Formula for dimensioning the air heater

In order to calculate the dimensioning of the heater, you will need the following information:

1. The exterior dimensions of the heated area in meters (Length x Width x Height)

2. The required average air temperature

3. The lowest temperature in the region where the heating equipment will be operated

4. The coefficient of thermal conductivity for the wall paneling from which the heated premises are made of:

Metal paneling8
Paneling of polymere materials6
Metal, aluminum, thermal insulation of 10 mm4
Metal, aluminum, thermal insulation of 30 mm1,5
Metal, aluminum, thermal insulation of 50 mm0,7

The formula for the calculation of the required performance of the air heater in recirculation mode:

W1 = W2 + W3

W1 - Required thermal performance of the heater.
W2 - Heat power required to heat the air in the given space
W3 - Heat loss (Heat Dissipation)

W1 = W2 + W31720
W2 = m*C*T , m = V*p520
W3 = k*S*T1200

Meaning:

C - Specific heat of air
T - The gradient of temperatures, C (difference in temperature)
V - The space, m3
p - Air density of 1.3 kg/m3 at 25С
k - The coefficient of thermal conductivity
S - The area to be heated in m2

The required performance of the heater in recirculation mode:  1720W
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Formula for dimensioning the air heater (Boats)

Boat Length meters
Boat Width
Water Region
Season

The required performance of the heater in recirculation mode:  2000W
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