TY - JOUR T1 - Simulation of Photovoltaic/Thermal (PV/T) Systems with Natural Air Flow Operation TT - شبیه سازی سیستم های فتوولتاییک / حرارتی در حالت جابجایی آزاد JF - NECjournals JO - NECjournals VL - 12 IS - 3 UR - http://necjournals.ir/article-1-60-en.html Y1 - 2009 SP - 67 EP - 79 KW - Natural Convection KW - Simulation KW - Photovoltaic KW - Photovoltaic/Thermal N2 - This paper discusses the simulation of the Photovoltaic/Thermal (PV/T) air systems with natural air flow operation for both glazed and unglazed types. Comparisons are made between the theoretical and experimental results and good agreement between these two values are obtained. Additionally, the influence of the glass cover on the different system parameters has been evaluated. Results show that setting glass cover on photovoltaic panels leads to an increase in thermal efficiency and decrease in electrical efficiency of these systems. M3 ER -