CORRELATIONS FOR PREDICTING THE AIR-SIDE NUSSELT NUMBERS AND FRICTION FACTORS IN CHILLED-WATER COOLING COILS

被引：57

作者：

MIRTH, DR ^{[1
]}

RAMADHYANI, S ^{[1
]}

机构：

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

来源：

EXPERIMENTAL HEAT TRANSFER | 1994年 / 7卷 / 02期

关键词：

D O I：

10.1080/08916159408946477

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental study was conducted to determine Nusselt numbers and friction factors on the air side of wavy-finned, chilled-water cooling coils. General correlations of the dry-surface Nusselt numbers and friction factors were developed from the data obtained from five different cooling coils. A comparison of the Nusselt number correlation to data from the literature revealed that the correlation was generally able to predict the reported Nusselt numbers within 20%. Under wet-surface conditions, the measured Nusselt numbers showed considerable scatter, with some of the results being higher than the corresponding dry-surface values, while others were lower than the dry-surface values. Friction factors were substantially higher under wet-surface conditions. A correlation to predict the friction factors for wet surfaces was also developed.

引用

页码：143 / 162

页数：20

共 36 条

[21]

RAFFELLINI G, 1980, MULTIPHASE TRANSPORT, V2, P765

[22]

Rich D.G., 1973, ASHRAE T, V79, P137

[23]

Rich DG., 1975, ASHRAE T 1, V81, P307

[24] TRANSFER CHARACTERISTICS OF 2-ROW PLATE FIN AND TUBE HEAT-EXCHANGER CONFIGURATIONS [J].

SABOYA, FEM ;

SPARROW, EM .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1976, 19 (01) :41-49

[25] LOCAL AND AVERAGE TRANSFER-COEFFICIENTS FOR ONE-ROW PLATE FIN AND TUBE HEAT-EXCHANGER CONFIGURATIONS [J].

SABOYA, FEM ;

SPARROW, EM .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1974, 96 (03) :265-272

[26]

STEVENS RA, 1976, T ASME, V79, P287

[27]

Tree D, 1976, ASHRAE T, V82, P289

[28]

Webb R.L., 1980, HEAT TRANSFER ENG, V1, P33, DOI DOI 10.1080/01457638008939561

[29]

WEBB RL, ASHRAE T 2, V96, P445

[30]

YOSHII T, 1972, HEAT TRANSFER JAPANE, V1, P51

← 1 2 3 4 →