modelDistributionCondensatePipe

Model of a steam distribution network using fixed resistance pipe model for condensate returns

Extends from Buildings.DHC.Networks.BaseClasses.PartialDistribution2Pipe2Medium.

Information

This is a model of a distribution network for steam heating systems. The model utilizes a split-medium approach with two separate medium declarations between liquid (condensate return) and vapor (steam supply) states. The piping network features:

  • a connection model with fixed hydraulic resistance and no heat loss in the condensate return pipe segments;
  • a dummy pipe model with no hydraulic resistance and no heat loss for the steam supply pipes; and
  • a dummy pipe model with no hydraulic resistance and no heat loss for the end of the distribution line (after the last connection).

References

Kathryn Hinkelman, Saranya Anbarasu, Michael Wetter, Antoine Gautier, Wangda Zuo. 2022. “A Fast and Accurate Modeling Approach for Water and Steam Thermodynamics with Practical Applications in District Heating System Simulation,” Energy, 254(A), pp. 124227. 10.1016/j.energy.2022.124227

Kathryn Hinkelman, Saranya Anbarasu, Michael Wetter, Antoine Gautier, Baptiste Ravache, Wangda Zuo 2022. “Towards Open-Source Modelica Models For Steam-Based District Heating Systems.” Proc. of the 1st International Workshop On Open Source Modelling And Simulation Of Energy Systems (OSMSES 2022), Aachen, German, April 4-5, 2022. 10.1109/OSMSES54027.2022.9769121

Parameters

TypeNameDefaultDescription
Nominal condition
Modelica.Units.SI.PressureDifferencedp_nominalPressure drop at nominal mass flow rate

Revisions

  • September 15, 2023, by Kathryn Hinkelman:
    Updated publication references.
  • March 2, 2022, by Kathryn Hinkelman:
    First implementation.