摘要
以带有相变蓄热器的空气源热泵过冷蓄能除霜系统为研究对象,通过实验研究的方法,对供热过程中利用制冷剂过冷实现相变材料蓄能的特性进行了实验验证。研究结果表明:所研究的空气源热泵过冷蓄能除霜系统,一方面能很好地实现制冷剂过冷提高系统性能,另一方面可以实现相变材料相变蓄能为除霜提供能量。在开机1h后过冷蓄能模式对系统特性和室内环境的影响更小。
The system of air source heat pump defrosting using sub-cooling energy of refrigerant with phase changer material heat exchanger was studied. The characteristic of thermal energy storage using sub-cooling energy of refrig- erant in heating was experimentally researched. The results showed that not only sub-cooling the refrigerant and improving the system COP in heating, but also achieving phase change of phase change material and providing energy for defrosting. Starting thermal energy storage after heating one hour was better for system performance and indoor environment.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第9期1536-1540,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(50606007)
关键词
空气源热泵
制冷剂过冷
蓄能
相变材料
除霜
air source heat pump
sub-cooling of refrigerant
thermal energy storage
phase change material
defrosting
