BoundaryFuel Txim flow

Created Mittwoch 11 November 2015

This model provides a boundary condition for a fuel medium at specified mass flow rate, temperature and composition of the fuel. The lower heating value can be set to a predefined value or calculated automatically with the so called Verbandsformel for the given elemental composition.

1. Purpose of Model

This model can be used to set up constant or variable boundary conditions for mass flow rate, temperature and composition for a fuel medium.

2. Level of Detail, Physical Effects Considered and Physical Insight



2.1 Level of Detail

Referring to Brunnemann et al. [1], this model refers to the level of detail L1 because the system is modeled without the use of balance equations.

2.2 Physical Effects Considered


2.3 Level of Insight

No different levels of detail are available.

3. Limits of Validity



4. Interfaces


4.1 Physical Connectors


Basics:Interfaces:Fuel outlet fuel_a


4.2 Summaries

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4.3 Inputs

5. Nomenclature



6. Governing Equations

This model simply converts the real input values mass flow rate, temperature and medium composition into a ClaRa fuel stream connector.


6.1 System Description and General model approach


6.2 General Model Equations

Since this model is an idealised boundary, no balance equations are used.

To calculate the lower heating value if wanted, the following version of the Verbandsformel is used:

7. Remarks for Usage

This component contributes to the automatic efficiency calculation.

8. Validation

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9. References

[1] Johannes Brunnemann and Friedrich Gottelt, Kai Wellner, Ala Renz, André Thüring, Volker Röder, Christoph Hasenbein, Christian Schulze, Gerhard Schmitz, Jörg Eiden: "Status of ClaRaCCS: Modelling and Simulation of Coal-Fired Power Plants with CO2 capture", 9th Modelica Conference, Munich, Germany, 2012

10. Authorship and Copyright Statement for original (initial) Contribution

Author:
DYNCAP/DYNSTART development team, Copyright 2011 - 2022.
Remarks:
This component was developed during DYNCAP/DYNSTART projects.
Acknowledgements:
ClaRa originated from the collaborative research projects DYNCAP and DYNSTART. Both research projects were supported by the German Federal Ministry for Economic Affairs and Energy (FKZ 03ET2009 and FKZ 03ET7060).
CLA:
The author(s) have agreed to ClaRa CLA, version 1.0. See https://claralib.com/pdf/CLA.pdf
By agreeing to ClaRa CLA, version 1.0 the author has granted the ClaRa development team a permanent right to use and modify his initial contribution as well as to publish it or its modified versions under the 3-clause BSD License.

11. Version History