不可逆量子气体奥托热机循环性能分析  

Performance Analysis of an Irreversible Quantum Otto Power Cycle

作　　者：毛之远[1] 何济洲[1] 周枫[2] 

机构地区：[1]南昌大学物理系,江西南昌330031 [2]南昌大学机电工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2007年第2期126-130,共5页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学基金资助项目(10465003);江西省自然科学基金资助项目(0412011)

摘　　要：建立了一个一般的不可逆量子奥托热机循环模型,基于量子气体的状态方程,导出以量子气体为工质的奥托热机的效率、输出功等重要性能参数的表达式,以此讨论理想量子气体的量子简并性及内不可逆性对该热机性能的影响,分析了不可逆奥托热机的性能特征.所得结果有助于进一步了解以经典气体为工质的奥托热机和以量子气体为工质的奥托热机的区别和联系.A commonly irreversible quantum Otto power cycle model was built in this paper. Based on the equation of state of an ideal quantum gas, the expressions of some important performance parameters such as the work output and efficiency of an Otto power cycle working with a quantum gas were derived, which were used to discuss the influence of the quantum degeneracy of the gas and internal irreversibility on the performance of the cycle. The performance characteristics of an irreversible Otto power cycle using the quantum gas as working substance was analyzed. The results obtained here will be helpful to further understand the difference and connection between the classical and quantum Otto power cycles.

关 键 词：量子简并性 奥托热机 内不可逆性 性能分析 

分 类 号：O414.1[理学—理论物理]