desert cooler works better on a dry summer day
Answers
on a hot dry day temperature is high and humidity is less which helps in better
evaporation.
Higher the rate better the cooling
What is desert cooler?
Desert cooler is a device which cools the air present in the surrounding environment. It works on principle of evaporation.
How desert cooler works?
Desert cooler works on principle of evaporation of water. It sprinkles water In our surrounding and also on us. The water which falls on us undergoes the process of evaporation. Before it evaporates we know that it needs some heat source from where it can absorb heat. So, it absorbs the heat from our body and by air present around us and evaporates.
Why it works better on dry summer day ?
It works better on dry summer day because in dry summer day humidity will be low. As humidity is low so, evaporation occurs very fast (rate of evaporation increases), due to which the water evaporates fast which means heat of our surrounding is absorbed due to which we feel cool. That's why it is said that it works better on dry summer day.