Copper Tubes - Heat Losses
Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.
Values from the table below can be used to indicate the heat losses from uninsulated copper pipes:
Nominal bore | Heat Loss | ||||||
---|---|---|---|---|---|---|---|
(W/m) | (Btu/hr ft) | ||||||
Temperature difference (oC) | Temperature difference (oF) | ||||||
(mm) | (inches) | 22 | 38 | 55 | 40 | 68 | 99 |
15 | 1/2 | 21 | 32 | 45 | 22 | 34 | 47 |
22 | 3/4 | 28 | 43 | 60 | 29 | 45 | 53 |
28 | 1 | 34 | 53 | 76 | 36 | 56 | 79 |
35 | 1 1/4 | 41 | 64 | 89 | 43 | 67 | 93 |
42 | 1 1/2 | 47 | 74 | 104 | 49 | 77 | 108 |
54 | 2 | 59 | 93 | 131 | 62 | 97 | 136 |
67 | 2 1/2 | 71 | 111 | 156 | 74 | 116 | 162 |
76 | 3 | 83 | 129 | 181 | 87 | 135 | 189 |
108 | 4 | 107 | 165 | 232 | 111 | 172 | 241 |
- 1 W = 3.4 Btu/hr
- 1 ft (foot) = 0.3048 m
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Related Documents
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BS 2871 Copper Tubes Table X, Y and Z - Working Pressures vs. Size
Working pressures of metric sized copper tubes according the BS (British Standard) 2871. -
Copper Tubes - Heat Carrying Capacities
Hot water heat carrying capacities in copper tubes type L. -
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Copper Tubes - Uninsulated Heat Losses
Heat loss from uninsulated copper pipes - dimensions ranging 1/2 - 4 inches. -
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Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.