Principle of Air Cooler
An air cooler is an electrical appliance that can blow out cool air. Its main structure includes a fan and a water curtain. When in use, just add ice water or ice cubes to the machine, and the hot air passing through the water curtain will be cooled and humidified, producing a refreshing cool breeze.
Unlike traditional fans, an evaporative cooler can lower the indoor temperature by 1-2°C, and with added water, the temperature can be lowered by 4-6°C. With the addition of ice cubes, the temperature can even be lowered by 8-10°C. This is because the evaporative cooler utilizes the latent heat of water evaporation to achieve the cooling effect, rather than just increasing air circulation. However, an environment with excessively high humidity may affect the cooling performance of the evaporative cooler.
Air Cooler VS Portable Air Conditioner
In comparison, a portable air conditioner has a more significant cooling effect, able to lower the room temperature by more than 10°C. However, it also has a higher power consumption, with an electricity cost of about $8.35 for an 8-hour operation of a 1-horsepower air conditioner, while an evaporative cooler only costs about $0.09 per hour. Additionally, a portable air conditioner requires fixed installation and is less convenient to move around, while an evaporative cooler can be placed anywhere.
In summary, while the cooling effect of an evaporative cooler is slightly inferior to a portable air conditioner, it significantly saves on electricity costs and is easier to operate and move, making it suitable for users who prefer more flexibility.