Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating

doi:10.1088/1674-1056/22/8/080509

中国物理B ›› 2013, Vol. 22 ›› Issue (8): 80509-080509.doi: 10.1088/1674-1056/22/8/080509

Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating

程雪涛, 梁新刚

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, School of Aerospace, Tsinghua University, Beijing 100084, China

收稿日期:2013-01-02 修回日期:2013-01-31 出版日期:2013-06-27 发布日期:2013-06-27
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 51106082) and the Tsinghua University Initiative Scientific Research Program.

Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating

Cheng Xue-Tao (程雪涛), Liang Xin-Gang (梁新刚)

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, School of Aerospace, Tsinghua University, Beijing 100084, China

Received:2013-01-02 Revised:2013-01-31 Online:2013-06-27 Published:2013-06-27
Contact: Liang Xin-Gang E-mail:liangxg@tsinghua.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 51106082) and the Tsinghua University Initiative Scientific Research Program.

摘要/Abstract

摘要： Heat exchangers are widely used in industry, and analyses and optimizations of the performance of heat exchangers are important topics. In this paper, we define the concept of entropy resistance based on the entropy generation analyses of a one-dimensional heat transfer process. With this concept, a two-stream parallel flow heat exchanger with viscous heating is analyzed and discussed. It is found that the minimization of entropy resistance always leads to the maximum heat transfer rate for the discussed two-stream parallel flow heat exchanger, while the minimizations of entropy generation rate, entropy generation numbers, and revised entropy generation number do not always.

关键词: entropy generation minimization, heat exchanger, entropy resistance, analyses

Abstract: Heat exchangers are widely used in industry, and analyses and optimizations of the performance of heat exchangers are important topics. In this paper, we define the concept of entropy resistance based on the entropy generation analyses of a one-dimensional heat transfer process. With this concept, a two-stream parallel flow heat exchanger with viscous heating is analyzed and discussed. It is found that the minimization of entropy resistance always leads to the maximum heat transfer rate for the discussed two-stream parallel flow heat exchanger, while the minimizations of entropy generation rate, entropy generation numbers, and revised entropy generation number do not always.

Key words: entropy generation minimization, heat exchanger, entropy resistance, analyses

中图分类号: (Thermodynamics)

05.70.-a

44.90.+c (Other topics in heat transfer)

程雪涛, 梁新刚. Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating[J]. 中国物理B, 2013, 22(8): 80509-080509.

Cheng Xue-Tao (程雪涛), Liang Xin-Gang (梁新刚). Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating[J]. Chin. Phys. B, 2013, 22(8): 80509-080509.

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Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating

Entropy resistance analyses of a two-stream parallel flow heat exchanger with viscous heating

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