Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13031
Title: Evaluation of alternative arrangements of a heat pump system for plume abatement in a large-scale chiller plant in a subtropical region
Authors: Wang, J
Wang, S 
Xu, X
Xiao, F 
Keywords: Energy efficiency
Heat pump
Hybrid cooling tower
Plume abatement
Plume potential
Issue Date: 2009
Publisher: Elsevier
Source: Energy and buildings, 2009, v. 41, no. 6, p. 596-606 How to cite?
Journal: Energy and buildings 
Abstract: Heat pumps could be used to produce hot water for hybrid cooling towers for preventing the occurrence of plume in subtropical regions. The evaporative side of the heat pump system could be arranged either at the inlet side or at the outlet side of these cooling towers for cooling down the cooling water temperature. Alternatively, the evaporative side of the heat pump system could also be arranged at the evaporative side of chillers to reduce return chilled water temperature and therefore to reduce the cooling load of chillers. This study presents the evaluation of the impacts of these three arrangements of the heat pump system on the plume control performance and the energy performance in a large-scale chiller plant in Hong Kong. The performance prediction and evaluation of the chiller plant and the plume abatement system were conducted on a dynamic simulation platform. The results show that these three arrangements have almost the same plume control performance with sufficient plume control capability. The results also show that the arrangement of the evaporative side of the heat pump system for cooling down return chilled water temperature has much better performance that the other two arrangements for improving the overall energy efficiency.
URI: http://hdl.handle.net/10397/13031
ISSN: 0378-7788
EISSN: 1872-6178
DOI: 10.1016/j.enbuild.2008.12.001
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