Brochure Guide

3
How does an
Evaporative Air Cooler work?
COOL ~ EFFICIENT ~ NATURAL
Evaporative air cooling is the natural way
of cooling, similar to a breeze flowing
across a lake. This breeze lowers the
temperature and has a relaxing cooling
effect on people.
An evaporative air cooler cools the air by
means of the evaporation of water. When
water evaporates into the air, the result is
a mixture of air and water molecules.
This chemical change requires heat, thus
energy or latent heat is taken from the
air molecules - dropping the actual
temperature of the air.
The recommended maximum ambient
humidity level is 60% or less, to allow a
noticeable temperature decrease* and
helps people to feel more comfortable.
The temperature decrease* will be larger
in drier climates because the lower the
humidity, the more evaporation occurs.
When used for cooling, the evaporative
air cooler should not be used in enclosed
spaces. It must be kept level and there
must be water in the water tank. The
room should have doors and windows
opened to allow free air flow. An evapo-
rative air cooler works best when placed
near an open window. Fresh air is drawn
into the cooler, circulates in the room and
exits via the door or window opening.
The maximum cooling effect is felt when
a person is in the flow of air coming out of
the evaporative air cooler.
Evaporative air coolers can also be used
to humidify dry air during the cool
weather months. To be used for humidifi-
cation, the windows and doors should be
closed. This allows the humidified air to
accumulate.
An evaporative air cooler is not an air
conditioner as it does not use a
compressor and refrigerant gas. One
should not expect an evaporative air
cooler to work as effectively as
refrigerated air conditioning. However,
the advantages of the evaporative air
cooler over refrigerated air conditioning
are:
Low purchase cost
Low electricity usage
Environment friendly (No refrigerant gas)
Maximum portability
Low maintenance cost
Why we use honeycomb cooling media?
- The Cooling efficiency of
honeycomb cooling media is
much higher than any other
cooling media due to greater
surface area for transfer of
humidity to the passing air.
COMPARED TO AIR CONDITIONERS
+
80%
Energ
y
No Compressor
Ef
ficient
+
Energy Cost = ( (Wattage x No. of hrs/day x No. of days/year) / 1000 ) x per unit cost (kWh)
For Example : Energy Cost for Split 8000 BTU Air Conditioner = ( (800 Watts x 16 hrs/day x 30 Days) / 1000) x 0.12 US$ (average cost/kwh) = 46 US$
Energy Cost for Evaporative Air Cooler = ( (140 Watts x 16 hrs/day x 30 Days) / 1000) x 0.12 US$ (average cost/kwh) = 8.06 US$
* Under tested conditions, actual performance
depends on unit and ambient condition.
Evaporative Air Cooling Mechanism