If the make-up water temperature is different from the pool operating temperature, there will be a heat loss, given by qmuw mevp Cp (tmuw tw) (5.27)
where qmuw = make-up water heat loss (MJ/m2-d). mevp = daily evaporation rate (kg/m2-d). tmuw = temperature of make-up water (°C). cp = specific heat of water (J/kg-°C).
The daily evaporation rate is given by
hîb where hfg = latent heat of vaporization of water (MJ/kg).
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Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.