.BuildingSystems.Fluid.Sensors.EnthalpyFlowRate

Information

This model outputs the enthalphy flow rate of the medium in the flow between fluid ports. The sensor is ideal, i.e., it does not influence the fluid.

If the parameter tau is non-zero, then the measured specific enthalpy h_out that is used to compute the enthalpy flow rate Ḣ = ṁ h_out is computed using a first order differential equation. See BuildingSystems.Fluid.Sensors.UsersGuide for an explanation.

For a sensor that measures the latent enthalpy flow rate, use BuildingSystems.Fluid.Sensors.LatentEnthalpyFlowRate.

Revisions

• October 19, 2020, by Antoine Gautier:
  Changed default value for tau from 1 to 0.
  This is for #1406.
• February 25, 2020, by Michael Wetter:
  Changed icon to display its operating state.
  This is for #1294.
• January 26, 2016, by Michael Wetter:
  Made unit assignment of output signal final.
• January 18, 2016 by Filip Jorissen:
  Using parameter tauInv since this now exists in BuildingSystems.Fluid.Sensors.BaseClasses.PartialDynamicFlowSensor. This is for #372.
• August 31, 2013, by Michael Wetter:
  Removed default value tau=0 as the base class already sets tau=1. This change was made so that all sensors use the same default value.
• June 3, 2011 by Michael Wetter:
  Revised implementation to add dynamics in such a way that the time constant increases as the mass flow rate tends to zero. This can improve the numerics.
• April 9, 2008 by Michael Wetter:
  First implementation. Implementation is based on enthalpy sensor of Modelica.Fluid.