Scientists from Benha University in Egypt have confirmed the effectiveness of using water and a mixture of aluminum oxide and calcium chloride hexahydrate to cool PV modules. According to the research, optimal performance was observed with a solution of 75% water.
The research findings are presented in the paper Performance enhancement of the photovoltaic cells using Al2O3/PCM mixture and/or water cooling-techniques, published in Renewable Energy and on the ScienceDirect website.