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2.6 Insulation
Two equations have been used for the insulation calculations. The heat loss from an
uninsulated wall has been calculated according to:
∆
(7)
where
is the heat loss from the wall, is the heat transfer coefficient from the wall to the
surrounding air, is the area of the wall and
∆ is the temperature difference between the
wall and the surrounding air. The heat loss from an insulated wall has been calculated
according to:
∆
(8)
where
is the thickness of the insulation,
is the heat transfer coefficient through the
insulation and is the heat transfer coefficient from the insulation to the surrounding air.
will be the same in both equations since this coefficient is determined by the fluid and the
velocity of the fluid.
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