Influence of metal foam on heat transfer characteristics of refrigerant-oil mixture flow boiling inside circular tubes

被引：40

作者：

Zhu, Yu ^{[1
]}

Hu, Haitao ^{[1
]}

Ding, Guoliang ^{[1
]}

Sun, Shuo ^{[1
]}

Jing, Yaolong ^{[1
,2
]}

机构：

[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China

[2] Carrier Corp, Prod Mkt, Shanghai 200001, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 50卷 / 01期

关键词：

Flow boiling; Flow pattern; Heat transfer; Metal foam; Oil; HORIZONTAL TUBES; THERMAL-ANALYSIS; 2-PHASE FLOW; PART II; EXCHANGERS;

D O I：

10.1016/j.applthermaleng.2012.06.045

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The influence of metal foam on heat transfer characteristics of refrigerant and oil mixture flow boiling inside circular tubes was experimentally investigated on two horizontal circular tubes filled with 5 PPI and 10 PPI copper foams, respectively. The experimental conditions include saturation pressure of 995 kPa, mass flux from 10 to 30 kg m(-2) s(-1), heat flux from 3.1 to 9.3 kW m(-2), inlet vapor quality from 0.175 to 0.775 and oil concentration from 0% to 5%. The experimental results reveal that metal foam enhances the flow boiling heat transfer coefficient of refrigerant by a maximum of 185%, while the enhancement effect of metal foam is weakened at oil presence conditions. A new correlation is developed, which can agree with 98% of the experimental data within a deviation of +/- 30%. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1246 / 1256

页数：11

共 19 条

[1]

[Anonymous], HVAC R RES IN PRESS

[2]

Calmidi Varaprasad Venkata, 1998

[3] The effective thermal conductivity of high porosity fibrous metal foams [J].

Calmidi, VV ;

Mahajan, RL .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1999, 121 (02) :466-471

[4] Heat transfer correlation for high-porosity open-cell foam [J].

Ghosh, Indranil .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2009, 52 (5-6) :1488-1494

[5] Heat transfer characteristics of R410A-oil mixture flow boiling inside a 7 mm straight microfin tube [J].

Hu, Haitao ;

Ding, Guoliang ;

Wang, Kaijian .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2008, 31 (06) :1081-1093

[6] Heat transfer characteristics of R410A-oil mixture flow boiling inside a 7 mm straight smooth tube [J].

Hu, Haitao ;

Ding, Guoliang ;

Wei, Wenjian ;

Wang, Zhence ;

Wang, Kaijian .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2008, 32 (03) :857-869

[7] Measurement and Correlation of Flow-Boiling Heat Transfer of a R-410A/Oil Mixture Inside a 4.18 mm Straight Smooth Tube [J].

Hu, Haitao ;

Ding, Guoliang ;

Huang, Xiangchao ;

Deng, Bin ;

Gao, Yifeng .

HVAC&R RESEARCH, 2009, 15 (02) :287-314

[8] Experimental and numerical study of single and two-phase flow and heat transfer in aluminum foams [J].

Li, H. Y. ;

Leong, K. C. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2011, 54 (23-24) :4904-4912

[9] Thermal analysis on metal-foam filled heat exchangers. Part I: Metal-foam filled pipes [J].

Lu, W. ;

Zhao, C. Y. ;

Tassou, S. A. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 49 (15-16) :2751-2761

[10] DESCRIBING THE UNCERTAINTIES IN EXPERIMENTAL RESULTS [J].

MOFFAT, RJ .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 1988, 1 (01) :3-17

← 1 2 →