Evaporative cooling is a form of cooling that uses evaporation methods to cool. An example that we all experience ourselves that is a form of evaporative cooling is perspiration. When we perspire, the sweat absorbs the heat to cool our bodies.
Evaporative cooling systems utilize the same methods as perspiration in order to cool. Evaporative coolers, often referred to as swamp coolers, are a method to cool air in warm climates that have low humidity. Evaporation of water into the surrounding air provides a natural and energy-efficient way of conditioning the surrounding area. Evaporative coolers rely on cooling air by transporting that air over water-saturated pads. This transfer causes the water to evaporate into it. The cooler air is then directed into the home or business and pushes the warm inside air out through the windows.
When an evaporative cooler is in operation, windows are opened slightly in order for warm indoor air to escape. Evaporative coolers provide a steady amount of fresh outside air into the zone unlike conventional air conditioning systems that recirculate the same stale air. Evaporative cooling is about half the cost to install a conventional central air conditioning system and uses about one fourth as much energy to operate. However, they do require much more maintenance than conventional systems and will only be efficient in areas where there is low humidity.
Sizing and Selecting Evaporative Coolers
Evaporative cooling systems are rated by the cubic feet per minute (CFM) of air that they can distribute throughout an area. Most models have a CFM range of anywhere to 3,000 to 25,000. Manufacturers recommend providing enough air capacity for 20 – 40 air changes per hour.
Evaporative Cooling Installation
Evaporative coolers are installed in one of two ways. The first method, the evaporative cooler distributes air into a central area. The second method, the evaporative cooler will be connected via ductwork and circulates the air to different zones. Centralized installations work best for compact areas that are open. Ductwork installations are best for larger homes or businesses. Down-flow evaporative coolers are commonly installed on the roofs of homes. However, many professionals prefer to install ground-mounted horizontal units. The reason behind this is it is much easier to maintain and there is less of a risk of roof leaks.
Small compact coolers are installed in windows to cool just a small area such as a room in a home. These portable systems work best in moderate climates but most likely will not be able to cool a room in hot environments. Evaporative coolers are popular choices in areas such as the Western United States that experience milder summer weather. These systems can typically reduce the temperature in a single room from anywhere between 5 to 15 degrees Fahrenheit.
Operation of Evaporative Cooling
There should be at least two different speeds and a vent-only option with most evaporative coolers. When the unit is set to vent-only, the water pump does not operate and the outdoor air will not be humidified. When set to vent-only it will operate as a whole-house fan during mild weather. Controlling the cooled air’s movement through the house is done by adjusting the openings of windows. You will need to open windows or vents on the other side. There should be at least 1 to 2 square feet of opening for every 1,000 CFM of cooling capacity.
You may need to experiment to find the right windows and the amount of which to open these windows to find the most adequate set-up. If the windows are opened too much, hot air will enter and if the windows are not open enough, humidity will begin to build up within the area. You will be able to adjust both the temperature and humidity in the area by opening the windows that you want to cool and by closing windows in unoccupied areas within the home or business.
Our Cooling Services
Why Choose K&S Heating & Air
When you choose to use K&S Heating & Air for your evaporative cooling needs you can rest assured in your decision as we are one of the leading experts in the field within the Dallas, TX area. All of our professional technicians go through a rigid screening process, drug and alcohol tests before they are hired. Our technicians also stay up to date by continuing their education in the HVAC field by taking ongoing classes to help them stay on top of emerging technologies, techniques and innovations in the field. All of this helps K&S Heating & Air provide you with the service you want and need. You can count on us to get the job done correctly, professionally and with your safety in mind.
Additional Air Conditioning Services
K&S Heating and Air’s professional technicians can take care of all of your air conditioning needs. From providing general repairs to installations, you can count on K&S Heating & Air to provide you with what you need. Some of the following air conditioning services provided are as follows:
Contact K&S Heating & Air
K&S Heating and Air provides indoor heating, air and indoor air quality solutions for both residential and commercial customers in the Dallas, TX metropolitan area. We offer a full line-up of professional indoor air quality services. There is no job to big or too small that we cannot handle. If you are in need of service for your home or office then give us a call today. K&S Heating and Air is available twenty four hours a day and seven days a week for your convenience.
We are a family owned and operated business that has been providing heating and cooling service solutions for many years in the Dallas area. K&S Heating and Air is also a proud member with the Better Business Bureau where we maintain a solid A+ rating. If you are in need of service and have questions or concerns then you can give us a call and one of our professional and friendly HVAC technicians will assist you.