Abstract
Abstract In order to assess the comprehensive performance of photovoltaic thermal system based on micro heat pipe array (MHPA-PV/T) systems in different regions of China, the mathematical model of the system was built. The reliability of the model was verified through the experimental data of four typical seasons, and the simulated results agreed well with the experiment. Then, this model was used to predict PV/T system performance in five typical cities of different regions in China. For the MHPA-PV/T system of two 195W peak power modules and the 100L capacity heat collecting water tank, model prediction results shows that the average thermal efficiency in Beijing, Changchun, Nanjing, Haikou and Xining were respectively 28.5%,27.8%,27.3%,31.5% and 28.3%, average electrical efficiency were 13.6%,13.9%,13.8%, 13.3% and14.0%, the total efficiency of solar energy utilization were respectively 42.1%,41.7%,41.1%,44.8% and 42.3%, the total generation capacity were 415.7kW·h,446.9kW·h,372.8kW·h,325.7kW·h and 471.8kW·h, the ratio of solar heat supply and demand were respectively89.6%,.79.9%,84.0%,105.8% and 80.5%.
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