COMBINED MASS AND HEAT-TRANSFER DURING NONISOTHERMAL ABSORPTION IN GAS-LIQUID SLUG FLOW

被引：4
作者：
ELPERIN, T
FOMINYKH, A
机构：
[1] Ben-Gurion University, the Negev Department of Mechanical Engineering, Beer Sheva, 84105
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1995年 / 22卷 / 02期
关键词：
D O I：
10.1016/0735-1933(95)00013-5
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A model of combined mass and heat transfer during nonisothermal gas absorption from a slug rising in a channel filled with liquid is suggested. The expressions for coefficients of heat and mass transfer from a single slug are derived in the approximation of the thin concentration and heat boundary layers in a liquid phase. Under the assumptions of a perfect mixing of the dissolved gas in liquid plugs and uniform temperature distribution in liquid plugs, recurrent relations for the dissolved gas concentration and temperature in the n-th liquid plug and mass and heat fluxes from the n-th gas slug are derived. The total mass and heat fluxes in a gas-liquid slug flow are determined. In the limiting case of absorption without heat release the derived formulas recover the expressions for isothermal absorption in a gas-liquid slug flow.
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页码：285 / 294
页数：10
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