|Table of Contents|

Experimental Study on Heating Performances of Hybrid Singledouble Stage Cascade Airsource Heat Pump Unit

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年06期
Page:
0-
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Title:
Experimental Study on Heating Performances of Hybrid Singledouble Stage Cascade Airsource Heat Pump Unit
Author(s):
YU Yan shun 1HE Xue qiang 1JIANG Hui min 2QIAN Pu hua 1
1.School of Energy and Power Engineering,NUST,Nanjing 210094,China;〖HJ*2〗 2.Jirong Airconditioning Co.,Ltd.,Jieyang 522000,China
Keywords:
airsource heat pumpshybrid singledouble stage cascadeheating performancesswitch
PACS:
TU832.1
DOI:
-
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.

References:

[1]马最良.替代寒冷地区传统供暖的新型热泵供暖方式的探讨[J].流体机械,2002,30(增刊):35-37. Ma Zuiliang.Discussion of a new heat pump heating system for substituting the conventional heating system for cold regions[J].Fluid Machinery,2002,30(s):35-37. 
[2]马最良,姚杨,姜益强.双级耦合热泵供暖的理论与实践[J].流体机械,2005,33(9):30-35. Ma Zuiliang,Yao Yang,Jiang Yiqiang.Theory and practice of double stage coupling heat pump[J].Fluid Machinery,2005,33(9):30-35.
[3]马最良,姚杨,喻银平.双级耦合热泵系统在我国三北地区应用的预测分析[J].暖通空调,2005,35(1):6-10. Ma Zuiliang,Yao Yang,Yu Yinping.Predictive analysis of applying double stage coupling heat pump systems in north areas of China[J].Heating Ventilating and Air Conditioning,2005,35(1):6-10. 
[4]Heo J,Jeong M W,Kim Y.Effects of flash tank vapor injection on the heating performance of an inverterdriven heat pump for cold regions[J].International Journal of Refrigeration,2010,33(4):848-855.
[5]马国远,彦启森.涡旋压缩机经济器系统的实验研究[J].制冷学报,2002,33(1):27-31. Ma Guoyuan,Yan Qisen.Experimental research on scroll compressor with economizer for heat pump[J].Journal of Refrigeration,2002,33(1):27-31. 
[6]Ma G Y,Chai Q H,Jiang Y.Experimental investigation of airsource heat pump for cold regions[J].Int J of Refrigeration,2003,26(1):12-18. 
[7]Ma G Y,Li X G.Exergetic optimization of a key design parameter in heat pump systems with economizer coupled with scroll compressor[J].Energy Conversion and Management,2007,48(4):1150-1159. 
[8]Ma G Y,Chai Q H.Characteristics of an improved heatpump cycle for cold regions[J].Applied Energy,2004,77(3):235-247. 
[9]Ma G Y,Zhao H X.Experimental study of a heat pump system with flashtank coupled with scroll compressor[J].Energy and Buildings,2008,40(5):697-701.
[10]余延顺,张少凡,马娟,等.单-双级混合复叠热泵空调机组[P].中国:200810024893.8,2009-10-07.
[11]张小松.制冷技术与装置设计[M].重庆:重庆大学出版社,2008.
[12]陆耀庆.暖通空调设计指南[M].北京:中国建筑工业出版社,1996.

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Last Update: 2012-12-29