Heat Loss from Oil Pipes

Heat loss in W/mK and Btu/hr ft oF from oil tubes ranging temperatures 10 - 38oC (50 - 100oF)

Heat loss from oil pipes are indicated below:

Heat Loss
W/mK
(Btu/hr ft oF)
Nominal bore
mm
Oil Temperature
up to 10 oC
(up to 50 oF)
10 - 27 oC
(50 - 80 oF)
27 - 38 oC
(80 - 100 oF)
15 0.7
(0.4)
0.9
(0.5)
0.9
(0.5)
20 0.7
(0.4)
1.1
(0.6)
1.1
(0.6)
25 0.8
(1.4)
1.2
(0.7)
1.4
(0.8)
40 2.1
(1.6)
1.7
(1.0)
1.9
(1.1)
50 2.8
(1.6)
2.1
(1.2)
2.2
(1.3)

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  • Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency

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