Effect of interfacial phenomena on evaporative heat transfer in micro heat pipes

被引:62
作者
Sartre, V [1 ]
Zaghdoudi, MC [1 ]
Lallemand, M [1 ]
机构
[1] Inst Natl Sci Appl, Ctr Therm Lyon, UPRESA CNRS 5008, F-69621 Villeurbanne, France
关键词
micro heat pipe; microregion; numerical simulation; heat transfer; contact angle;
D O I
10.1016/S1290-0729(00)00205-2
中图分类号
O414.1 [热力学];
学科分类号
摘要
A three-dimensional steady-stare model for predicting heat transfer in a micro heat pipe array is presented. Three coupled models, solving the microregion equations, the two-dimensional wall heat conduction problem and the longitudinal capillary two-phase flow have been developed. The results, presented for an aluminium/ammonia triangular micro heat pipe array, show that the major part of the total heat input in the evaporator section goes through the microregion, In addition, both the apparent contact angle and the heat transfer rate in the microregion increase with an increasing wall superheat. It is also shown that the inner wall heat flux and temperatures as well as the contact angle decrease all along the evaporator section. (C) 2000 Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码:498 / 504
页数:7
相关论文
共 11 条
[1]   STEADY-STATE MODELING AND TESTING OF A MICRO HEAT PIPE [J].
BABIN, BR ;
PETERSON, GP ;
WU, D .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1990, 112 (03) :595-601
[2]   Thermal control of electronic equipment by heat pipes [J].
Groll, M ;
Schneider, M ;
Sartre, V ;
Zaghdoudi, MC ;
Lallemand, M .
REVUE GENERALE DE THERMIQUE, 1998, 37 (05) :323-352
[3]   HEAT-TRANSFER IN THE MENISCUS THIN-FILM TRANSITION REGION [J].
HOLM, FW ;
GOPLEN, SP .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1979, 101 (03) :543-547
[4]  
KAMOTANI Y, 1978, 3 INT HEAT PIP C PAL, P128
[5]   HEAT-TRANSFER DURING EVAPORATION ON CAPILLARY-GROOVED STRUCTURES OF HEAT PIPES [J].
KHRUSTALEV, D ;
FAGHRI, A .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1995, 117 (03) :740-747
[6]   Fluid flow effects in evaporation from liquid-vapor meniscus [J].
Khrustalev, D ;
Faghri, A .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1996, 118 (03) :725-730
[7]   A ONE-DIMENSIONAL MODEL OF A MICRO-HEAT PIPE DURING STEADY-STATE OPERATION [J].
LONGTIN, JP ;
BADRAN, B ;
GERNER, FM .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1994, 116 (03) :709-715
[8]   Temperature variation and heat transfer in triangular grooves with an evaporating film [J].
Ma, HB ;
Peterson, GP .
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, 1997, 11 (01) :90-97
[9]   ANALYSIS OF THE HEAT-TRANSFER COEFFICIENT OF GROOVED HEAT PIPE EVAPORATOR WALLS [J].
STEPHAN, PC ;
BUSSE, CA .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1992, 35 (02) :383-391
[10]   INTERLINE HEAT-TRANSFER COEFFICIENT OF AN EVAPORATING WETTING FILM [J].
WAYNER, PC ;
KAO, YK ;
LACROIX, LV .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1976, 19 (05) :487-492