燃气机热泵供热性能规律的理论和实验研究

doi:10.11949/j.issn.0438-1157.20150391

化工学报 ›› 2015, Vol. 66 ›› Issue (10): 3834-3840.DOI: 10.11949/j.issn.0438-1157.20150391

燃气机热泵供热性能规律的理论和实验研究

王明涛^1,2, 刘焕卫², 张百浩²

1 鲁东大学能源与动力工程系, 山东烟台 264025;
2 天津大学机械工程学院, 天津 300072

收稿日期:2015-03-27 修回日期:2015-05-17 出版日期:2015-10-05 发布日期:2015-10-05
通讯作者: 王明涛
基金资助:
山东省自然科学基金项目(ZR2014EEP026);鲁东大学科研基金项目(27860301)。

Theoretical and experimental study on heating performance of gas engine-driven heat pump

WANG Mingtao^1,2, LIU Huanwei², ZHANG Baihao²

1 School of Energy and Power Engineering, Ludong University, Yantai 264025, Shandong, China;
2 School of Mechanical Engineering, Tianjin University, Tianjin 300072, China

Received:2015-03-27 Revised:2015-05-17 Online:2015-10-05 Published:2015-10-05
Supported by:
supported by the Natural Science Foundation of Shandong Province (ZR2014EEP026) and the Scientific Research Foundation of Ludong University (27860301).

摘要/Abstract

摘要：

燃气机热泵(gas engine-driven heat pump)是一种节能环保的供热系统。为了研究燃气机热泵的能源利用效率,利用构建的燃气机热泵实验台,通过理论分析和实验测试研究了燃气机转速、冷凝器进水流量、冷凝器进水温度对系统性能[供热总量、制热性能系数(COP)以及一次能源利用率(PER)]的影响规律。结果表明:燃气机热泵系统供热量随着冷凝器进水流量、燃气机转速的增加而增加,随着冷凝器进水温度的提高而减少。COP和PER随着燃气机转速和进水温度的升高而减少,进水流量对系统性能系数的影响较小。回收的余热占燃气机热泵系统总供热量的40%左右,在考虑余热回收的情况下,燃气机热泵的一次能源利用率在1.15~1.47之间。

关键词: 天然气, 热力学, 燃气机热泵, 压缩机, 余热回收, 一次能源利用率, 冷凝器进水温度

Abstract:

The gas engine-driven heat pump (GEHP) system is an efficient energy saving and environment-friendly heating system which consumes natural gas as fuel in a gas engine. The present work aimed at evaluating the performance of a gas engine-driven heat pump for heating. In order to achieve this objective, a test facility was developed and experiments were performed over a wide range of engine rotary speed (1300—1900 r·min^-1). The relationships of engine rotary speed, condenser water inlet temperature, condenser water flow and system performance [heating capacity, system coefficient of performance (COP) and primary energy ratio (PER)] were studied based on theoretical analysis and experimental data. The results showed that the heating capacity of GEHP increased with increasing engine rotary speed and condenser water flow rate, but decreased with the increase of condenser water inlet temperature. The COP and PER of the GEHP decreased with increasing engine rotary speed and condenser water inlet temperature. The effect of the engine rotary speed and condenser water inlet temperature on the system performance was more significant than that of condenser water flow rate. The waste heat recovered from the gas engine accounted for about 40% of the total heating capacity, and the PER of the GEHP was between 1.15—1.47 under experimental condition.

Key words: natural gas, thermodynamics, gas engine-driven heat pump, compressor, waste heat recovery, primary energy ratio, condenser water inlet temperature

中图分类号:

TK123

王明涛, 刘焕卫, 张百浩. 燃气机热泵供热性能规律的理论和实验研究[J]. 化工学报, 2015, 66(10): 3834-3840.

WANG Mingtao, LIU Huanwei, ZHANG Baihao. Theoretical and experimental study on heating performance of gas engine-driven heat pump[J]. CIESC Journal, 2015, 66(10): 3834-3840.

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燃气机热泵供热性能规律的理论和实验研究

Theoretical and experimental study on heating performance of gas engine-driven heat pump

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