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Pipes - Bare Surface Heat Loss

Heat loss vs. surface temperature.

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The diagrams below indicates heat loss from uninsulated pipes with bare surfaces at still-air conditions and air temperature 70 ^oF (21 ^oC). The emissivity coefficient of the surface is 0.95.

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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.
Insulation - Heat transfer and heat loss from buildings and technical applications - heat transfer coefficients and insulation methods to reduce energy consumption.
Heat Loss and Insulation - Steam and condensate pipes - heat loss uninsulated and insulated pipes, insulation thickness and more.

Related Documents

Building Materials - Radiation Constants - The radiation constant is the product between the Stefan-Boltzmann constant and the emissivity constant for a material.
Copper Tubes - Heat Loss - Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.
Emissivity Coefficients common Products - The radiation heat transfer emissivity coefficients for some common materials like aluminum, brass, glass and many more.
Oil Filled Tanks - Heat Loss - Heat loss from insulated and uninsulated, sheltered and exposed heated oil tanks.
Pipes and Cylinders - Conductive Heat Losses - Conductive heat losses through cylinder or pipe walls.
Pipes Submerged in Oil or Fat - Heat Emission - Heat emission from steam or water heating pipes submerged in oil or fat - forced and natural circulation.
Pipes Submerged in Water - Heat Emission - Heat emision from steam or water heating pipes submerged in water - assisted (forced) or natural circulation.
Radiation Emissivity Coefficients - Radiation emissivity of common materials like water, ice, snow, grass and more.
Radiation Heat Transfer - Heat transfer due to emission of electromagnetic waves is known as thermal radiation.
Steam Pipes - Heat Losses - The amount of condensate generated in a steam pipe depends on the heat loss from the pipe to the surroundings.
Steam Pipes - Heat Losses (W/m) - Heat losses from un-insulated steam pipes.
Steam Tracing of Pipe Lines - Steam tracing of pipe lines can be done to maintain appropriate product temperatures.

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