Evaporative cooling is actually an oldest and simplest form of air conditioning available till today. Generally when dry air comes in contact with water, it absorbs the water and becomes humid or damp air. When the air is less humid, it can absorb more water and a large amount of evaporation takes places. Similarly, evaporative cooling systems evaporate the water to cool the air. Fresh, warm, dry air from outside is drawn in via a cooling unit. This warm air is passed or filtered through moist pads or quilts where evaporation cools the air and increases its moisture content. The cool air is distributed in the house via ducts or outlets placed strategically throughout the house. The process is as similar as to the experience of feeling cold as soon as you get out of a swimming pool, in a breeze.
Systems Used In Homes
Evaporative coolers are also known as swamp coolers. They can lower the temperature of the outside air to as much as 30 degrees. There are 2 types of evaporative coolers that you can choose from- the direct evaporative coolers add moisture to your house which indeed is a huge benefit in dry climates and the other type of cooler is the indirect evaporative cooler where the evaporation of water happens on one side of the heat exchanger. The air is forced across the other side of the heat exchanger to cool it, but in this case the air does not pick up the moisture.
Install Evaporative Coolers in 2 Ways
You can choose central location installations where the cooler blows cool air into a central location at home. Such types of installations are ideal for compact houses that are open from room to room.
Another type of installation is connecting the cooler to the ductwork. If you have a large house with multiple bedrooms and hallways, then the duct system will be ideal. The cooler will distribute the cool air via the ducts to the entire house. Installing down-flow evaporative coolers on the roof is a choice opted by many, though professionals recommended ground mounted horizontal coolers which have less risk of leaking roofs, and is easy to maintain.
Choose the Right Evaporative Cooling System
To get maximum benefit out of evaporative cooling, the coolers must be of the right size. The cooling capacity in an evaporative cooler is measured through the fan pressure required to circulate the cool air in your house, in cubic feet per minute, not in the amount of heat it can remove from the house. So it is vital to first measure the cubic square feet of your house, and then choose the right evaporative cooler that is ideal for the size of your house. Also, remember that for evaporative coolers to work efficiently, fresh air is required, which makes it vital to have open windows or doors. Evaporative coolers do not work in rooms without good natural ventilation. They are perfect for dry climates as humid climate will decrease their efficiency.
Benefits of Using Evaporative Cooling
An evaporative cooling system is cost-effective and eco friendly. Due to the current negative impact of technology on the environment, evaporative cooling systems create a healthy indoor environment. As evaporative cooling does not involve the use of refrigerants, it will not add chemicals or pollutants to damage your surroundings and the environment. Evaporative coolers use less power per hour due to their design. They cost almost 3 times less expensive when compared to traditional cooling costs. This leads to huge utility and energy savings in the long run. You can enjoy fresh, cool air that is healthy when compared to recycled air that air conditioning provides.
February 20, 2017