why desert cooler cools on hot dry day

Question

why desert cooler cools  on hot dry day

Answer

A desert cooler cools better on a hot dry day because on a hot dry day temperature is high and humidity is less which helps in betterevaporation. Due to the higher rate of evaporation it gives better coolingeffect.

Answer

This is because on the hot dry day the humidity is too much low so the evaporation takes place easily. (Remember:- Humidity is an enemy of evaporation)

Answer

How Desert Cooler Cools on Hot Dry Day
Desert coolers are designed to work effectively in hot and dry climates, providing a refreshing cool breeze indoors. Here's how they achieve this cooling effect:

Evaporative Cooling Process:
Desert coolers utilize the principle of evaporative cooling to lower the temperature of the air. When hot, dry air passes through the wet cooling pads inside the cooler, the water evaporates and absorbs heat from the incoming air. This process results in cooler, moistened air being circulated back into the room.

Humidification of Dry Air:
In arid regions, the air is typically very dry, with low humidity levels. Desert coolers help to increase the humidity in the air by adding moisture through the evaporation of water in the cooling pads. This humidification effect not only cools the air but also makes it more comfortable to breathe.

Natural Cooling without Refrigerants:
Unlike air conditioners that rely on refrigerants to cool the air, desert coolers use a natural and energy-efficient cooling mechanism. By simply circulating air through water-soaked pads, they can cool the air without the need for harmful chemicals or high energy consumption.

Circulation of Fresh Air:
Desert coolers also provide the added benefit of circulating fresh air from outside into the room. This constant flow of fresh air helps to improve indoor air quality and ventilation, creating a more comfortable living environment.
In conclusion, desert coolers are an effective and eco-friendly cooling solution for hot, dry climates. By harnessing the power of evaporative cooling and increasing humidity levels, they can provide a cool and refreshing indoor environment without the need for refrigerants or excessive energy consumption.

Similar Class 9 Doubts

A desert cooler given comfort due to cooling caused by evaporation of water. Under which one of the following conditions it works more effectively?

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

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

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

why a desert cooler cool more on a hot dry day?

Top Courses for Class 9View all

Science Class 9

Social Studies (SST) Class 9

Mathematics (Maths) Class 9

English Grammar Advanced

English Class 9

Top Courses for Class 9

Top Courses for Class 9

Suggested Free Tests

Related Content

Class 9 Study Material

Class 9 Subjects

Competitive Examinations for Class 9

NCERT Books

NCERT Solutions

Reference Books for Class 9

Other Popular Exams

Company