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Old 08-12-2004, 06:46 AM
tici tici is offline
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Join Date: Dec 2004
Location: Zurich - Switzerland
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Cp of water is 4.182 kJ/kg*K
Evaporating heat of water is 2'256 kJ/kg

Difference between a hot day (100F) to cooled water (40F) = 33K = 140 kJ/kg

94% of the cooling energy is because of evaporation
6% of the cooling is because of the cool water

does it really matter to use cold water?
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