Heating experimental study of solar-air source heat pump system in severe cold areas

被引：0
|
作者：
Jin G. [1 ]
Chen Z. [1 ]
Guo S. [1 ]
Wang J. [1 ]
Li Y. [2 ]
机构：
[1] School of Environment and Energy, Inner Mongolia University of Science and Technology, Baotou
[2] School of Environmental Science and Engineering, North China Electric Power University, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 08期
关键词：
Air source heat pump; Coefficient of performance (COP); Experimental study; Heating; Severe cold areas; Solar energy;
D O I：
10.19912/j.0254-0096.tynxb.2019-0696
中图分类号：
学科分类号：
摘要：
An experimental heating facility of solar-air source heat pump system was constructed in a typical severe cold area. The heating characteristics using independent air source heat pump or heat storage water tank with air source heat pump hybrid heating was studied respectively. The results show that when the air source heat pump is used for heating alone, the system COPs reaches the lowest when the outdoor temperature is lower than -12℃, which fails to meet the demand of indoor heating. When the outdoor temperature is between -12℃ and -7℃, the indoor heating demand can be met, but the system COPs is only between 1.10 and 1.44, and the energy saving effect is not obvious. When the outdoor temperature is greater than -7℃, the average indoor temperature can reach above 20℃ with quite good systematic energy saving effect. The addition of the heat storage water tank affects the stability of the unit at the initial operating stage, but it can rapidly lift the indoor temperature and improve the heating performance of the system. Under the same operating conditions, the average indoor temperature during the hybrid heating period under the hybrid heating mode is 24.61℃ with the system COPs of 2.01, which is 6.90% and 21.08% higher than that of the alternating heating mode of heat storage water tank and air source heat pump and that of separate air source heat pump respectively, and its heating effect is the best. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：251 / 257
页数：6
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