For AC applications, though, water is not the perfect heat storage medium. The efficiency would be better if the freezing point was higher. But then again, I do not know of any material with melting point at +10 celsius, heat capacity close to water and yet, would be having a reasonable cost compared to water.
https://www.ice-energy.com/
For AC applications, though, water is not the perfect heat storage medium. The efficiency would be better if the freezing point was higher. But then again, I do not know of any material with melting point at +10 celsius, heat capacity close to water and yet, would be having a reasonable cost compared to water.