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Donnerstag, 1. September 2011
Eco friendly evaporative air cooler: Eco friendly air cooler: Top 7 Reasons to Purchase...
How Do Eco-friendly Evaporative Air Coolers Work?
How Do Eco-friendly Evaporative Air Coolers
Work?
The result is that hot dry air is converted into cool moist air that is blown into a house for cooling. The process works best when there is a good flow of air and the relative humidity of the incoming air is below 30%. The efficiency (cooling effectiveness) goes down with an increase in the relative humidity of outside hot air.
Experiment - Examining relative humidity effects on evaporative cooler operation
In
many location where there is low
relative humidity, one effective and inexpensive means to cool houses and
businesses is with evaporative coolers. These use a fan to draw
hot, dry outside air through water wetted pads where evaporation of the water
cools the air. The cool moist air is then blown into the house and distributed
for cooling.This experiment allows you to input the outside air relative
humidity and the outside air temperature to obtain the temperature of the air
that is blowing from the Air Cooler into the house.
What you find: For a given temperature of outside air, as the relative humidity rises the temperature drop between the outside and inside air becomes less and less. Top 7 Reasons to Purchase an Air Cooler: http://www.gzxingke.en.alibaba.com 1.Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.For very dry air or low relative humidity,the temperature drop can be 30 degrees or more. Temperatures greater than 80 degrees in the output air to the house is usually considered too high and few people will use them when this occurs.
AS The temperature of the
remaining water drops , water is evaporated by the moving air. Heat and energy
is carried away by the faster moving molecules as water in the
Air Cooler evaporates.when the water evaporates the air near the
surface increases its relative humidity and would slow down the evaporation if
it was not blown away and replaced with air with a low relative humidity. The
wind from the Evaporative cooler fan increases evaporation and
the rate the energy leaves the liquid water.
Temperature is a measure of the energy
in the water.Since the energy in the remaining
water is dropping so too is the temperature of the remaining water. The same
thing happens when you lick the back of your hand and blow on it. Top 7 Reasons to Purchase an Air Cooler Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.It feels cool.
This is how an evaporative cooler works. Water is pumped over
porous pads where air is drawn through causing the water to
evaporate and cool the air.
The result is that hot dry air is converted into cool moist air that is blown into a house for cooling. The process works best when there is a good flow of air and the relative humidity of the incoming air is below 30%. The efficiency (cooling effectiveness) goes down with an increase in the relative humidity of outside hot air.
Experiment - Examining relative humidity effects on evaporative cooler operation
 |
| Evaporation Cooling Experiment Chart |
 |
| Evaporative Cooler Operation Illustration |
What you find: For a given temperature of outside air, as the relative humidity rises the temperature drop between the outside and inside air becomes less and less. Top 7 Reasons to Purchase an Air Cooler: http://www.gzxingke.en.alibaba.com 1.Healthy life style Some types of air coolers, provide comfort to people with allergies and rest.For very dry air or low relative humidity,the temperature drop can be 30 degrees or more. Temperatures greater than 80 degrees in the output air to the house is usually considered too high and few people will use them when this occurs.
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