摘要
建立了一种不可逆谐振子系统布雷顿热机循环模型.基于量子主方程和半群方法,分析了不可逆谐振子系统布雷顿热机循环的时间演化公式.推导出循环在两等频率过程的时间、输出功、效率和功率的一般表达式,并获得了效率和功率与低等频率过程时间之间的关系曲线.通过数值解,对谐振子系统布雷顿热机循环的性能参数进行了优化分析.
A cycle model of an irreversible Brayton heat engine working with harmonic systems is established in this paper. Based on quantum master question and semi - group approach, the time evolution of the cycle is analyzed. General expressions of the times spent on two constant - frequency processes, work, thermal efficiency and power output are derived. Moreover, explicit curves between thermal efficiency and power output with the time of low constant - frequency processes are generated. By means of numerical analysis,the parameters of the performance of the heat engine cycle are optimized.
出处
《南昌大学学报（工科版）》
CAS
2006年第1期23-27,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)
关键词
谐振子系统
布雷顿热机
内不可逆性
输出功率
harmonic systems
Brayton heat engine
internal irreversiblities
power output
作者简介
王建辉（1980-），男，硕士研究生．
