Drawing pipes
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The thermal losses can also be added to the pipes. If you click on the pencil on the right in the main parameter list, the pop-up shown below will appear. The classes that can be selected are based on the German standard DIN EN 12828.
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The isolation value changes depending on the pipe diameter, this is shown in the table below for class 1 to class 6. The thermal losses will be calculated during a dynamic simulation in the function of the pipe length, pipe diameter, isolation class, and environment temperature.
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But this is a very time-consuming job, therefore we advise using the isolation classes.
The numbers below represent the overall Heat coefficient per meter pipe length in W/(K*K). To get the total heat transfer coefficient of the whole pipe segment in (W/K), simply multiply by the pipe length.
Class 1 | Class 2 | Class 3 | Class 4 | Class 5 | Class 6 | Custom | ||
DN15 | 0,279 | 0,247 | 0,216 | 0,187 | 0,1598 | 0,1344 | 0,063 | W/mK |
DN20 | 0,293 | 0,257 | 0,224 | 0,193 | 0,1642 | 0,1346 | 0,069 | W/mK |
DN25 | 0,312 | 0,277 | 0,236 | 0,202 | 0,1708 | 0,1424 | 0,077 | W/mK |
DN32 | 0,332 | 0,288 | 0,248 | 0,211 | 0,1774 | 0,1472 | 0,085 | W/mK |
DN40 | 0,352 | 0,304 | 0,26 | 0,22 | 0,184 | 0,152 | 0,092 | W/mK |
DN50 | 0,392 | 0,335 | 0,284 | 0,238 | 0,1972 | 0,1616 | 0,107 | W/mK |
DN65 | 0,451 | 0,382 | 0,32 | 0,265 | 0,217 | 0,176 | 0,127 | W/mK |
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