TY - JOUR
T1 - Comparison study of the performance of two kinds of photovoltaic/thermal(PV/T) systems and a PV module at high ambient temperature
AU - Yuan, Weiqi
AU - Ji, Jie
AU - Li, Zhaomeng
AU - Zhou, Fan
AU - Ren, Xiao
AU - Zhao, Xudong
AU - Liu, Shuli
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/4/1
Y1 - 2018/4/1
N2 - The power output of a PV system decreases with the operating temperature rising especially in summer. Using the photovoltaic/thermal(PV/T) can help cooling down the operating temperature of the cells. However, there are few studies comparing the performance of different PV/T systems and the PV module at high ambient temperature. In this study, a series of experiments were conducted to compare the performance of the water-pipe-based PV/T, the PV/T with micro-channel heat pipe array(MHPA) and the conventional PV module at high ambient temperature. The results showed that the average cell temperature of the water-pipe-based PV/T, the PV/T with MHPA and the PV module rose in the morning and fell in the afternoon. The temperature of the three systems could be up to 70 °C, 90 °C and 100 °C respectively, while the electrical efficiency of the three systems decreased with the increment in the temperature of the PV cells and ranged from 11.2% to 10%, 9.6%–7.7% and 8.6 to 7.0% respectively. It means that both the water-pipe-based PV/T and the PV/T with MHPA could improve the performance of PV cells. However, in this study the water-pipe-based PV/T had better performance than the PV/T with MHPA.
AB - The power output of a PV system decreases with the operating temperature rising especially in summer. Using the photovoltaic/thermal(PV/T) can help cooling down the operating temperature of the cells. However, there are few studies comparing the performance of different PV/T systems and the PV module at high ambient temperature. In this study, a series of experiments were conducted to compare the performance of the water-pipe-based PV/T, the PV/T with micro-channel heat pipe array(MHPA) and the conventional PV module at high ambient temperature. The results showed that the average cell temperature of the water-pipe-based PV/T, the PV/T with MHPA and the PV module rose in the morning and fell in the afternoon. The temperature of the three systems could be up to 70 °C, 90 °C and 100 °C respectively, while the electrical efficiency of the three systems decreased with the increment in the temperature of the PV cells and ranged from 11.2% to 10%, 9.6%–7.7% and 8.6 to 7.0% respectively. It means that both the water-pipe-based PV/T and the PV/T with MHPA could improve the performance of PV cells. However, in this study the water-pipe-based PV/T had better performance than the PV/T with MHPA.
KW - High ambient temperature
KW - Micro heat pipe array
KW - PV/T
KW - Thermal and electrical efficiency
UR - http://www.scopus.com/inward/record.url?scp=85042656447&partnerID=8YFLogxK
U2 - 10.1016/j.energy.2018.01.121
DO - 10.1016/j.energy.2018.01.121
M3 - Article
AN - SCOPUS:85042656447
SN - 0360-5442
VL - 148
SP - 1153
EP - 1161
JO - Energy
JF - Energy
ER -
