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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

2001, Volume32

174 pages

Issue price - $1011.00

Distribution of Local Mass Transfer Coefficients on Walls of Complex-Shape Channels

N. I. Pecherkin
Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

V. Yu. Chekhovich
Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

B. I. Nigmatulin
Experimental Scientific-Research Center—All-Russian Scientific-Research Institute of Atomic Power Plants, Moscow, Russia

ABSTRACT

The paper presents the results of the experimental study of distribution of local coefficients of mass transfer on the walls of channel with a flow turn by 90 and in a channel with sudden expansion. The coefficients of mass transfer are measured by an electrodiffusion method. The flow in the channel with sudden expansion is photographed and recorded by a video camera. The zones with elevated coefficients of mass transfer on the inner surface of the channels are found. The effect of gas content on the position of the zones with maximum coefficients of mass transfer and on the value of the coefficients of mass transfer is studied. Empirical relations for dimensionless maximum coefficients of mass transfer are obtained.