Title :
CO2 Transcritical Cycle for Ground Source Heat Pump
Author :
Wang, Jinggang ; Kang, Ligai ; Liu, Jie
Author_Institution :
Hebei Univ. of Eng., Handan, China
fDate :
March 31 2009-April 2 2009
Abstract :
This paper gave a schematic of the CO2 transcritical cycle for ground source heat pump system and compared it with the cycles of R22 and R134a. The volumetric efficiency and isentropic efficiency is also taken into consideration in this comparison. The results indicated that CO2 ground source heat pump system is equivalent to the conventional refrigerants cycles in coefficient of performance in high temperature heat sink. The paper analyzed the operating characteristics of CO2 ground source heat pump system when both the temperature and the flow of water are changed and also discussed the capacity control methods of the CO2 ground source heat pump system.
Keywords :
flow; heat pumps; heat sinks; air-conditioning systems; capacity control methods; carbondioxide transcritical cycle; coefficient-of performance; ground source heat pump; high temperature heat sink; isentropic efficiency; volumetric efficiency; water flow; Carbon dioxide; Circuits; Cooling; Heat engines; Heat pumps; Heat sinks; Land surface temperature; Refrigerants; Water heating; Water resources;
Conference_Titel :
Computer Science and Information Engineering, 2009 WRI World Congress on
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-0-7695-3507-4
DOI :
10.1109/CSIE.2009.235
