Cooling Info From Warmair.net
Heat Gain
Cold is another word for empty. It isn't really anything. It is, as a vacuum is,
the lack of something. Cold is the lack of heat. The earth we
live on is almost empty. We live on the edge of a delicate temperature
balance only some 500° F above empty. The coldest it can ever
get is about -460° F, but "hot-wise" temperatures can reach into
the billions. We live at the bottom of a thermometer that stretches
to the moon. Our planet is a cool puddle in a desert of heat,
but water works only at these narrow temperature ranges, and life
depends on this water.
Our planet must remain empty in order to support life. Refrigerants that
leak into the atmosphere cause damage which allows extra heat
to alter and fill our emptiness. Federal and international regulations
have been devised and enacted to curb the release of certain refrigerants
into the atmosphere to prevent our emptiness from being disrupted.
A federal licence is required for handling these refrigerants.
If you're going to use refrigerants, use them conscientiously.
Much depends on it.
It is the function of a cooling system to remove unwanted heat from a structure
and relocate it to the out of doors. This heat exchange is accomplished
by the use of the refrigeration cycle as performed by your air
conditioning system. The refrigeration cycle takes advantage of
the relationships between pressure, temperature and volume, in
such a way that heat is collected inside and released outside.
It uses a condensor, a compressor, and an evaporator to accomplish
this task.
The condensor and compressor are located outside of the house, while the evaporator
is located inside the air distribution system. The quantity of
heat that needs to be removed to maintain indoor comfort on a
specific warm day for your region is known as the heat gain for
your structure*. A building gains heat from the actual outdoor
temperature and humidity levels. It gains heat from the people
inside of it, from the lights, computers, copiers, dishwashers
and ovens. But mostly it gains heat from its exposure to sunlight
and from solar radiation—the hot sun beating down on the
walls and the roof, the sunlight pouring through the windows and
warming the floors it lands on.
The sum of all of this heat accumulation is known as the heat gain of the
building.
* Many contractors distribute an extra 1500 btu of cooling to the kitchen to offset
the heat given off by the appliances, and an extra 400 Btu to
various rooms for occupants.
Copyright © 1999 Warmair.com, Inc.
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