Online trace heating design for pipelines with selfregulating heating tapes

The calculation of heat losses is done with the following formula:

Q_v= (2 * Pi * lambda * (T_h - T_min)) / (ln * (D/d))

1. Design Data  -  please read carefully -
  Attention: Not all wrong entries will be corrected automatically

Please fill out the entry form as completely as possible. Use checkboxes for the existing entries. The values assigned to the entries are taken into account in the calculation, but is not directly displayed.
This applies to pipes (outer diameter, extra length for valves, supports etc ) and for insulation (thermal conductivity).
If you input your own values, please use the point as a decimal delimiter.
A hint for a meaningful thickness of the insualtion is: the thickness of the insulation should be approx. the nominal pipe diameter. (eg: DN 50 -> 50mm insulation)
Please take care for the thermal resistance of the insulation material.
When you have completed your entries, start the design by the appropriate button.
A new window will open with the output data (the input data  will be repeated), which are shown on a printer friendly page. If all the data correctly, you can print out the design sheet and use it as a documentation of your heating circuit
If you have to change your input data just go back to the input window in your browser(should be still open).  You can close the output window with a button.
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