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

• 作者: 郭君诚 陈金灿 黄传昆
• 来源期刊: 中国物理B（英文版）
• 关键词: generalized Carnot cycle low-dissipation unified model performance characteristic
• 年，卷（期）: 2015,（11）
• 页码范围: 110506-1-110506-9
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/11/110506

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.