Numerical study of fin-spacing effects in annular-finned tube heat exchangers

被引：170

作者：

Mon, MS ^{[1
]}

Gross, U ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Warmetech & Thermodynam, D-09599 Freiberg, Germany

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2004年 / 47卷 / 8-9期

关键词：

finned-tube bundle; forced convection; heat transfer; pressure drop; numerical;

D O I：

10.1016/j.ijheatmasstransfer.2003.09.034

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effects of fin spacing on four-row annular-finned tube bundles in staggered and in-line arrangements are investigated by the three-dimensional numerical study. Renormalization group theory (RNG) based k-epsilon turbulence model is allowed to predict the unsteady flow and conjugate heat transfer. According to the flow visualization results, the boundary layer developments and horseshoe vortices between the fins are found to be substantially dependent on the fin spacing to height ratio and Reynolds number. The heat transfer and pressure drop results for various fin spacings are presented. In addition, the numerical results are compared with the existing correlations. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1953 / 1964

页数：12

共 20 条

[1]

ANTUFEV VM, 1968, TEPLOENERGETIKA, V15, P31

[2]

Briggs D.E., 1963, Chemical Engineering Progress Symposium Series, V59, P1

[3] CONJUGATE HEAT-TRANSFER OF A FINNED TUBE .A. HEAT-TRANSFER BEHAVIOR AND OCCURRENCE OF HEAT-TRANSFER REVERSAL [J].

FIEBIG, M ;

GROSSEGORGEMANN, A ;

CHEN, Y ;

MITRA, NK .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1995, 28 (02) :133-146

[4] LOCAL HEAT-TRANSFER BEHAVIOR AND ITS IMPACT ON A SINGLE-ROW, ANNULARLY FINNED TUBE HEAT-EXCHANGER [J].

HU, X ;

JACOBI, AM .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1993, 115 (01) :66-74

[5] Air-side flow and heat transfer in compact heat exchangers: A discussion of enhancement mechanisms [J].

Jacobi, AM ;

Shah, RK .

HEAT TRANSFER ENGINEERING, 1998, 19 (04) :29-41

[6] The thermal-hydraulic characteristics of staggered circular finned-tube heat exchangers under dry and dehumidifying conditions [J].

Jang, JY ;

Lai, JT ;

Liu, LC .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1998, 41 (21) :3321-3337

[7]

Kuntish V. B., 1974, Heat Transfer - Soviet Research, V6, P5

[8] Effect of fin spacing on convection in a plate fin and tube heat exchanger [J].

Romero-Méndez, R ;

Sen, M ;

Yang, KT ;

McCclain, R .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2000, 43 (01) :39-51

[9] 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

[10] 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

← 1 2 →