HVAC for Beginners in Jackson – What is a Misting Fan?
Anyone who has attended a large outdoor event or watched the sidelines during a televised football game has most likely seen a misting fan in action. Sometimes this type of fan is surrounded by open canvas flaps and promoted as a chill zone. The air around these fans can be up to 40° Fahrenheit cooler than the ambient temperature, turning an unpleasant 100°F (38°C) workday into a very tolerable 75°F (24°C) within minutes of operation.
When used in a closed environment such as a greenhouse, a misting fan initially cools the general area, then provides a high degree of humidity for thirstier plant species. Some specialty produce stores may also use these types of fans to keep their offerings fresh for customers. The air-conditioning effects can also make for a more pleasant shopping environment for outdoor produce stands.
Ductless Cooling in Jackson – Thermal Dynamics and Evaporative Cooling.
A typical misting fan works on the principles of thermal dynamics and evaporative cooling. If you place a wet towel in front of an electric fan, you may notice the area around the towel becomes noticeably cooler. As the water from the towel evaporates, it takes a certain amount of heat energy along with it. The fan circulates the cooler air around the room, acting like a rudimentary air conditioner. Misting technology takes this idea of evaporative cooling and makes it much more efficient and productive.
It all begins with the water. Special high-pressure pumps generate enough water pressure to reach a rating of 1000 PSI (pounds per square inch). Extremely fine nozzle openings reduce the outbound water to micron-sized droplets. This action creates a thin mist which evaporates almost immediately upon contact with the warm ambient air and sunlight. As the individual droplets pull heat energy along with them, the air temperature can drop significantly. An electric fan blows this supercooled air and mist combination for several hundred yards or more.
Mini Split AC in the USA 