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Heat Transfer Research
インパクトファクター: 1.199 5年インパクトファクター: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v35.i56.20
9 pages

Physical Model of Thermal Hydraulic Self-Oscillations in Vapor Condensation Inside a Pipe

Nikolay A. Pribaturin
Kutateladze Institute of Thermophysics, Acad. Lavrentiev ave., 1, Novosibirsk, Russia; Nuclear Safety Institute, Novosibirsk Branch, Acad. Lavrentiev ave., 1, Novosibirsk, Russia
Sergey I. Lezhnin
Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Ak. Lavrenteva 1, Novosibirsk 630090, Russia; Novosibirsk State University, 1 Pirogova Street, Novosibirsk 630090, Russia
Vladimir A. Fedorov
Research and Innovation Joint-Stock Company "Turbocon", Kaluga Turbine Plant, 255, Moskovskaya Street, Kaluga, 248021, Russia; Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

要約

The appearance of pressure oscillations in complete water vapor condensation inside a pipe, the outer surface of which is intensely cooled by cold water, is analyzed. The experiments with a model one-tube heat exchanger and industrial condenser are carried out. The existence of two modes of pressure oscillations is found. It has been established that the frequencies of these modes depend on an inclination of the channel to the horizon, heat flux density, presence of a noncondensed gas, and static pressure. The physical model of the occurrence of pressure oscillations has been developed. The qualitative agreement between the experiment and calculation is shown.


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