不可逆费米奥托制冷循环性能分析

基于回热式不可逆奥托制冷循环和理想费米气体的状态方程,导出以费米气体为工质的奥托制冷循环的输入功、制冷量、制冷系数等重要性能参数的表达式,以此讨论费米气体的量子简并性、回热及内不可逆性对循环性能的影响,给出以理想费米气体为工质的回热式不可逆奥托制冷循环的性能特征。所得结果有助于进一步了解经典气体奥托制冷循环与量子气体奥托制冷循环的区别和联系。

Performance analysis of an irreversible Fermi Otto refrigeration cycle

Based on an irreversible regenerative Otto refrigeration cycle model and the equation of state of an ideal Fermi gas,the expressions of some important performance parameters such as the work input,refrigeration load and coefficient of performance of an Otto refrigeration cycle working with a Fermi gas are derived,which are used to discuss the influence of the quantum degeneracy of the Fermi gas,regeneration and internal irreversibitity on the performance of the cycle,The performance characteristics of an irre- versible regenerative Otto refrigeration cycle using the Fermi gas as the working substance are obtained.The results obtained here will be helpful to further understand the difference and connection between the classical and quantum Otto refrigeration cycles.