Heat Loss Double-Pane Window Equation and Calculator

Heat Transfer Engineering
Thermodynamics
Engineering Physics

Heat Loss through a Double-Pane Window Equation and Calculator

Heat Loss through a Double-Pane Window Equation and Calculator

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Preview: Heat Loss Through a Double-Pane Window Calculator

Heat Loss Equation

R Total

R Convection 1

R Glass 1

R Glass 2

R Air

R Convection 2

SUrface Temperature

Where:

Q = Heat Steady State Transfer (W)
A = Area (m2)
Ln = Length (m)
k = Thermal Conductivity (W/m · °C)
T∞1 = Temperature (°C)
T∞2 = Temperature (°C)
T1 = Temperature (°C)
h1 = Heat Transfer Coefficient (W/m2 · °C)
h2 = Heat Transfer Coefficient (W/m2 · °C)
Rconv, 1 = Thermal Resistance (°C/W)
Rconv, 2 = Thermal Resistance (°C/W)
Rglass1 = Thermal Resistance Glass (°C/W)
Rglass2 = Thermal Resistance Glass (°C/W)
Rair = Thermal Resistance Glass (°C/W)

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