多热源联合热泵的性能模拟  

Performance Simulation of Combined Heat Pump Driven by Multi-Heat Sources

作　　者：杨昭[1] 马常胜[1] 陈贺[1] Yang Zhao;Ma Changsheng;Chen He(School of Mechanical Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学机械工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2017年第2期142-146,共5页Journal of Tianjin University：Science and Technology

基　　金：国家自然科学基金资助项目(51076111;51276124);教育部高等学校博士学科点专项科研基金资助项目(20130032130006)~~

摘　　要：基于燃气内燃机热泵较高的烟气余热利用价值,提出了一种利用内燃机烟气与太阳能联合驱动的氨水吸收式热泵循环,建立了传统的燃气内燃机压缩式热泵与吸收式热泵的联合供能系统模型,并通过模拟计算分析了系统性能系数的影响,并与传统燃气热泵的热力性能进行了对比.结果表明,该系统在不增加能耗的基础上,一次能源利用率从原来的1.49提高到1.98,输出热量从86,k W增加到115,k W,同时烟气余热回收率从0.20提高到0.29.Based on the comparatively high heat utilization of waste gas by gas engine-driven heat pump(GEHP),a new ammonia absorption heat pump cycle jointly driven by high temperature flue gas and solar energy was put forward,and then a joint energy supply system model of traditional gas engine compression heat pump and absorption heat pump was established.By calculating the parameters of the system,the impact of different operating temperatureson the coefficient of performance of the system was discussed,and its thermal performance was compared with that of a conventional gas heat pump.The results show that without increasing the energy consumption,the primary energy ratio(PER)can be improved from 1.49 to 1.98,heat output is increased from the original 86,kW to 115,kW,and the heat recovery rate of waste gas is increased from 0.20 to 0.29.

关 键 词：燃气内燃机热泵 烟气余热利用 吸收式系统 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]