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Heat Transfer Research

ISSN for PRINT: 1064-2285

Institutional price:	$2485.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

2002, Volume33

151 pages

Issue price - $674.00

Pulse Superheating of the Solutions of Ethyl Alcohol with Water at Negative Pressures

V. E. Vinogradov
Institute of Thermophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

P. A. Pavlov
Institute of Thermophysics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

ABSTRACT

We carried out an experimental study of the boiling-up of ethyl alcohol, water, and their solutions on pulse superheating on a thin platinum wire within the range of temperatures from 100 to 310°C and negative pressures of up to –10 MPa. We obtained the dependences of the temperature of limiting superheating of liquid on a wire on a value of negative pressure. In the case of a pure alcohol (with the concentration 96 vol.%), the limit of attainable superheating of liquid (T_superh(P)) continually passes from the region of positive pressures to the region of negative ones. The addition of water to ethanol causes a discontinuity of T_superh(P) in transition to negative pressures toward a decrease in the temperature of limiting superheating of liquid.