.TransiEnt.Basics.Functions.GasProperties.getRealGasGCV_xM

Information

1. Purpose of model

This model is used to calculate the gross calorific value (GCV), also known as higher heating value (HHV) of a fuel gas mixture based on mole fractions and molar mass and respective molar calorific values from a record.

2. Level of detail, physical effects considered, and physical insight

(no remarks)

3. Limits of validity

(no remarks)

4. Interfaces

(no remarks)

5. Nomenclature

(no elements)

6. Governing Equations

(no remarks)

7. Remarks for Usage

If there are components in the gas which don't have a corresponding entry in the GCVm values record, they will just be ignored, giving a faulty calorific value. The function will throw a warning.

GCVIn was added to give the possibility to define a constant calorific value. If this value is set to 0, the GCV will be calculated by the composition of the defined medium.

8. Validation

Tested in check model "TransiEnt.Basics.Functions.GasProperties.Check.TestGCVCalculation"

9. References

(no remarks)

10. Version History

Created by Lisa Andresen (andresen@tuhh.de), Sep 2016

Interface

function getRealGasGCV_xM
  extends TransiEnt.Basics.Icons.Function;
  input TILMedia.VLEFluidTypes.BaseVLEFluid realGasType "Real gas type" annotation(
    choicesAllMatching = true);
  input SI.MoleFraction[:] x_in "Mole fractions";
  input SI.MolarMass M_in "Molar mass";
  input SI.SpecificEnthalpy GCVIn "Set this to a specific value for a constant GCV or to zero for GCV calculation";
  output SI.SpecificEnthalpy GCVOut "Returned GCV";
end getRealGasGCV_xM;