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Why does a desert cooler cool better on a hot dry day?

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CBSE/Class 9/Science Tuition/Class IX-X Tuition

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Desert Cooler works because of the principle of "Evaporative Cooling" . The sprayed water removes the latent heat from the air inside the room and makes the air in the room colder. This works well in summer when the outside temperature is high and the moisture content is very low. It fails when the air... read more
Desert Cooler works because of the principle of "Evaporative Cooling" . The sprayed water removes the latent heat from the air inside the room and makes the air in the room colder. This works well in summer when the outside temperature is high and the moisture content is very low. It fails when the air outside is already laden with moisture as in rainy season. read less
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Teacher

Steam can produce more severe burns because the heat content is steam, especially superheated steam, can be much more than that in boiling water.
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Trainer

A desert cooler cools better on a hotter, drier day because on a hotter ,dry day temperature is high and humidity is less which helps in better evaporation. Due to the higher rate of evaporation it gives better cooling effect. Thank you
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