Evaporative
cooling is a method of converting hot air into a cool
breeze using the process of evaporating water. It is
similar to the cool refreshing effect you feel when
you immediately step out of a pool.
Evaporative coolers utilize the natural process of water
evaporation along with an air-moving system to create
effective cooling. Fresh outside air is pulled through
wetted filters that cool the air through water evaporation.
A blower wheel then circulates the cool air throughout
a room, home, or business.
Cooler Temperatures - More Comfort!
Evaporative
air-cooling creates cooler temperatures a number of
ways:
Environmental
Benefits
Evaporative
cooling provides 100% fresh, cool air continuously while
traditional refrigerated air conditioning utilizes a
closed system that recirculates the same stale dry air
over and over. Constant air movement of the evaporative
cooler pushes hot air out removing dust, pollen, smoke,
odor, and pollution and replaces it with cool fresh
air.
Unlike air conditioning, evaporative cooling does not
require an airtight structure to operate at maximum
efficiency. In fact, you need to allow your home to
"breathe."
Opening doors and windows or installing
VENTMATIC™ vents
to let air escape to the attic properly ventilates your
home.
Evaporative cooling is also an environmentally-friendly
alternative to air conditioning since it has no CFC's
or HCFC's.
Energy Savings
Evaporative coolers use 70% less power
than air conditioning.
Example:
A 1500 square foot home is located in Phoenix, Arizona
where the dry bulb temperature is 107, the wet bulb
temperature is 71, and the wet bulb depression is 36.
Air
Conditioner
Assuming
air conditioning supplies 500 square feet of cooling
per ton, 3 tons of air conditioning would be required
to cool a 1500 square foot home. Since an air conditioner
would probably run most of the time in this climate,
its electric usage would be approximately 3.6 Kw per
hour depending on your utility.
Evaporative
Cooler
Using
a Champion or Tradewinds cooler with a minimum of 5000
CFM and ¾ horsepower motor, total power consumption
(motor and pump combined) would be approximately 0.991
Kw per hour.
Results
If
the air conditioner and the evaporative cooler ran for
a comparable period of time, the ratio of energy for
the evaporative cooler to the air conditioner would
be 0.991 Kw per hour to 3.6 Kw per hour, or 0.275. This
means the evaporative cooler would use 72 ½%
less power than an air conditioner to cool the same
area in the same environment.
Energy
Cost Savings
Assuming
a new energy cost of .14¢ per Kwh, this comparison
would result in a possible net savings of ($362.88 -
$99.89) = $262.99 each month! With this type of savings,
evaporative coolers are a significant cost effective
alternative to air conditioning.
