Why is evaporative cooling less effective in humid tropical or coastal regions?
Answer
Humidity drastically reduces the rate of water evaporation
Evaporative cooling relies entirely on the principle of latent heat of vaporization, where heat is absorbed as water transitions from a liquid to a vapor. This process functions efficiently in dry climates where the air is capable of absorbing more moisture. However, in highly humid or tropical environments, the air is already saturated, which prevents the rapid evaporation of water. As a result, the cooling effect is severely diminished, making the technology less reliable for preserving perishable goods.
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