In short, even humid environments can see cooling impacts. Evaporative cooling is effective all the way up to 90-95% relative humidity and is used in hot and humid facilities in areas including Mobile AL, Houston TX, New Orleans LA, Athens GA and more. Drops in temperature combined with the high velocity fan can provide cooling for your team inside or out. The air temp and relative humidity will determine the impact and cooling effect. Even in humid climates, you can expect cooling as shown below.
Cooling impacts move along the green dotted lines.
Evaporative Cooling is an Isenthalpic Process (Heat Energy of Air remains constant). An example is that a system at 104F and 30% relative humidity can be cooled with Evaporative Cooling to 79F and 90% RH. Conversion of the sensible heat to latent heat is an isenthalpic process. Evaporative cooling causes a drop in temperature of the air proportional to the sensible heat drop and an increase in the humidity proportional to the latent heat gain. Thus, evaporative cooling is effective all the way up to 90-95% relative humidity and is used in hot and humid facilities in areas including Mobile AL, Houston TX, New Orleans LA, Athens GA and more. Further, per ASHRAE-55 standards, Power Breezers enable individuals in these environments to reach thermal comfort (all heat-related factors impacting a working person).
SET is the temperature required for a person sitting in an office to experience the same feeling as a person performing a physical activity in the actual work environment (e.g. a warehouse employee unloading a trailer in summer). It takes into consideration the metabolic rate, the clothing insulation level of the employee, the air and radiant temperatures, the air speed as well as the humidity. Power Breezer is SET on SET (Standard Effective Temperature) which is the most realistic heat measurement for a working person indoors or outdoors taking into consideration all factors that contribute to Thermal Comfort.
Drops in temperature combined with the high velocity fan can provide cooling for your team inside or out. Our customer base has many customers in very humid as well as dry environments where we cool the employees not the space. We would be happy to provide additional detailed psychometric charts or demonstrate our cooling in any environment. Give us a call to learn more!