Experimental study on energy storage air source heat pump system with quick heating and defrosting

被引：0
|
作者：
Zhao H. [1 ,2 ]
Qiu G. [1 ]
Yu S. [1 ]
机构：
[1] School of Energy and Power Engineering, Northeast Electric Power University, Jilin
[2] Qingdao Economic & Technology Development Zone Haier Water-Heater Co., Ltd., Qingdao
来源：
Qiu, Guodong (qgd518@163.com) | 1600年 / Science Press卷 / 42期
关键词：
Air source heat pumps; Defrosting; Energy storage; Heating;
D O I：
10.19912/j.0254-0096.tynxb.2018-1095
中图分类号：
学科分类号：
摘要：
This paper presented an energy storage air source heat pump system which can heat and defrost quickly. The experimental test was carried out in the outdoor conditions of -0.7℃ and 95% relative humidity. The results show that in the process of frosting, the heat accumulator can effectively prevent the air temperature falling of the indoor unit. In the process of defrosting, the compressor of the new system has great output and high efficiency. When using the new system, defrosting duration was shortened by 68%, and defrosting energy consumption reduced by 51.4%. The indoor air temperature is 28℃ at the end of the defrosting, which is 22℃ higher than that of the conventional system, bringing about no cold feeling during the defrosting. The effect of the quick heating after turning on the unit is very considerable, the heating amount of 6 minutes for the new system is about equivalent to that of 10 minutes for conventional system. Therefore, the new system proposed greatly improves the heating effect of air source heat pumps. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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收藏
页码：184 / 190
页数：6
相关论文
共 12 条
  • [1] HU W J., Study on the dynamic characteristic of a novel PCM based defrosting for air source heat pump, (2014)
  • [2] BAI W., Discussion on the defrosting methods of the household air-conditioner, China appliance technology, 4, pp. 84-87, (2015)
  • [3] BAI W., Study on the model of the non-stop defrosting of the room air conditioner, Proceedings of 2016 China Household Appliance Technology Conference, (2016)
  • [4] SHI W X, LI X T, SHAO S Q., Experimental research on hot vapor bypass defrosting method, Journal of refrigeration, 2, pp. 29-35, (2000)
  • [5] HUANG D, YUAN X L., Comparison of dynamic characteristics between the hot-gas bypass defrosting method and reverse-cycle defrosting method on an air-to-water heat pump, Journal of Xi'an jiaotong university, 40, 5, pp. 539-543, (2006)
  • [6] TANG J C., Study of thermodynamics and heat transfer on frost prevention and retardation of air source heat pump, (2016)
  • [7] LIU X L, LI Y A, LI J Z, Et al., Theoretical and experimental study on the defrosting system and incessant heating by storing energy of water storage, Journal of Hunan University(natural sciences), 36, pp. 124-128, (2009)
  • [8] ZENG J, LI N P, CHEN J L, Et al., Experimental studies of the sensible heat storage air source heat pump for floor radiant heating, Building science, 32, 6, pp. 33-38, (2016)
  • [9] HAN Z T., Experimental study on characteristics of conventional defrosting and energy storage defrosting of air source heat pump, (2007)
  • [10] DONG J K., Novel methods of retarding frost and defrosting for an air source heat pump, (2012)
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