Experimental Study on Thermal Performance of Transcritical CO2 Air Source Heat Pump for Space Heating

被引：10

作者：

Lu, Fenping ^{[1
]}

Liu, Shengchun ^{[1
]}

Dai, Baomin ^{[1
]}

Zhong, Zhifeng ^{[2
]}

Li, Hailong ^{[1
,3
]}

Sun, Zhili ^{[1
]}

机构：

[1] Tianjin Univ Commerce, Tianjin Key Lab Refrigerat Technol, Tianjin 300134, Peoples R China

[2] Minist Ecol & Environm, Foreign Econ Cooperat Off, Beijing 100035, Peoples R China

[3] Malardalen Univ, Sch Sustainable Dev Soc & Technol, Future Energy Ctr, SE-72123 Vasteras, Sweden

来源：

INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS | 2019年 / 158卷

基金：

中国国家自然科学基金;

关键词：

carbon dioxide; transcritical cycle; air source; heat pump; space heating; WATER-HEATER; CARBON-DIOXIDE; SYSTEM; PRESSURE;

D O I：

10.1016/j.egypro.2019.01.532

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Employing transcritical CO2 heat pump system for space heating is an effective way to solve the issue of air pollution during the heating season in China. Thus, an experimental setup is developed to study the thermal performance of the transcritical CO2 air source heat pump system used for space heating. The test results show that a maximum coefficient of performance (COP) of 2.88 is obtained at the optimum discharge pressure and the ambient temperature of 10 degrees C. The optimal high pressure is nearly a constant with the value of about 8.5 NfPa for the ambient temperature in the range of-15-10 degrees C. The system COP increases with the ambient temperature increasing, and the outlet temperature of the gas cooler is a dominant influencing factor on the thermal performance of the heat pump system. Little difference can be found between the gas cooler outlet temperatures with the variation in ambient temperatures. (C) 2019 The Authors. Published by Elsevier Ltd.

引用

页码：5913 / 5919

页数：7

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