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传热学
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ISSN 打印: 1064-2285
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传热学

DOI: 10.1615/HeatTransRes.v33.i3-4.230
4 pages

Experimental Study of Unsteady Processes in a Channel with a Coolant at Pulse Heat Releases

E. A. Tairov
Siberian Power Engineering Institute, Siberian Branch of the Russian Academy of Sciences; and Melent'ev Institute of Power Engineering Systems, Irkutsk, Russia
B. G. Pokusaev
Siberian Power Engineering Institute, Siberian Branch of the Russian Academy of Sciences Irkutsk; and Moscow State University of Engineering Ecology, Staraya Basmannaya str. 21/4, Moscow, Russia

ABSTRACT

The paper presents the results of experiments on interaction between a tube heated by pulses in a channel and water under pressure. At pressures up to 1.3 MPa the collapse of a steam film is shown to be accompanied by shock boiling of liquid on the heated surface and formation of the shock wave (Рmax =5-8 MPa). At a higher pressure (Р = 7 MPa), depending on the value of liquid subcooling, three types of pressure fluctuations corresponding to different structures of steam-water medium are revealed.