Evaporative Cooling

Evaporative Cooler

Wet the back of your hand and then blow on it. Your skin surface feels cooler. That’s evaporative cooling. A swamp cooler or an evaporative cooler, is essentially a box-shaped appliance with porous surfaces that enable air to pass through. The fan inside the swamp cooler pulls outside air through the sides and into the appliance. The fan moves the hot outside air through water-wetted pads, cooling the air about 20-25ºF as the air evaporates water molecules from the pads. The fan then blows the cooled air through the house. Swamp coolers are popular in dry climates because they are … Continue reading →