor</p><p>Electrical Equipment and Automation Department</p><p>644098; 14th Voyennyy gorodok; Omsk</p><p>AuthorID (RSCI): 191199</p></bio><email xlink:type="simple">bkv775@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный автомобильно-дорожный университет (СибАДИ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Automobile and Highway University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Омский автобронетанковый инженерный институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Omsk Tank-Automotive Engineering Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>117</fpage><lpage>124</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дмитриев В.А., Милюшенко С.А., Беляев К.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Дмитриев В.А., Милюшенко С.А., Беляев К.В.</copyright-holder><copyright-holder xml:lang="en">Dmitriev V.A., Milyushenko S.A., Belyaev K.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://onv.omgtu.ru/jour/article/view/458">https://onv.omgtu.ru/jour/article/view/458</self-uri><abstract><p>   Повышение эффективности и качества автоматического управления трубчатыми печами является приоритетной задачей для современных нефтеперерабатывающих предприятий. В данной работе представлена математическая модель печи установки первичной переработки нефти, предназначенная для стабилизации температуры нефти перед её разделением на фракции.</p><p>   Объектом исследования выступает двухскатная трубчатая печь шатрового типа установки первичной переработки нефти с контуром регулирования температуры нефтепродукта на выходе из змеевика по расходу топливного газа.</p><p>   Моделирование базируется на синтезе передаточных функций элементов системы: датчик температуры представлен апериодическим звеном первого порядка, исполнительный механизм — интегрирующим звеном, регулирующий клапан — апериодическим звеном, объект управления — апериодическим звеном.</p><p>   Особенностью предложенного подхода является комплексный учёт физико-химических факторов: переменной теплотворной способности топливного газа, вычисляемой через показатель Воббе; аккумулирующей способности стенок жаровых труб; зависимости теплоёмкости нефти от её влагосодержания.</p><p>   Имитационная модель реализована в среде SimInTech; исследование выполнено методом вычислительного эксперимента при последовательном приложении ступенчатых возмущений. Установлено, что при повышении температуры сырья на входе на 50 °C, увеличении массового расхода нефти на 30 % и пятикратном росте влагосодержания регулируемая величина достигает экстремальных значений 410, 350 и 340 °C относительно уставки 370 °С при времени регулирования не более 15 000 с. Разработанная модель позволяет минимизировать отклонения технологического режима, обеспечивая условия для чёткого фракционирования.</p></abstract><trans-abstract xml:lang="en"><p>   Improving the precision of automatic control systems for process heaters is a critical factor in optimizing crude oil primary distillation units. The article introduces a dynamic mathematical model designed to maintain tight control over the outlet temperature, a vital parameter for subsequent high-quality fractionation.</p><p>   The object of the research is a gable barrel-type oil refinery furnace within a primary crude oil processing unit, featuring a temperature control loop for the petroleum product at the coil outlet based on fuel gas flow rate.</p><p>   The modeling is based on the synthesis of transfer functions of system elements: the temperature sensor is represented as a first-order lag element, the actuator — as an integrating element, the control valve — as an aperiodic link and the controlled process — as an aperiodic link.</p><p>   A distinctive feature of the proposed approach is the comprehensive consideration of physicochemical factors: the variable calorific value of the fuel gas calculated via the Wobbe index; the heat accumulation capacity of the fire tube walls; and the dependence of crude oil specific heat capacity on its moisture content.</p><p>   The simulation model is implemented in the SimInTech environment; the research is conducted using computational experiments involving the sequential application of step disturbances. Therefore, the authors conclude that with an increase in the feedstock inlet temperature by 50 °C, a 30 % rise in the mass flow rate of oil and a fivefold increase in moisture content, the controlled variable reaches extreme values of 410, 350 and 340 °C relative to the setpoint of 370 °C, with a regulation time not exceeding 15 000 seconds. The developed model enables minimization of technological regime deviations providing conditions for precise fractionation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>математическая модель</kwd><kwd>нефтепереработка</kwd><kwd>трубчатая печь</kwd><kwd>тепловая инерционность</kwd><kwd>первичная переработка</kwd><kwd>передаточная функция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mathematical model</kwd><kwd>oil refining</kwd><kwd>tube furnace</kwd><kwd>thermal inertia</kwd><kwd>primary processing</kwd><kwd>transfer function</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы не имеют финансовой заинтересованности в представленных материалах и методах</funding-statement><funding-statement xml:lang="en">The authors have no financial interest in the presented materials or methods</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">Jacas-Portuondo F., Peña-Pupo L., Forgas-Brioso M. 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