两级烟气废热溴化锂制冷机热能利用经济性分析  

ANALYSIS OF ENERGY UTILIZING EFFICIENCY IN A TWO-STAGE LiBr-H_(2)O ABSORPTION REFRIGERATOR DRIVEN BY WASTE HEAT OF FLUE GAS

作　　者：金苏敏[1] 陈立云[1] 朱永长[1] 

机构地区：[1]南京工业大学能源学院,江苏南京210009

出　　处：《工程热物理学报》2010年第1期19-23,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50676041)

摘　　要：废热溴化锂制冷机可以直接利用烟气废热或化学反应热来驱动进行制冷,因此废热回收的综合利用率比较高。论文对烟气废热驱动废热溴化锂制冷机的热能利用的经济性进行了分析,在烟气废热驱动溴化锂制冷机中,溴化锂制冷机的COP仅仅反映的是溴化锂制冷机本身的性能,不能作为衡量废热溴化锂制冷机废热制冷的效率高低和性能好坏的标准,因此本文采用废热利用率和废热制冷率对烟气废热溴化锂制冷机的废热制冷性能指标,废热制冷率与炯效率分析结果相一致,通过比较发现,二级烟气双效废热驱动废热溴化锂制冷机的废热制冷率最高,炯效率也最高。A LiBr-H_2O absorption refrigerator can be driven by waste heat of flue gas,chemical reaction to produce chiller water,so it has high efficiency of energy utilizing.The energy utilizing efficiency in a two-stage LiBr-H_2O refrigerator driven by waste heat of flue gas is investigated in this paper.COP of the LiBr-H_2O absorption refrigerator is estimated with the performance of the LiBr-H_2O absorption refrigerator only,but we cannot estimate the performance of refrigerator driven by waste heat of flue gas.The waste heat utilizing efficiency and the waste heat refrigeration efficiency are given in the paper to estimate the performance of LiBr-H_2O absorption refrigerator driven by waste heat of flue gas.The analysis result of waste heat refrigeration efficiency is the same as the result of exergy efficiency.Two-stage waste heat of flue gas double-effect LiBr-H_2O absorption refrigerator system have the highest waste heat refrigeration efficiency and exergy efficiency by comparing with other systems.

关 键 词：废热利用率 废热制冷率 㶲 

分 类 号：TK124[动力工程及工程热物理—工程热物理]