工质非线性变比热时空气标准Lenoir循环性能分析  

Performance analysis of an air-standard Lenoir cycle with non-linear variable specific heats of working fluid

作　　者：周骏乐 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学,湖北武汉430033

出　　处：《节能》2015年第2期19-23,2,共5页Energy Conservation

基　　金：国家自然科学基金项目(项目编号:10905093)

摘　　要：为了使循环的热力学分析更接近工程实际,建立了工质比热随温度非线性变化时空气标准Lenoir循环模型,应用经典热力学理论和方法研究其功和效率特性。与工质恒比热、工质线性变比热时的空气标准Lenoir循环性能进行分析比较,结果表明工质非线性变比热对循环性能具有较大的影响。To make the thermodynamic analysis of a cycle much closer to practical engineering,a thermodynamic model of an air-standard Lenoir cycle with the non-linear relation between specific heats of working fluid and its temperature is established,and the work output and efficiency characteristics are researched by using the classical thermodynamic theory and method in this paper.Comparing with the thermodynamic performances of air-standard Lenoir cycle with constant specific heats of working fluid and linear variable specific heats of working fluid,it shows that the influences of working fluid with nonlinear variable specific heats on the cycle performances are obvious.

关 键 词：经典热力学 空气标准Lenoir循环 非线性变比热 功和效率特性 

分 类 号：TK12[动力工程及工程热物理—工程热物理]