中国物理B ›› 2015, Vol. 24 ›› Issue (11): 110506-110506.doi: 10.1088/1674-1056/24/11/110506

• GENERAL • 上一篇    下一篇

Performance characteristics of low-dissipative generalized Carnot cycles with external leakage losses

黄传昆a, 郭君诚b, 陈金灿a   

  1. a Department of Physics, Xiamen University, Xiamen 361005, China;
    b College of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China
  • 收稿日期:2015-05-21 修回日期:2015-07-18 出版日期:2015-11-05 发布日期:2015-11-05
  • 通讯作者: Guo Jun-Cheng, Chen Jin-Can E-mail:junchengguo@qq.com;jcchen@xmu.edu.cn
  • 基金资助:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11405032).

Performance characteristics of low-dissipative generalized Carnot cycles with external leakage losses

Huang Chuan-Kun (黄传昆)a, Guo Jun-Cheng (郭君诚)b, Chen Jin-Can (陈金灿)a   

  1. a Department of Physics, Xiamen University, Xiamen 361005, China;
    b College of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China
  • Received:2015-05-21 Revised:2015-07-18 Online:2015-11-05 Published:2015-11-05
  • Contact: Guo Jun-Cheng, Chen Jin-Can E-mail:junchengguo@qq.com;jcchen@xmu.edu.cn
  • Supported by:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 11405032).

摘要: Under the assumption of low-dissipation, a unified model of generalized Carnot cycles with external leakage losses is established. Analytical expressions for the power output and efficiency are derived. The general performance characteristics between the power output and the efficiency are revealed. The maximum power output and efficiency are calculated. The lower and upper bounds of the efficiency at the maximum power output are determined. The results obtained here are universal and can be directly used to reveal the performance characteristics of different Carnot cycles, such as Carnot heat engines, Carnot-like heat engines, flux flow engines, gravitational engines, chemical engines, two-level quantum engines, etc.

关键词: generalized Carnot cycle, low-dissipation, unified model, performance characteristic

Abstract: Under the assumption of low-dissipation, a unified model of generalized Carnot cycles with external leakage losses is established. Analytical expressions for the power output and efficiency are derived. The general performance characteristics between the power output and the efficiency are revealed. The maximum power output and efficiency are calculated. The lower and upper bounds of the efficiency at the maximum power output are determined. The results obtained here are universal and can be directly used to reveal the performance characteristics of different Carnot cycles, such as Carnot heat engines, Carnot-like heat engines, flux flow engines, gravitational engines, chemical engines, two-level quantum engines, etc.

Key words: generalized Carnot cycle, low-dissipation, unified model, performance characteristic

中图分类号:  (Nonequilibrium and irreversible thermodynamics)

  • 05.70.Ln
05.20.-y (Classical statistical mechanics)