TY - JOUR
T1 - Potential use of photovoltaic-integrated solar heat pump system in Hong Kong
AU - Chow, T. T.
AU - Fong, K. F.
AU - Pei, G.
AU - Ji, J.
AU - He, M.
PY - 2010/6
Y1 - 2010/6
N2 - Most buildings in Hong Kong are served with electric/gas water heaters for hot water supply. With the elevated aspiration on the quality of life, an increase in hot water demand partly contributes to the escalating energy use of the city in the past decades. A photovoltaic-integrated solar heat pump (PV-SAHP) system, which can be seen as a scientific merge of the photovoltaic/thermal and solar assistant heat pump technology, is here proposed as a sustainable alternative. Numerical analysis has been carried out making use of a dynamic simulation model and the TMY weather data of Hong Kong. It was found that the proposed system with R-134a is able to achieve a yearly-average COP of 5.93 and PV output efficiency of 12.1%; the energy output is therefore considerably higher than the conventional heat pump plus PV "side-by-side" system. Within a year, the PV-SAHP system has better performance in summer time, when the monthly average COP could reach six or higher. Hence its application potential in Hong Kong is good. © 2010 Elsevier Ltd. All rights reserved.
AB - Most buildings in Hong Kong are served with electric/gas water heaters for hot water supply. With the elevated aspiration on the quality of life, an increase in hot water demand partly contributes to the escalating energy use of the city in the past decades. A photovoltaic-integrated solar heat pump (PV-SAHP) system, which can be seen as a scientific merge of the photovoltaic/thermal and solar assistant heat pump technology, is here proposed as a sustainable alternative. Numerical analysis has been carried out making use of a dynamic simulation model and the TMY weather data of Hong Kong. It was found that the proposed system with R-134a is able to achieve a yearly-average COP of 5.93 and PV output efficiency of 12.1%; the energy output is therefore considerably higher than the conventional heat pump plus PV "side-by-side" system. Within a year, the PV-SAHP system has better performance in summer time, when the monthly average COP could reach six or higher. Hence its application potential in Hong Kong is good. © 2010 Elsevier Ltd. All rights reserved.
KW - Heat pump
KW - Hybrid solar technology
KW - Photovoltaic
KW - Simulation model
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-77949263557&origin=recordpage
U2 - 10.1016/j.applthermaleng.2010.01.013
DO - 10.1016/j.applthermaleng.2010.01.013
M3 - RGC 21 - Publication in refereed journal
SN - 1359-4311
VL - 30
SP - 1066
EP - 1072
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
IS - 8-9
ER -
