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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v35.i56.10
13 pages

Study of the Start of Subcooled Water Boiling with Pulsed Heat Release

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
D. A. Kazenin
Moscow State University of Engineering Ecology, Russia
L. V. Syskov
Melent'ev Institute of Power Engineering Systems; Institute of Energy Systems, Irkutsk, Russia

RESUMO

Results of experimental study of nonstationary boiling of water subcooled below the saturation temperature in the case of pulsed heat release in a vertical tubular heater 9 mm in diameter are presented. Interrelation of variations in the heating-surface temperature and pressure in the bulk of the liquid with development of a steam-liquid wall layer in the structure is shown by visualizing the dynamic process. The experimental data obtained in the range of pressures 0.037−0.3 MPa, heating rates of a heat liberating wall 2000−6500 K/sec, and water subcoolings 5−110 K are generalized. An approximate theoretical model of the initial boiling of water is described.


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