不可逆变温热源斯特林热机的?生态学性能研究  

Study on the exergetic ecological performance of the irreversible heat source stirling heat engine

作　　者：云慧敏 王寿海 吴锋[1] YUN Hui-min;WANG Shou-hai;WU Feng

机构地区：[1]武汉工程大学光电信息与能源工程学院

出　　处：《节能》2019年第10期86-91,共6页Energy Conservation

基　　金：国家自然科学基金资助项目(项目编号：51176143)

摘　　要：基于[火用]的生态学目标函数,使用一种新的指标--[火用]生态指标对不可逆变温热源斯特林热机进行了分析。在热机高低温热源的热容均为有限的前提下,考虑斯特林热机的热阻、回热损失、内不可逆性以及热漏对其影响。研究了回热器的回热效率和高低温热源的热容的比值等参数对斯特林热机的功率、效率和?生态学指标的影响,并将结果与另一种生态目标函数的结果进行了比较,得到最佳功率输出功率和热效率。Exergy-based ecological objective function,a new indicator,exergetic ecological index,was used to analyze the irreversible heat source stirling heat engine. Under the premise that the heat capacity of the high and low temperature heat source of the heat engine is limited,consider the influence of thermal resistance,heat recovery loss,internal irreversibility and heat leakage of the Stirling heat engine. The effects of heat recovery efficiency of regenerator and heat capacity of high and low temperature heat source on the power,efficiency and exergetic ecological index of Stirling heat engine were studied in detail. The results are compared with the results of another ecological objective function,giving the optimal power output power and thermal efficiency.

关 键 词：斯特林热机 变温热源 有限时间热力学 [火用]生态指标 

分 类 号：TK123[动力工程及工程热物理—工程热物理]