Compact heat exchangers modeling: Condensation

被引：39

作者：

Garcia-Cascales, J. R. ^{[1
]}

Vera-Garcia, F. ^{[1
]}

Gonzalvez-Macia, J. ^{[2
]}

Corberan-Salvador, J. M. ^{[2
]}

Johnson, M. W. ^{[3
]}

Kohler, G. T. ^{[3
]}

机构：

[1] Tech Univ Cartagena, Thermal & Fluid Engn Dept, Murcia 30202, Spain

[2] Univ Politecn Valencia, Appl Thermodynam Dept, Valencia, Spain

[3] Modine Mfg Co, Commercial Prod Grp, Racine, WI USA

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2010年 / 33卷 / 01期

关键词：

Heat exhanger; Microchannel Condensation; Condenser; Modelling; Simulation; Comparison; Experiment; HYDRAULIC DIAMETER; PRESSURE-DROP; 2-PHASE FLOW; TUBES; FLAT; REFRIGERANTS; FRICTION; GRADIENT; R-134A; R134A;

D O I：

10.1016/j.ijrefrig.2009.08.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A model for the analysis of compact heat exchangers working as either evaporators or condensers is presented. This paper will focus exclusively on condensation modeling. The model is based on cell discretization of the heat exchanger in such a way that cells are analyzed following the path imposed by the refrigerant flowing through the tubes. It has been implemented in a robust code developed for assisting with the design of compact heat exchangers and refrigeration systems. These heat exchangers consist of serpentine fins that are brazed to multi-port tubes with internal microchannels. This paper also investigates a number of correlations used for the calculation of the refrigerant side heat transfer coefficient. They are evaluated comparing the predicted data with the experimental data. The working fluids used in the experiments are R134a and R410A, and the secondary fluid is air. The experimental facility is briefly described and some conclusions are finally drawn. (c) 2009 Elsevier Ltd and IIR. All rights reserved.

引用

页码：135 / 147

页数：13

共 47 条

[1] Friction factor and heat transfer coefficient of R134a liquid flow in mini-channels [J].

Agostini, B ;

Watel, B ;

Bontemps, A ;

Thonon, B .

APPLIED THERMAL ENGINEERING, 2002, 22 (16) :1821-1834

[2]

Akers W.W., 1959, Chemical Engineering Progress Symposium Series, V55, P171

[3] Local condensation heat transfer rates in fine passages [J].

Baird, JR ;

Fletcher, DF ;

Haynes, BS .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2003, 46 (23) :4453-4466

[4] Measurement and modeling of condensation heat transfer coefficients in circular microchannels [J].

Bandhauer, Todd M. ;

Agarwal, Akhil ;

Garimella, Srinivas .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2006, 128 (10) :1050-1059

[5] CYRANO: A computational model for the detailed design of plate-fin-and-tube heat exchangers using pure and mixed refrigerants [J].

Bensafi, A ;

Borg, S ;

Parent, D .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 1997, 20 (03) :218-228

[6] An elemental NTU-ε model for vapour-compression liquid chillers [J].

Browne, MW ;

Bansal, PK .

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2001, 24 (07) :612-627

[7] Update on condensation heat transfer and pressure drop inside minichannels [J].

Cavallini, A ;

Doretti, L ;

Matkovic, M ;

Rossetto, L .

HEAT TRANSFER ENGINEERING, 2006, 27 (04) :74-87

[8] Two-phase frictional pressure gradient of R236ea, R134a and R410A inside multi-port mini-channels [J].

Cavallini, A ;

Del Col, D ;

Doretti, L ;

Matkovic, M ;

Rossetto, L ;

Zilio, C .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2005, 29 (07) :861-870

[9] Condensation heat transfer and pressure gradient inside multiport minichannels [J].

Cavallini, A ;

Del Col, D ;

Doretti, L ;

Matkovic, M ;

Rossetto, L ;

Zilio, C .

HEAT TRANSFER ENGINEERING, 2005, 26 (03) :45-55

[10] Condensation of halogenated refrigerants inside smooth tubes [J].

Cavallini, A ;

Censi, G ;

Del Col, D ;

Doretti, L ;

Longo, GA ;

Rossetto, L .

HVAC&R RESEARCH, 2002, 8 (04) :429-451

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