Qα△(T^n)时两源不可逆热机的基本优化关系

THE BASIC FAVOURABLE RELATION OF IRREVERSIBLE HEAT ENGINE BETWEEN TWO HEAT SOURCES FOR CASE OF QαΔ(T^n)

本文在给定内不可逆性的基础上,研究了Qα△(T^n)时,两种循环工况下不可逆卡诺循环的输出功率与效率间的基本优化关系。结果表明与内可逆卡诺循环有相同吸、放热时间的不可逆卡诺循环的优化关系最佳;讨论说明这一优化关系是线性、非线性传热,内可逆与内不可逆多种情况满足的普遍关系。

This paper,On the basis of defining the endo-irreversibility,discusses the basic favourable relation between efficiency and output power of irreversible Carnot cycle under two workings of cycle for case of Qa△(T^n).The result explained that the favourable relation of irreversible Carnot cycle which has as time of absorption heat and rejection heat as endo-reversible Carnot cycle is optimum.The discussion reveals that this relation is universal satisfying basic favourable formula- tion of Carnot cycle under the condition of linear and non-linear heat transfer,endo-reversibie and endo-irreversible and so forth.