Optimization criteria of a Bose Brayton heat engine

doi:10.1088/1674-1056/21/1/010505

中国物理B ›› 2012, Vol. 21 ›› Issue (1): 10505-010505.doi: 10.1088/1674-1056/21/1/010505

Optimization criteria of a Bose Brayton heat engine

汪浩, 吴国兴

Tianhua College, Shanghai Normal University, Shanghai 201815, China

收稿日期:2011-04-24 修回日期:2011-07-22 出版日期:2012-01-15 发布日期:2012-01-20
基金资助:
Project supported by the Program for Excellent Young Teachers Foundation of Shanghai, China (Grant No. thc-20100036).

Optimization criteria of a Bose Brayton heat engine

Wang Hao (汪浩)^† and Wu Guo-Xing(吴国兴)

Tianhua College, Shanghai Normal University, Shanghai 201815, China

Received:2011-04-24 Revised:2011-07-22 Online:2012-01-15 Published:2012-01-20
Supported by:
Project supported by the Program for Excellent Young Teachers Foundation of Shanghai, China (Grant No. thc-20100036).

摘要/Abstract

摘要： An irreversible cycle model of the quantum Bose Brayton engine is established, in which finite-time processes and irreversibilities in two adiabatic processes are taken into account. Based on the model, expressions for the power output and the efficiency are derived. By using a numerical computation, the optimal relationship between the power output and the efficiency of an irreversible Bose Brayton engine is obtained. The optimal regions of the power output and the efficiency are determined. It is found that the influences of the irreversibility and the quantum degeneracy on the main performance parameters of the Bose Brayton engine are remarkable. The results obtained in the present paper can provide some new theoretical information for the optimal design and the performance improvement of a real Brayton engine.

关键词: irreversibility, finite time thermodynamic, Bose Brayton engine, optimum criterion

Abstract: An irreversible cycle model of the quantum Bose Brayton engine is established, in which finite-time processes and irreversibilities in two adiabatic processes are taken into account. Based on the model, expressions for the power output and the efficiency are derived. By using a numerical computation, the optimal relationship between the power output and the efficiency of an irreversible Bose Brayton engine is obtained. The optimal regions of the power output and the efficiency are determined. It is found that the influences of the irreversibility and the quantum degeneracy on the main performance parameters of the Bose Brayton engine are remarkable. The results obtained in the present paper can provide some new theoretical information for the optimal design and the performance improvement of a real Brayton engine.

Key words: irreversibility, finite time thermodynamic, Bose Brayton engine, optimum criterion

中图分类号: (Thermodynamics)

05.70.-a

07.20.Mc (Cryogenics; refrigerators, low-temperature detectors, and other low-temperature equipment) 44.90.+c (Other topics in heat transfer)

汪浩, 吴国兴. Optimization criteria of a Bose Brayton heat engine[J]. 中国物理B, 2012, 21(1): 10505-010505.

Wang Hao (汪浩) and Wu Guo-Xing(吴国兴) . Optimization criteria of a Bose Brayton heat engine[J]. Chin. Phys. B, 2012, 21(1): 10505-010505.

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Optimization criteria of a Bose Brayton heat engine

Optimization criteria of a Bose Brayton heat engine

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