以范德瓦耳斯气体为工质的3种热机循环效率  

THREE KINDS OF CYCLE EFFICIENCY OF HEAT ENGINE WITH THE VAN DER WAALS GAS AS WORKING SUBSTANCE

作　　者：孙久勋[1] 

机构地区：[1]电子科技大学物理电子学院,四川成都610054

出　　处：《物理与工程》2013年第6期22-25,共4页Physics and Engineering

基　　金：985工程优秀教学团队支持计划;项目编号:A1098521-041

摘　　要：利用热力学的普遍理论推导了范德瓦尔斯气体热力学函数的表达式,再求出绝热过程和3种等值过程中功和热量的表达式.在此基础上,研究了斯特林循环、奥拓循环和狄塞尔循环的功和效率,并计算和分析了3种循环效率随各种参量变化的关系.Using the general theory of thermodynamics,we deduced the expressions of thermodynamic functions of Van der Waals gas,and calculated the expressions of work and heat in the adiabatic process and three kinds of equivalent process.Based on that,we studied the work and efficiencies of Stirling cycle,Otto cycle,and Diesel cycle.Relationships between the three kinds of cycle efficiency and the change of various parameters were calculated and analyzed.

关 键 词：范德瓦尔斯气体 斯特林循环 奥拓循环 狄塞尔循环 

分 类 号：O414.1[理学—理论物理]