How an Evaporative Cooler Works

Swamp Cooler

An evaporative cooler, also known as a swamp cooler, is a type of air conditioning system that cools air by using the evaporation of water. Unlike a traditional air conditioning system, which uses a refrigerant to cool air, an evaporative cooler uses the natural process of evaporation to cool the air.

The evaporative cooler consists of several main components: a fan, a water pump, a water basin, and a cooling pad. The fan draws warm, outside air into the cooler and blows it over the wet cooling pad. As the air passes over the wet pad, water from the pad evaporates, cooling the air.

The cooled air is then blown out into the room or building, providing a comfortable environment for the occupants. The water pump is responsible for circulating water from the water basin through the cooling pad, keeping the pad wet and allowing for evaporation to occur.

In order for an evaporative cooler to work effectively, the air outside must be dry and hot. As the air is cooled by the evaporation of water, the relative humidity of the air increases. In a dry climate, this increased humidity is not a problem, but in a humid climate, the increased humidity can make the air feel uncomfortable.

Despite this limitation, evaporative coolers are a cost-effective and energy-efficient way to cool air in dry, hot climates. They use less electricity than traditional air conditioning systems, and they can provide a comfortable environment at a lower cost.

In summary, an evaporative cooler is a type of air conditioning system that uses the evaporation of water to cool air. It consists of a fan, a water pump, a water basin, and a cooling pad, and it is most effective in dry, hot climates.

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