Turbine

Created Monday 04 August 2014

Static model of a turbine computing the outlet enthalpy from given values for inlet and outlet pressure and mass flow rate.

1. Purpose of Model


The model is supposed to be used for the simplified simulation of static cases. Its main purpose is to provide appropriate start or nominal values for similar dynamic model versions.

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 model only computes a set of parameters under specific conditions i.e. stationary.

2.2 Physical Effects Considered


Conservation of energy

3. Limits of Validity


The model is only able to calculate stationary situations.

4. Interfaces


4.1 Steam Signals


For details see SteamSignal_blue, SteamSignal_red and SteamSignal_green.

Inlet: Green connector
Outlet: Blue connector

4.2 Medium Models


VLE medium model

5. Nomenclature

6. Governing Equations


6.1 General Model Equations


Energy Conservation


The inlet and outlet enthalpies balance with the internal isententropic process with no heat losses consider the efficiency of the turbine, as shown in equation 1)

where H is the function used to specify the enthalpy at the thermodynamic state change and S the entropy.

The enthalpy change at the ports times the mass flow through the turbine yields the power produced

Mass Conservation


The mass balance is stationary with no change of mass.

Summary

A summary is available including the following:

7. Remarks for Usage


The model can only be connected with components with matching connector colour (see Example of Usage in StaticCycles).

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

04.08.2014 - Version:1.0 - Timo Tumforde
06.06.2017 - v1.2.2 - Added summary, Timm Hoppe XRG Simulation GmbH


Backlinks: ClaRa:StaticCycles