Comparison assessment for the effect of porous media and phase change material on the performance of photovoltaic solar chimney

Summary

Experiments on a photovoltaic-integrated solar chimney compared configurations with and without asphalt as a phase change material and a gravel bed as porous media. Adding either material kept the PV panels cooler and raised electrical efficiency to about 13%, while the chimneys without these materials delivered faster collector outflow and higher overall thermal efficiency around noon.

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