Analyses of entransy dissipation, entropy generation and entransy–dissipation-based thermal resistance on heat exchanger optimization

2012 ◽  
Vol 38 ◽  
pp. 31-39 ◽  
Author(s):  
Xuetao Cheng ◽  
Qinzhao Zhang ◽  
Xingang Liang
Keyword(s):  
Heat Exchanger ◽  
Thermal Resistance ◽  
Entropy Generation ◽  
Entransy Dissipation

“Entransy,” and Its Lack of Content in Physics

2014 ◽  
Vol 136 (5) ◽  
Author(s):  
Adrian Bejan
Keyword(s):  
Heat Transfer ◽  
Thermal Resistance ◽  
Entropy Generation ◽  
Solid Body ◽  
Thermodynamic Temperature ◽  
Entransy Dissipation ◽  
Minimum Entropy ◽  
Constructal Law ◽  
Minimum Entropy Generation ◽  
False Claim

Here, I show that “entransy” has no meaning in physics, because, at bottom, it rests on the false claim that in order to transfer heat to a solid body of thermodynamic temperature T, the heat transfer must be proportional to T. Entransy “dissipation” is a number proportional to well known measures of irreversibility such as entropy generation and lost exergy (destroyed available work). Furthermore, the “principle of entransy dissipation minimization” adds nothing to existing work based on minimum entropy generation, minimum thermal resistance, and constructal law. The broader trend illustrated by the entransy hoax is that it is becoming easy to take an existing idea, change the keywords, and publish it as new.

Entropy generation extremum and entransy dissipation extremum for heat exchanger optimization

2009 ◽  
Vol 54 (6) ◽  
pp. 943-947 ◽  
Author(s):  
XiongBin Liu ◽  
JiAn Meng ◽  
ZengYuan Guo
Keyword(s):  
Heat Exchanger ◽  
Entropy Generation ◽  
Entransy Dissipation
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