Reduce Energy Waste - Proof - U of A Swimming Pool

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Reduce Energy Waste - U of A Swimming Pool

Impact of Coenco Air Mover Circulation on Swimming Pool Area

University of Arkansas

Health, Physical Education, and Recreation Building

This 225,000 square foot four story building was built in 1984 and houses, among other things, an olympic size swimming pool. Traditionally areas containing indoor swimming pools are noted for high chlorine gas odor, oppressive humidity, wet floors and surfaces (usually associated with water damage) and uncomfortable temperature air movement interactions. These adverse conditions are present in this HPER Building.

To combat these problems, Coenco was contracted to provide support to address the concerns. Three Coenco Air Movers were installed and have been in operation for about 1 year. To determine the effectiveness of the Coenco system, a study with the system turned off was compared to the results achieved with the system on.

Temperature Comparison Test

Air Movers On

Air Movers On

Climate conditions were as follows: Time - 9:30 am Outside Temperature - 28 degrees Activities Inside - Morning swim practice was in progress

Infrared Thermography results showed the temperature variation from floor to ceiling is 3 degrees and the pattern is even, with no build up of "hot" air at the discharge duct.

Air Movers Off

Air Movers Off

Climate conditions were as follows: Time - 9:30 am, Outside Temperature - 28 degrees, Activities Insider - Morning swim practice was in progress, Thermostat(s) set on 85 degrees F

Infrared Thermography results showed the floor temperature as low as 67 degrees F, with the ceiling as high as 82 degrees F. This stratified temperature condition is fairly common with traditional HVAC methods and installations.

Summary

After doing some investigation it was found that the thermostats had not been changed from the day before and there were no difference in the building from the day before, so why the large difference? The only difference: circulation from the air movers.

Notice in the lower left corner the 67.6 degree reading, this at the southeast door next to the farthest south starting block. After discussing this area with Jeremy he stated they were doing some work in this area and the normal "seal" or "barrier" was not in place, the question was asked "was it this way yesterday?" and the answer was YES. Why did this not show up in the pictures with the "System" on, the answer is because any infiltration will get pulled to the Air Movers for distribution, this will also enhance the IAQ, because this is fresh air being brought into the air space without negative affect.

For more detailed information, please visit www.coenco.com.

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