Performance Investigation of a Hybrid Photovoltaic/Thermal Water Heater in Tibet for Residential Buildings
A theoretical analysis of a hybrid photovoltaic/thermal (PV/T) water heater is presented in this paper. The PV/T collector is made of vacuum tube-PV sandwich and the heat extraction from PV panel by the water passing through u-shape cooper tube of the collector results in the reduction of the PV cells working temperature. This also improves the electrical and thermal efficiencies of the PV panel. Based on energy balance of each components of the vacuum tube-PV sandwich, mathematical models are developed to evaluate the energy performance of the PV/T water heater based on the weather data on January 14th at Tibet, China. The simulation results indicate that the hybrid PV/T water heater has a better energy performance than traditional flat plate PV/T solar collectors and the daily average thermal efficiency and electrical efficiency are 0.731 and 0.138 for 120 L water tank, respectively. The maximum tank water temperature could reach 62.96℃ for 90 L water tank.
PV/T water heater thermal efficiency electrical efficiency
Yaodong Lan Hongbing Chen Ping Wei
Department of Civil Engineering Hebei Engineering and Technical College Cangzhou, China Scholl of Environment and Energy Engineering Beijing University of Civil Engineering and Architectur Department of Civil Engineering Beijing Polytechnic College Beijing, China
国际会议
三峡
英文
882-885
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）