HEAT-TRANSFER CHARACTERIZATION OF A FINNED-TUBE HEAT-EXCHANGER (WITH AND WITHOUT CONDENSATION)

被引：33

作者：

IDEM, SA

JACOBI, AM

GOLDSCHMIDT, VW

机构：

[1] JOHNS HOPKINS UNIV,DEPT MECH ENGN,BALTIMORE,MD 21218

[2] PURDUE UNIV,SCH MECH ENGN,W LAFAYETTE,IN 47907

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 01期

关键词：

Augmentation and enhancement; Heat exchangers;

D O I：

10.1115/1.2910366

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effects upon the performance of an air-to-water copper finned-tube crossflow heat exchanger due to condensation on the outer surface are considered. A fourtube, two-pass heat exchanger was tested over a Reynolds number range (based on hydraulic diameter) from 400 to 1500. The coil was operated both in overall parallel and overall counterflow configurations. Convective heat and mass transfer coefficients are presented as plots of Colburn j-factor versus Reynolds number. Pressure losses are, similarly, presented as plots of the friction factor versus Reynolds number. Enhancement of sensible heat transfer due to the presence of a condensate film is also considered. © 1990 by ASME.

引用

页码：64 / 70

页数：7

共 23 条

[1]

BRYAN WL, 1967, ASHRAE T, V68, P237

[2]

BRYAN WL, 1961, ASHRAE T, V67, P393

[3]

BUGLAYEV VT, 1972, HEAT TRANSFER SOVIET, V4, P1

[4] Mass transfer (absorption) coefficients - Prediction from data on great transfer and fluid friction [J].

Chilton, TH ;

Colburn, AP .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1934, 26 :1183-1187

[5]

Colburn AP, 1933, T AM INST CHEM ENG, V29, P174

[6]

ELMHADY AH, 1975, THESIS CARLETON U OT

[7]

FUKS SN, 1970, THERM ENG+, V17, P84

[8]

GONZALES GJ, 1982, THESIS PURDUE U

[9]

Guillory J, 1973, ASHRAE T, V79, P146

[10]

HONDA H, 1987, INT J HEAT MASS TRAN, V30, P1733

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