Enhanced boiling heat transfer using radial fins

被引：0
作者：
P. Razelos
S. Das
R. N. Krikkis
机构：
[1] College of Staten Island/CUNY,Department of Engineering Science and Physics
[2] College of Staten Island/CUNY,undefined
来源：
Heat and Mass Transfer | 2008年 / 44卷
关键词：
Heat Transfer Coefficient; Bifurcation Diagram; Biot Number; Multiple Steady State; Heat Transfer Mode;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A numerical bifurcation analysis is carried out in order to determine the solution structure of radial fins subjected to multi-boiling heat transfer mode. One-dimensional conduction is employed throughout the thermal analysis. The fluid heat transfer coefficient is temperature dependent on the three regimes of phase-change of the fluid. Six fin profiles, defined in the text, are considered. Multiplicity structure is obtained to determine different types of bifurcation diagrams, which describe the dependence of a state variable of the system like the temperature or the heat dissipation on the fin design parameters, conduction–convection parameter (CCP) or base temperature difference (ΔT). Specifically, the effects of ΔT, CCP and Biot number are analyzed. The results are presented graphically, showing the significant behavioral features of the heat rejection mechanism.
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页码：705 / 715
页数：10
相关论文
共 41 条
[1]  
Haley KW(1965)Heat transfer from a fin to a boiling liquid Chem Eng Sci 20 711-137
[2]  
Westwater JW(2004)On the optimum design of circular radiating fins with fin-to-fin-and fin-to-base radiant interaction ASME J Heat Transf 126 134-25
[3]  
Krikkis R(2003)The optimum design of radiating and convecting-radiating circular fins Heat Transf Eng 3 1-811
[4]  
Razelos P(2002)Optimum design of spacecraft radiators with longitudinal and triangular fins ASME J Heat Transf 124 805-1192
[5]  
Razelos P(2000)Optimum dimensions of convecting-radiating fins. Part I: longitudinal fins Appl Therm Eng 20 1161-821
[6]  
Krikkis R(1967)Temperature distribution in a fin partially cooled by nucleate boiling AIChE J 4 817-2284
[7]  
Krikkis R(1985)Determination of the temperature distribution in an extended surface with a non-uniform heat transfer coefficient Int J Heat Mass Transf 12 2279-349
[8]  
Razelos P(1987)An analytic study of boiling heat transfer from a fin Int J Heat Mass Transf 2 341-1515
[9]  
Razelos P(1994)Fins with temperature dependent surface heat flux-I. Single heat transfer mode Int J Heat Mass Transf 10 1509-37
[10]  
Kakatsios X(1971)Performance of transverse fins for boiling heat transfer Chem Eng Progress Symp Ser 113 30-1968
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