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.
引用
收藏
页码：193 / 201
页数：9
相关论文
共 50 条
  • [1] NATURAL-CONVECTION MASS-TRANSFER IN HORIZONTAL ANNULI
    SEDAHMED, GH
    SHEMILT, LW
    LETTERS IN HEAT AND MASS TRANSFER, 1981, 8 (06): : 515 - 523
  • [2] NATURAL-CONVECTION MASS-TRANSFER AS HORIZONTAL SCREENS
    SHEMILT, LW
    SEDAHMED, GH
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 1976, 6 (06) : 471 - 476
  • [3] NATURAL-CONVECTION MASS-TRANSFER ADJACENT TO HORIZONTAL PLATES
    GOLDSTEIN, RJ
    SPARROW, EM
    JONES, DC
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1973, 16 (05) : 1025 - 1035
  • [4] NATURAL-CONVECTION MASS-TRANSFER INSIDE CYLINDRICAL CAVITIES OF DIFFERENT ORIENTATION
    SEDAHMED, GH
    AHMED, AM
    ELRAFEY, ME
    HOSNEY, AY
    AYOB, EA
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 1995, 25 (07) : 677 - 681
  • [5] ROLE OF NATURAL-CONVECTION MASS-TRANSFER IN THE KINETICS OF ELECTROPOLISHING OF HORIZONTAL SURFACES
    SEDAHMED, GH
    ELABD, MZ
    MANSOUR, IAS
    AHMED, AM
    WRAGG, AA
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 1979, 9 (01) : 1 - 6
  • [6] NATURAL-CONVECTION ON VERTICAL AND HORIZONTAL PLATES WITH VECTORED SURFACE MASS-TRANSFER
    CHEN, TS
    BUCHANAN, WP
    ARMALY, BF
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1993, 36 (02) : 479 - 487
  • [7] NATURAL-CONVECTION MASS-TRANSFER AT SPHERES
    SEDAHMED, GH
    MANSOUR, IAS
    ELSHERIFY, TH
    HUSSEIN, AK
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 1984, 14 (01) : 91 - 95
  • [8] NATURAL-CONVECTION MASS-TRANSFER AT AN ENCLOSURE BETWEEN 2 HORIZONTAL DISKS
    SEDAHMED, GH
    NIRDOSH, I
    CHEMICAL ENGINEERING COMMUNICATIONS, 1991, 101 : 93 - 102
  • [9] MHD NATURAL-CONVECTION AND MASS-TRANSFER THROUGH A HORIZONTAL POROUS CHANNEL
    RAPTIS, A
    ACTA PHYSICA HUNGARICA, 1983, 54 (1-2) : 213 - 215
  • [10] COMBINED HEAT AND MASS-TRANSFER BY NATURAL-CONVECTION AT HORIZONTAL CYLINDER ELECTRODES
    SARAC, H
    WRAGG, AA
    PATRICK, MA
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1991, 18 (06) : 853 - 863
12345