一类不可逆热机的有限时间热力学性能  

Finite Time Thermodynamic Performance of a Class of Irreversible Heat Engines

作　　者：陈林根 倪宁 孙丰瑞 

出　　处：《电站系统工程》1996年第1期1-4,共4页Power System Engineering

摘　　要：基于一类较为普遍的导热规律ｑ∝△（Ｔｎ），研究热阴和热漏对热机最优性能的影响，导出定常态流不可逆卡诺热机的最佳功率、效率关系。所得结果包含了牛顿定律（ｎ＝１）和线性唯象定律（ｎ＝－１）等条件下的特性关系，与仅存在热阻损失时的可逆热机功率效率特性有量和质的区别。Based on a relatively general heat-transfer law. q ∝ △(Tn), the effect of heat resistance and heat leak on the optimal performance of heat engines was studied in this paper.The relation between opimal power output and efficiency for stendy-state irreversible heat engines was derived.The power output versus efficiency characteristics obtained here involved that of Newtowian (n=1) and linear Phenomenal ogical(n= -1) law system, and was quantitatively and qualitatively dif ferent form which of endoreversible heat engines.

关 键 词：有限时间热力学 不可逆热机 导热规律 

分 类 号：TK124[动力工程及工程热物理—工程热物理]