Heat Loss Diagrams of Insulated Pipes

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The heat loss diagrams below can be used as an indication of the heat loss from insulated pipes at various temperature differences. The diagrams are based on

• metal pipes
• fiber glass insulation with thermal conductivity 0.036 W/mK
• outdoor condition with moderate wind 9 m/s

A safety factor of 10% is included.

• indoor location - reduce values with 10%
• mineral wool insulation - increase values with 6%
• rigid cellular polyurethane - reduce values by 30%
• Heat loss diagram (W/m)

Pipe Heat Loss - Insulation thickness 80 mm

• 1 W/m = 0.305 W/ft
• 1 ^oC = 1.8 ^oF

Pipe Heat Loss - Insulation thickness 50 mm

Pipe Heat Loss - Insulation thickness 40 mm

Pipe Heat Loss - Insulation thickness 30 mm

Pipe Heat Loss - Insulation thickness 25 mm

Pipe Heat Loss - Insulation thickness 20 mm

Pipe Heat Loss - Insulation thickness 10 mm

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Related Topics

• Heat Loss and Insulation - Heat loss from pipes, tubes and tanks - with and without insulation - foam, fiberglass, rockwool and more
• Heat Loss and Insulation - Steam and condensate pipes - heat loss uninsulated and insulated pipes, insulation thickness and more
• Insulation - Heat transfer and heat loss from buildings and technical applications - insulation methods and coefficients to reduce energy consumption

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