%0 Journal Article
%T Feynman's ratchet and pawl heat engine in a one-dimensional lattice<br>一维晶格中费曼棘齿-棘爪热机
%A Cheng Hai-Tao
%A He Ji-Zhou
%A <br>程海涛
%A 何济洲
%J 物理学报
%D 2013
%I 
%X In this paper, we studiy the Feynman's ratchet and pawl heat engine in a one-dimensional lattice. The dynamics of the particle is described by a master equation. The expressions of the current, efficiency and power output of the heat engine are derived analytically. The influences of the height of barrier, external load force and the temperature ratio of the heat reservoirs on the efficiency of heat engine are discussed. When the steady-state current is zero, there is a nonzero heat flux transterred from the hot bath to the cold bath, which is similar to the heat leak of the irreversible Carnot model. The curve of the power output versus the efficiency is a loop-shaped one. The heat engine is irreversible and the efficiency is less than the Carnot efficiency. The heat engine can work in optimal operation by optimizing the performance parameters of the heat engine.
%K Feynman’s ratchet and pawl
%K heat leak
%K thermodynamic performance
%K irreversible heat engine<br>费曼棘齿-棘爪
%K 热漏
%K 热力学性能
%K 不可逆热机
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=96293AEB9294B34D55643AA26C943ED9&yid=FF7AA908D58E97FA&iid=38B194292C032A66&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0