南京理工大学学报（自然科学版）2012，Vol.36Issue(6)：1036-1041,6.
单-双级混合复叠空气源热泵机组制热性能实验研究
Experimental Study on Heating Performances of Hybrid Single-double Stage Cascade Air-source Heat Pump Unit
摘要
Abstract
In order to improve the adaptability, heating capacity and heating performances of air source heat pump(ASHP)units in low air temperature, a hybrid single-double stage cascade ASHP prototype is designed. The intrinsic operating parameters and heating performances of the prototype in different operating conditions and modes are tested in an enthalpy potential method laboratory. The results show that when the hot water supplying is 45℃ and the ambient temperature is -20℃, the coefficient of performance in heating (COPh) of the unit is above 2. 1, the heating capacity is 7. 61kW,the compression ratio is less than 4. 5 ,and the discharge temperature is below 80℃. With the optimization objective of the COPh, the ambient temperature with 0 ℃ is taken as the switch temperature for the modes of single-double stage cascade heating operation.关键词
空气源热泵/单-双级混合复叠/制热性能/切换Key words
air-source heat pumps/hybrid single-double stage cascade/heating performances/switchZ分类
建筑与水利引用本文复制引用
余延顺,何雪强,江辉民,钱普华..单-双级混合复叠空气源热泵机组制热性能实验研究[J].南京理工大学学报（自然科学版）,2012,36(6):1036-1041,6.基金项目
国家自然科学基金(50806034) （50806034）
南京理工大学"卓越计划-紫金之星"基金 （）
南京理工大学自主科研专项计划(2010ZYTS047) （2010ZYTS047）
