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Chemical engineering calculations to assist process, plant operation and maintenance engineers.
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Heat Transfer
Insulation Heat Loss
Insulation Heat Loss Calculation
Estimates Heat Loss from an Insulated and Bare Horizontal Steel Pipe along with calculation of Surface Temperature.
Data
Pipe Size (inch)
0.5
0.75
1
1.25
1.5
2
2.5
3
3.5
4
5
6
8
10
12
14
16
18
20
24
26
28
30
Operating Temperature
° F
Ambient Temperature
° F
Wind Speed
mile/h
Insulation Details
Insulation
Calcium Silicate
Cellular Glass
Elastomeric
Fiberglass
Mineral Wool
Polyisocyanurate
Temperature Range (0° F to 1200° F)
Surface Emmisivity
(ε )
0.04 - Aluminium, new, bright
0.10 - Aluminium, oxided, in service
0.10 - Galvanized steel, new, bright
0.13 - Stainless steel, new, cleaned
0.28 - Galvanized steel, dipped or dull
0.30 - Stainless steel, dull, in service
0.50 - Aluminized paint
0.80 - Painted metal
0.90 - All Service Jacket
0.90 - PVC jacketing
0.90 - No jacket
Thickness
inch
Result
