一般传热规律下广义不可逆卡诺热机的构形优化

Configuration Optimization of a Generalized Irreversible Carnot heat Engine under a General Heat Transfer Law

在广义不可逆卡诺热机模型基础上 ,结合一般传热规律 ,得到了在有限结构材料条件下的热机构形优化特性 ,即最佳热导率的定量分配新的关系式。分析了内不可逆性和传热规律等因素对热机构形优化特性的影响 ,发现已有文献的结论是本文所得关系式的特例 。

On the basis of a generalized irreversible Carnot heat engine model and in conjunction with a general heat transfer law the characteristics of heat engine configuration optimization under the condition of finite construction materials were obtained, namely, a new relation of quantitative allocation of optimum heat conductivity. An analysis was conducted of the impact of such factors as the internal irreversibility and heat transfer laws, etc on the characteristics of heat engine configuration optimization. It has been found that the conclusions given in some now available literature pertain to a special case of the relation obtained by the authors. The conclusion reached herein can serve as a theoretical guide for the optimized design of heat engines.