CO2 Transcritical Cycle for Ground Source Heat Pump

Author

Wang, Jinggang ; Kang, Ligai ; Liu, Jie

Author_Institution

Hebei Univ. of Eng., Handan, China

Volume

2

fYear

2009

fDate

March 31 2009-April 2 2009

Firstpage

213

Lastpage

217

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Engineering, 2009 WRI World Congress on

Conference_Location

Los Angeles, CA

Print_ISBN

978-0-7695-3507-4

Type

conf

DOI

10.1109/CSIE.2009.235

Filename

5171330