Record number :
1905991
Title of article :
Heat transfer entropy resistance for the analyses of two-stream heat exchangers and two-stream heat exchanger networks
Author/Authors :
Cheng، نويسنده , , XueTao and Liang، نويسنده , , XinGang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Pages :
7
From page :
87
To page :
93
Abstract :
The entropy generation minimization method is often used to analyze heat transfer processes from the thermodynamic viewpoint. In this paper, we analyze common heat transfer processes with the concept of entropy generation, and propose the concept of heat transfer entropy resistance. It is found that smaller heat transfer entropy resistance leads to smaller equivalent thermodynamic force difference with prescribed heat transfer rate and larger heat transfer rate with prescribed equivalent thermodynamic force difference. With the concept of heat transfer entropy resistance, the performance of two-stream heat exchangers (THEs) and two-stream heat exchanger networks (THENs) is analyzed. For the cases discussed in this paper, it is found that smaller heat transfer entropy resistance always leads to better heat transfer performance for THEs and THENs, while smaller values of the entropy generation, entropy generation numbers and revised entropy generation number do not always.
Keywords :
Two-stream heat exchangers , Heat transfer entropy resistance , Heat transfer analyses , Two-stream heat exchanger networks , Entropy generation
Journal title :
Applied Thermal Engineering
Journal title :
Applied Thermal Engineering
Serial Year :
2013
Link To Document :
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