modelConnectionCondensatePipe

Connection for a steam district heating network featuring the condensate return pipe

Extends from Buildings.DHC.Networks.BaseClasses.PartialConnection2Pipe2Medium.

Information

This network connection model contains one pipe declaration for the condensate pipe, featuring a fixed hydraulic resistance. This model is intended for steam heating systems that utilize a split-medium approach with two separate medium declarations between liquid and vapor states.

In this model, it is assumed that there are no mass losses in the network connection. Further, heat transfer with the external environment and transport delays are also not included.

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

Components

TypeNameDefaultDescription
Buildings.Fluid.FixedResistances.PressureDroppipConRetConnection return pipe

Revisions

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