modelPoint_m_flow

Powerlaw with flow coeffient fitted based on flow exponent and 1 datapoint

Extends from IDEAS.Airflow.Multizone.Coefficient_m_flow.

Information

Model that fits the flow coefficient of the massflow version of the orifice equation based on 1 datapoint of mass flow rate and pressure difference, and given flow exponent.

A similar model is also used in the CONTAM software (Dols and Walton, 2015).

References

  • W. S. Dols and B. J. Polidoro,2015. CONTAM User Guide and Program Documentation Version 3.2, National Institute of Standards and Technology, NIST TN 1887, Sep. 2015. doi: 10.6028/NIST.TN.1887.

Parameters

TypeNameDefaultDescription
Test data
Modelica.Units.SI.PressureDifferencedpMea_nominalPressure difference of test point
Modelica.Units.SI.MassFlowRatemMea_flow_nominalMass flow rate of test point

Revisions

  • February 2, 2022, by Michael Wetter:
    Revised implementation.
    This is for IBPSA, #1436.
  • Apr 6, 2021, 2020, by Klaas De Jonge:
    First implementation.