Circular pipelines

Input of  Ring pipes

• Property:

The start node of the first sub-element is identical to the end node of the last sub-element

• Conditions for a ring pipe to be recognized by the program:

1. It must be a distribution pipe or a main distribution pipe (type V or H)
2. The ring pipe may only contain one feed-in point
3. The start of the ring pipe must be at the feed-in point, and the end point must also be there

• 2 pipes in one node:

 Normal case: Two differently named pipes meet at one node

 Special case: Three differently named lines meet as in a ring pipe.

 A so-called zero element has to be inserted (i.e. a pipe segment of length 0).

 A node is fictitiously split into 2 nodes.