Constructal optimization for geometry of cavity by taking entransy dissipation minimization as objective

2009 ◽  
Vol 52 (12) ◽  
pp. 3504-3513 ◽  
Author(s):  
ZhiHui Xie ◽  
LinGen Chen ◽  
FengRui Sun
Keyword(s):  
Entransy Dissipation

Constructal optimization on T-shaped cavity based on entransy dissipation minimization

2009 ◽  
Vol 54 (23) ◽  
pp. 4418-4427 ◽  
Author(s):  
ZhiHui Xie ◽  
LinGen Chen ◽  
FengRui Sun
Keyword(s):  
Entransy Dissipation

Entransy dissipation minimization for generalized heat exchange processes

2016 ◽  
Vol 59 (10) ◽  
pp. 1507-1516 ◽  
Author(s):  
ShaoJun Xia ◽  
LinGen Chen ◽  
ZhiHui Xie ◽  
FengRui Sun
Keyword(s):  
Heat Exchange ◽  
Entransy Dissipation ◽  
Exchange Processes

scholarly journals Entransy dissipation minimization for optimization of heat exchanger design

2011 ◽  
Vol 56 (20) ◽  
pp. 2174-2178 ◽  
Author(s):  
XueFang Li ◽  
JiangFeng Guo ◽  
MingTian Xu ◽  
Lin Cheng
Keyword(s):  
Heat Exchanger ◽  
Entransy Dissipation ◽  
Heat Exchanger Design

scholarly journals Constructal Equivalent Thermal Resistance Minimization for Tau-Shaped Fin

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1206
Author(s):  
Shuhuan Wei ◽  
Huijun Feng ◽  
Lingen Chen ◽  
Yanlin Ge
Keyword(s):  
Thermal Resistance ◽  
Heat Transfer Performance ◽  
Constructal Theory ◽  
Width Ratio ◽  
Entransy Dissipation ◽  
Optimal Length ◽  
Entransy Theory ◽  
Engineering Designs ◽  
Material Volume ◽  
Maximum Thermal Resistance

With the aid of constructal theory and entransy theory, a Tau-shaped fin (TAUSF) is investigated in this paper, and the widths of the bend end and elemental fins are assumed to be different. The construct of the TAUSF is optimized by the minimum equivalent thermal resistance (ETR) obtained by entransy dissipation rate. The constraints of total enveloping volume and fin material volume are considered. The results show that in the specified range of width ratio, the twice minimum ETR of the TAUSF can be yielded by an optimal width ratio and an optimal length ratio. In addition, comparing the optimal performance of the TAUSF with the counterpart of a T-shaped fin, the former sacrifices a small amount of heat transfer performance and its stiffness increases due to its structure with the bend end. The optimal structure of the TAUSF yielded from ETR minimization is conspicuously different with the counterpart yielded from maximum thermal resistance minimization. Comparing the thermal performances of the two optimal constructs, the ETR of the former optimal construct is declined by 10.58%, whereas the maximum thermal resistance is augmented by 5.22%. The former optimal construct can lead to the uniformity of temperature gradient and the reduction in thermal stress, and can guide the engineering designs of practical fins.

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