20 Sizing an Active Solar Collector for a Pool Available to Purchase

Solar collectors used to heat water have been improving steadily in solar energy conversion efficiency as the demand to go to greener energy sources increases. To be able to design a pool solar collector system, a good knowledge of year-around environmental conditions has to be gathered. Average daily incident solar radiation, average daily daytime and nighttime environment temperatures, and average daily daytime and nighttime relative humidity must be known.

Sizing an active (directly circulating the pool water) solar collector to heat a pool's water requires knowledge of the average solar insolation at the location of the collector, and the heat transfer efficiency of the solar collector.