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.
