Optimal performance analysis of Feynman’s microscopic heat engine
The model of a Feynmans microscope heat engine in a one-dimensional lattice is established in this paper.Based on stochastic master equation,the expressions of the current,efficiency and power output of the heat engine are derived analytically.The performance characteristic curves of the power output versus the efficiency are the loop-shaped ones.It shows that the heat engine is irreversible and its efficiency is far less than the Carnot efficiency.Moreover,the influence of the height of barrier and the temperature ratio on the optimal performance of heat engine is analyzed.The heat engine can work at the optimal operation regime by reasonablly choosing the external parameters.
Feynman’s microscope heat engine Stochastic motion Heat leak Finite time thermodynamics
Yuling Xiao Jizhou He Haitao Cheng
Department of Physics,Nanchang University,Nanchang,P.R.China
国际会议
桂林
英文
1-9
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）