Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17814
Title: Feasibility study on novel hybrid ground coupled heat pump system with nocturnal cooling radiator for cooling load dominated buildings
Authors: Man, Y
Yang, H 
Spitler, JD
Fang, Z
Keywords: Cooling load dominated buildings
Ground heat exchanger
Hybrid ground coupled heat pump systems
Nocturnal cooling radiator
Supplemental heat rejecter
Issue Date: 2011
Publisher: Pergamon Press
Source: Applied energy, 2011, v. 88, no. 11, p. 4160-4171 How to cite?
Journal: Applied energy 
Abstract: When the ground coupled heat pump (GCHP) system is utilized for air conditioning in cooling load dominated buildings, the heat rejected into ground will accumulate around the ground heat exchangers (GHE) and results in system performance degradation. A novel hybrid ground coupled heat pump (HGCHP) system with nocturnal cooling radiator (NCR) works as supplemental heat rejecter is proposed in this paper to resolve this problem. The practical analytical model of NCR and novel HGCHP system are established. The computer program based on established model is developed to simulate the system operation performance. The novel HGCHP system is designed and simulated for a sample building located in Hong Kong, and a simple life cycle cost comparisons are carried out between this system and conventional GCHP system. The results indicate that it is feasible to use NCR serves as supplemental heat rejecter of the novel HGCHP system for cooling load dominated buildings even those located in humid subtropical climate areas. This novel HGCHP system provides a new valuable choice for air conditioning in cooling load dominated buildings, and it is especially suitable for buildings with limited surface land areas.
URI: http://hdl.handle.net/10397/17814
ISSN: 0306-2619
EISSN: 1872-9118
DOI: 10.1016/j.apenergy.2011.04.035
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