NATURAL-CONVECTION MASS-TRANSFER INSIDE HORIZONTAL SQUARE DUCTS

被引：2
|
作者：
NIRDOSH, I [1 ]
SEDAHMED, GH [1 ]
机构：
[1] UNIV ALEXANDRIA,FAC ENGN,DEPT CHEM ENGN,ALEXANDRIA,EGYPT
来源：
CHEMICAL ENGINEERING COMMUNICATIONS | 1994年 / 130卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
NATURAL CONVENTION; LIMITING CURRENT; MASS TRANSFER COEFFICIENTS; SQUARE CAVITY; ENCLOSURE;
D O I：
10.1080/00986449408936275
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Rates of free convection mass transfer inside horizontal square ducts were measured by electrochemical technique. Physical properties of the solution and duct side length were changed to provide Sc.Gr range of 7.38 x 10(8) - 1.4 x 10(11). Under these conditions the data were correlated by the equation Sh = 0.382(Sc.Gr)(0.278) A comparison between the measured overall rate of mass transfer with that calculated by summing the rates of mass transfer at the separate sides of the duct showed that the measured value is higher than the calculated value owing to convective interaction between adjacent surfaces.
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页码：193 / 201
页数：9
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