Flow condensation in smooth and micro-fin tubes with HCFC-22, HFC-134a and HFC-410A refrigerants part II: Design equations

被引：34

作者：

Tang, LY

Ohadi, MM

Johnson, AT

机构：

[1] Outokumpu Copper Franklin Inc, Franklin, KY 42134 USA

[2] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[3] Univ Maryland, Dept Biol Resources Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF ENHANCED HEAT TRANSFER | 2000年 / 7卷 / 05期

关键词：

alternative refrigerant; single-phase; flow condensation; micro-fin tube; heat transfer enhancement; correlation;

D O I：

10.1615/JEnhHeatTransf.v7.i5.20

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An empirical study of single-phase convection and how condensation heat transfer in horizontal tubes was conducted. Three refrigerants (HCFC-22, HFC-134a and HFC-410A), a smooth tube, and three micro-fin tubes (axial, helical and crosshatch enhancement) were examined. Commonly cited correlations were evaluated, utilizing the experimental data obtained in Part I of this study. Although these correlations had fairly good agreement with HCFC-22 and HFC-134 results, ail of them failed to predict HFC-410A performance. A modified Shah equation was developed for smooth tube annular flow condensation, which overcomes the shortcomings of the existing correlations. Furthermore, design equations were developed for single-phase heat transfer and two-phase condensation with all three micro-fin tubes investigated, and covering all three refrigerants tested.

引用

页码：311 / 325

页数：15

共 20 条

[1] Experimental Results of Flow Condensation in Smooth and Micro-fin Tubes with HCFC-22, HFC-134a and HFC-410A Refrigerants
Tang, Liangyou
Ohadi, Michael M.
Johnson, Arthur T.
JOURNAL OF ENHANCED HEAT TRANSFER, 2017, 24 (1-6) : 63 - 84
[2] Flow condensation in smooth and micro-fin tubes with HCFC-22, HFC-134a and HFC-410A refrigerants part I: Experimental results
Tang, LY
Ohadi, MM
Johnson, AT
JOURNAL OF ENHANCED HEAT TRANSFER, 2000, 7 (05) : 289 - 310
[3] Design Equations of Flow Condensation in Smooth and Micro-fin Tubes with HCFC-22, HFC-134a and HFC-410 Refrigerants
Tang, Liangyou
Ohadi, Michael M.
Johnson, Arthur T.
JOURNAL OF ENHANCED HEAT TRANSFER, 2017, 24 (1-6) : 85 - 99
[4] Experimental Results of Flow Condensation in Smooth and Micro-fin Tubes with HCFC-22, HFC-134a and HFC-410A Refrigerants Part I: Experimental results
Tang, Liangyou (Leon.Tang@outokumpu.com), 1600, Begell House Inc. (24): : 1 - 6
[5] Global emissions of refrigerants HCFC-22 and HFC-134a: Unforeseen seasonal contributions
Xiang, Bin
Patra, Prabir K.
Montzka, Stephen A.
Miller, Scot M.
Elkins, James W.
Moore, Fred L.
Atlas, Elliot L.
Miller, Ben R.
Weiss, Ray F.
Prinn, Ronald G.
Wofsy, Steven C.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2014, 111 (49) : 17379 - 17384
[6] A comparison of the effect of the electrohydrodynamic technique on the condensation heat transfer of HFC-134a inside smooth and micro-fin tubes
Suriyan Laohalertdecha
Somchai Wongwises
Journal of Mechanical Science and Technology, 2007, 21 : 2168 - 2177
[7] A comparison of the effect of the electrohydrodynamic technique on the condensation heat transfer of HFC-134a inside smooth and micro-fin tubes
Laohalertdecha, Suriyan
Wongwises, Somchai
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2007, 21 (12) : 2168 - 2177
[8] Condensation in three-dimensional micro-fin tube for HFC-134a
Xin, Mingdao
Chen, Qinghua
Cui, Wenzhi
Zhou, Jie
Zhang, Gang
Huagong Xuebao/Journal of Chemical Industry and Engineering (China), 2000, 51 (03): : 358 - 361
[9] Two-phase flow pressure drop of HFC-134a during condensation in smooth and micro-fin tubes at high mass flux
Nualboonrueng, T
Wongwises, S
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2004, 31 (07) : 991 - 1004
[10] An Experimental Investigation of Flow Patterns During Condensation of HFC Refrigerants in Horizontal Micro-Fin Tubes
Singh, Sanjeev
Kukreja, Rajeev
INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION, 2019, 27 (01)

← 1 2 →