燃气机热泵余热利用理论分析  

Recovery of Waste Heat of Gas Engine Heat Pump

作　　者：王明涛[1] 杨昭[1] 陈轶光[1] 

机构地区：[1]天津大学机械工程学院,天津300072

出　　处：《农业机械学报》2011年第1期35-38,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家高技术研究发展计划(863计划)资助项目(2007AA05Z223);国家自然科学基金资助项目(51076112);教育部博士学科点专项科研基金资助项目(200800560041)

摘　　要：对燃气机热泵余热利用方式进行了理论分析,从能量平衡角度分析了除霜的可行性,计算结果表明：除霜热量占余热回收总量的比值为6.5%~9.5%;在不同的除霜周内,制冷剂气化热量占回收余热总量的比值变化较大,最大不超过45%,从能量角度利用余热除霜是可行的;燃气机热泵的Cop可以提高30%,一次能源利用率在1.3~1.8,可见利用余热供热对提高燃气机热泵的性能系数具有重要的意义。The methods of waste heat recovery from gas engine heat pump（GEHP） were analyzed theoretically.From the aspect of energy balance,the feasibility of the waste heat defrosting method was discussed,the results showed that the waste heat for defrosting was small,accounting for 6.5%~9.5% of the total waste heat,and the waste heat for refrigerant was less than 45% of the total waste heat,so the waste heat defrosting method was feasible.The waste heat can significantly improve the Cop and primary energy utilization rate of GEHP.

关 键 词：燃气机热泵 余热利用 除霜 一次能源利用率 

分 类 号：TK115[动力工程及工程热物理—热能工程]