Anup Paudel
All tools

Chiller Pipe Insulation Calculator

Estimate the heat loss from a bare pipe (convection plus radiation), the loss once insulated with up to four layers, and the resulting energy savings. Results update as you type.

Inputs

Pipe & conditions
ft
ft
°F
°F
°F
Btu/h-ft²-°F
Insulation layers
in
Btu-in/h-ft²-°F
in
Btu-in/h-ft²-°F
in
Btu-in/h-ft²-°F
in
Btu-in/h-ft²-°F
Cost
$
$

Results

Convective loss0.527 kW
Radiative loss1.498 kW
Total bare loss2.025 kW
Insulated loss0.548 kW
Energy savings1.476 kW
Implementation cost322.00 $

Bare loss combines a convective term (h·A·ΔT) and a radiative term (εσA·(Tₛ⁴−Tₐ⁴)); insulated loss uses the series conductive resistance of the layers. Energy figures are instantaneous heat rates in kW.