heat loss from a pipe calculator
Equations and calculator to determine the conductive heat loss from a cylinder or pipe of known length.
The temperature gradient within a homogeneous material results in an energy transfer rate within the medium which can be calculated with the following equation
The illustration above depicts a single-layer cylindrical wall of a homogeneous material with constant thermal conductivity and uniform inner and outer surface temperatures. At a given radius the area normal to radial heat flow by conduction is 2 Π r L, where L is the cylinder length. Substituting this into (eq. a) and integrating with q constant gives: