Heat Pipe Calculator

Calculate heat pipe thermal resistance, heat transport capacity, and operating limits for electronics cooling.

Length of the evaporator section.
mm
Length of the adiabatic (transport) section.
mm
Length of the condenser section.
mm
Outside diameter of the heat pipe.
mm
Heat to be transported.
W

Results

Total Length-mm
Est. Thermal Resistance-°C/W
Temperature Difference-°C
Est. Max Capacity-W
References: Reay — Heat Pipes; Chi — Heat Pipe Theory and Practice