燃气热泵制冷性能试验及余热利用分析

doi:10.11949/j.issn.0438-1157.20160763

化工学报 ›› 2017, Vol. 68 ›› Issue (1): 50-56.DOI: 10.11949/j.issn.0438-1157.20160763

燃气热泵制冷性能试验及余热利用分析

刘焕卫

烟台大学海洋学院, 山东烟台 264005

收稿日期:2016-06-02 修回日期:2016-07-26 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: 刘焕卫
基金资助:
山东省自然科学基金项目（ZR2015EL033，ZR2014EL029）。

Cooling performances of gas engine heat pump system and analysis of waste heat utilization

LIU Huanwei

School of Ocean, Yantai University, Yantai 264005, Shandong, China

Received:2016-06-02 Revised:2016-07-26 Online:2017-01-05 Published:2017-01-05
Contact: 10.11949/j.issn.0438-1157.20160763
Supported by:
supported by the Natural Science Foundation of Shandong Province (ZR2015EL033, ZR2014EL029).

摘要/Abstract

摘要：

为进一步提高能源利用率和提升低品位余热的品质，实现能量梯级利用，针对燃气机热泵系统开展了制冷性能实验及余热驱动的有机朗肯循环理论仿真研究。结果表明：燃气机热泵系统制冷量、发动机余热以及发动机一次能耗均随燃气发动机转速升高而增大；性能系数（COP）及一次能源利用率（PER）随蒸发器进水温度的升高而增大，但随发动机转速升高而降低。COP和PER分别高于6.0和1.1。在蒸发温度60~86℃范围内，以R245fa作为有机工质的有机朗肯循环热力学第一定律热力效率为7.39%~10.95%，热力学第二定律（火用）效率为42.65%~52.25%。

关键词: 燃气机热泵, 有机朗肯循环, 余热回收, 热力学, 性能试验, 计算机模拟

Abstract:

In order to improve the energy efficiency, convert the low-grade waste heat into the high-grade electricity and achieve the purpose of energy cascade utilization, the experiments on cooling performance of gas engine heat pump system(GHEP) and theoretical simulation of organic Rankine cycle(ORC) were investigated.The results showed that the cooling capacity, gas engine waste heat and gas engine energy consumption were increased with the increasing of gas engine speed, the coefficient of performance(COP) and primary energy ratio(PER) were increased with the increasing of evaporator water inlet temperature, but decreased with the increasing of gas engine speed.On the other hand, the energy and exergy of the first and the second laws of thermodynamics with R245fa as working fluid were 7.39%-10.95% and 42.65%-52.25%, respectively in the range of evaporating temperature 60-86℃.

Key words: gas engine heat pump, organic Rankine cycle, waste heat recovery, thermodynamics, performance testing, computer simulation

中图分类号:

TK11

刘焕卫. 燃气热泵制冷性能试验及余热利用分析[J]. 化工学报, 2017, 68(1): 50-56.

LIU Huanwei. Cooling performances of gas engine heat pump system and analysis of waste heat utilization[J]. CIESC Journal, 2017, 68(1): 50-56.

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燃气热泵制冷性能试验及余热利用分析

Cooling performances of gas engine heat pump system and analysis of waste heat utilization

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