耦合中央空调的光伏幕墙强制风冷研究

Study of forced air cooling of photovoltaic curtain walls with coupled central air conditioning

光伏组件的光电转换效率随工作温度的升高而降低,为解决这一问题,提出一种耦合中央空调的光伏幕墙系统,利用空调排出的冷空气对光伏幕墙进行强制风冷,以达到提高光电转换效率的目的。基于Fluent软件建立相关模型,对比自然风冷与强制风冷的冷却效果。结果表明,耦合系统具备更良好的冷却散热效果,冷却后平均温度比自然风冷模式下低4.053℃,光电转化效率高约0.25%。

The photoelectric conversion efficiency of PV modules decreases with the increase of working temperature.To solve this problem,a PV curtain wall system coupled with central air-conditioning is proposed,which uses the cold air discharged from air-conditioning to force air-cooling on the PV curtain wall for the purpose of improving the photoelectric conversion efficiency.Based on Fluent software,a model was established to compare the cooling effect of natural air cooling with that of forced air cooling.The results show that the coupled system has a better cooling and heat dissipation effect,and the average temperature after cooling is 4.053℃lower than that of the natural air-cooling mode,and the photovoltaic conversion efficiency is about 0.25%higher.