Experimental Determination of the Heat Transfer Coefficient Variation in Thermal Power Equipment Subjected to High-amplitude Oscillations
DOI:
https://doi.org/10.24160/1993-6982-2026-1-76-80Keywords:
pitching, heat transfer coefficient, nuclear power facility, efficiencyAbstract
The aim of the study is to determine the effect of high-amplitude oscillations on heat transfer processes. During the operation of a transport nuclear power facility (NPF) under motion conditions, it inevitably experiences pitching. Pitching is a dynamic effect of high-amplitude oscillation on the vessel body, which is also transferred to the NPF. The purpose of the study is to determine the extent to which pitching affects thermal-hydraulic processes. The study was conducted on an experimental setup made in the form of a simple tube-in-tube heat exchanger with countercurrent motion of fluids. The heat exchanger is connected to a crank mechanism that simulates pitching. For analyzing the experimental data obtained, criterion equations and dependencies were used. The temperatures obtained during the experiment were recalculated into a heat transfer coefficient. Based on the obtained heat transfer coefficient values, conclusions have been drawn about the extent to which oscillations affect the heat transfer. The obtained study results have confirmed the theoretical conjectures that an external dynamic action may enhance the heat transfer as a consequence of thermal boundary layer destruction. The findings can be applied in designing the heat exchangers of NPFs and other devices.
References
1. Михеев М.А., Михеева И.М. Основы теплопередачи. М.: Энергия, 1977.
2. Сатаев А.А. Системный анализ и модели теплогидравлических процессов в оборудовании судовых ЯЭУ при воздействии внешних динамических сил. Нижний Новгород: Изд-во Нижегородского гос. техн. ун-та им. Р.Е. Алексеева, 2022.
3. Аношкин Ю.И., Дунцев А.В. Теплообменные процессы в ЯЭУ. Нижний Новгород: Изд-во Нижегородского гос. техн. ун-та им. Р.Е. Алексеева, 2015.
4. Pendyala R., Jayanti S., Balakrishnan A.R. Flow and Pressure Drop Fluctuations in a Vertical Tube Subject to Low Frequency Oscillations // Nuclear Eng. and Design. 2008. V. 238(1). Pp. 178—187.
5. Lai Z. e. a. Experimental Study on Thermal Hydraulic Characteristics of Natural Circulation Loop under Motion Condition // Appl. Thermal Eng. 2022. V. 207(7). P. 118122.
6. Кириллов П.Л., Юрьев Ю.С., Бобков В.П. Справочник по теплогидравлическим расчетам. М: Энергоатомиздат, 1990.
7. Селиванов Н.В. Моделирование тепломассообмена высоковязких жидкостей в колеблющейся ёмкости: разработка методов расчёта, эксперимент, промышленное использование: дис. … доктора техн. наук. Астрахань: Астраханский гос. техн. ун-т, 2002.
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Для цитирования: Трофимов М.А., Сатаев А.А. Экспериментальное определение изменения коэффициента теплоотдачи при воздействии на процессы теплообмена высокоамплитудных колебаний // Вестник МЭИ. 2026. № 1. С. 76—80. DOI: 10.24160/1993-6982-2026-1-76-80
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Конфликт интересов: авторы заявляют об отсутствии конфликта интересов
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1. Mikheev M.A., Mikheeva I.M. Osnovy Teploperedachi. M.: Energiya, 1977. (in Russian).
2. Sataev A.A. Sistemnyy Analiz i Modeli Teplogidravlicheskikh Protsessov v Oborudovanii Sudovykh YaEU pri Vozdeystvii Vneshnikh Dinamicheskikh Sil. Nizhniy Novgorod: Izd-vo Nizhegorodskogo Gos. Tekhn. Un-ta im. R.E. Alekseeva, 2022. (in Russian).
3. Anoshkin Yu.I., Duntsev A.V. Teploobmennye Protsessy v YaEU. Nizhniy Novgorod: Izd-vo Nizhegorodskogo Gos. Tekhn. Un-ta im. R.E. Alekseeva, 2015. (in Russian).
4. Pendyala R., Jayanti S., Balakrishnan A.R. Flow and Pressure Drop Fluctuations in a Vertical Tube Subject to Low Frequency Oscillations. Nuclear Eng. and Design. 2008;238(1):178—187.
5. Lai Z. e. a. Experimental Study on Thermal Hydraulic Characteristics of Natural Circulation Loop under Motion Condition. Appl. Thermal Eng. 2022;207(7):118122.
6. Kirillov P.L., Yur'ev Yu.S., Bobkov V.P. Spravochnik po Teplogidravlicheskim Raschetam. M: Energoatomizdat, 1990. (in Russian).
7. Selivanov N.V. Modelirovanie Teplomassoobmena Vysokovyazkikh Zhidkostey v Koleblyushcheysya Emkosti: Razrabotka Metodov Rascheta, Eksperiment, Promyshlennoe Ispol'zovanie: Dis. … Doktora Tekhn. Nauk. Astrakhan': Astrakhanskiy Gos. Tekhn. Un-t, 2002. (in Russian)
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For citation: Trofimov M.A., Sataev A.A. Experimental Determination of the Heat Transfer Coefficient Variation in Thermal Power Equipment Subjected to High-amplitude Oscillations. Bulletin of MPEI. 2026;1:76—80. (in Russian). DOI: 10.24160/1993-6982-2026-1-76-80
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Conflict of interests: the authors declare no conflict of interest
