高炉余能余热驱动的内可逆闭式布雷顿热电冷联产装置火用经济性能分析  

Exergoeconomic performance analysis for an endoreversible closed Brayton cycle combined cooling,heating and power generation plant driven by residual energy and heat of blast furnace

作　　者：冯辉君[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033

出　　处：《节能》2013年第2期18-24,2,共7页Energy Conservation

基　　金：国家重点基础研究发展计划(973)项目(项目编号:2012CB720405);国家自然科学基金(项目编号:10905093)

摘　　要：用有限时间热力学理论研究恒温热源条件下由一个内可逆闭式布雷顿热机循环和一个内可逆四热源吸收式制冷循环组成的高炉余能余热驱动的热电冷联产装置的火用经济性能,导出热电冷联产装置的利润率和火用效率与压气机压比的关系。利用数值计算,分析热电比和吸收式制冷循环总放热量在吸收器和冷凝器之间的分配率对利润率与火用效率关系的影响,并研究联产装置各种参数对最大利润率及相应火用效率特性的影响。The exergoeconomic performance for an endoreversible closed Brayton cycle combined cooling,heating and power(CCHP) generation plant with one endoreversible four-heat-reservoir absorption refrigeration cycle driven by residual energy and heat of blast furnace is investigated by finite time thermodynamics.The basic relation between the profit rate and compressor pressure ratio as well as the relation between the exergy efficiency and compressor pressure ratio are derived.The effects of the ratio of power to heat demanded by the heat consumer and the distribution of the total heat rejection quantity between the condenser and the absorber on the profit rate vs.exergy efficiency characteristic are analyzed by numerical examples.Furthermore,the effects of design parameters on the maximum profit rate and the corresponding exergy efficiency are also discussed.

关 键 词：有限时间热力学 布雷顿循环 四热源吸收式制冷循环 热电冷联产装置 [火用]经济性能 利润率 [火用]效率 

分 类 号：TK12[动力工程及工程热物理—工程热物理]