Heat Loss from Steam Pipes (W/m)

The amount of condensate generated in steam pipes depends on the heat loss from the pipe to the surroundings. A table with heat loss in W/m from uninsulated steam pipes

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The heat loss is a function of the pipe size and insulation quality, the steam temperature (pressure) and the surrounding temperature.

This table can be used to estimate the heat loss from uninsulated steam pipes.

Heat Loss (W/m)
Temperature Difference between Steam and Surrounding air (oC) Dimension (mm)
15 20 25 32 40 50 65 80 100 150
56 54 65 79 103 108 132 155 188 233 324
67 68 82 100 122 136 168 198 236 296 410
78 83 100 122 149 166 203 241 298 360 500
89 99 120 146 179 205 246 289 346 434 601
100 116 140 169 208 234 285 337 400 501 696
111 134 164 198 241 271 334 392 469 598 816
125 159 191 233 285 321 394 464 555 698 969
139 184 224 272 333 373 458 540 622 815 1133
153 210 255 312 382 429 528 623 747 939 1305
167 241 292 357 437 489 602 713 838 1093 1492
180 274 329 408 494 556 676 808 959 1190 1660
194 309 372 461 566 634 758 909 1080 1303 1582

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Related Topics

Related Documents

  • Recommended Insulation Thickness of Pipes Insulation thickness of heating systems - hot water and low, medium and high pressure steam systems
  • Yearly Heat Loss from Steam Pipes Yearly heat loss from steam pipes can be considerable. This table compare the yearly heat loss in the amount of coal and oil consumption for insulated and uninsulated steam pipe lines at different dimensions and operation time.
  • Heat Loss from Steam Pipes (btu/h per ft) The amount of condensate generated in steam pipes depends on the heat loss from the pipe to the surroundings.A table with heat loss in btu/h per ft from uninsulated steam pipes

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