[hvac] Internal Ports

[DaJansenGit]

Internal Ports - Old discussion:

• We don't have information about the internal connections e.g. a heatpump with 4 ports.
• If existing we can use information by port fluid to distinguish between the different circuits, if not we have to ask the user
• Keine sichere Information, wie die Ports intern verschaltet sind -> kann diese Information in IFC eindeutig abgebildet werden? Wenn nicht -> BuildingSmart (david)
• Überprüfen ob Sink und Source Informationen plausibel sind, ansonsten error und später evtl. Korrketurfunktionen, Probleme müssen dokumentiert werden
• Error log sollte möglichst direkt vollständig sein, damit wir nicht viele Iteratinonsschleifen haben
• Funktionen bspw. durchmesser anschlüssen -> Vermutung -> Abfrage an Nutzer ob Vermutung korrekt
• Verschiedene Informationsquellen: Sink and Source, Medium, Gruppenzugehörigkeit, Evtl. Name, Fließrichtung
• Abfrage über GUI

Edit: We should rely on the following schema (from final report). In the follow up project we want to rely on correct assigned Groups (in the example of the heatpump that might be two groups for evaporator and condenser cycle).

Steps to finalize

• [ ] integrate an attribute group for the following element.py classes: ProductBased& Port. As IfcRelAssignsToGroupis only valid for IfcObjects. IfcPortis an IfcObject, but IfcRelSpaceBoundarynot. That's the reason why we can't use ProductBasedonly.

• [ ] For "sensitive" elements like Heatpumps, Boilers etc. where we know that multiple internal connections exist we should integrate a check in the following way, as we already know that this might mean that the groups are not granular enough: if n_ports>2 and n_groups == 1 --> user decision

• [ ] For elements with > 2 ports, we can then connect all ports with the same group. In case we can't get the internal connection based on this procedure, an additional task with a decision called decide_internal_connections should be included that can be called.

Related to

• 33

• 181

[DaJansenGit]

changed due date to December 31, 2019

By David Jansen on 2019-06-18T14:33:45 (imported from GitLab project)

[DaJansenGit]

current state: alle internal ports are connected to each other. We need to have this in mind!