.TransiEnt.Producer.Combined.LargeScaleCHP.CHP

Information

1. Purpose of model

Model of a combined heat and power plant

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

(no remarks)

3. Limits of validity

(no remarks)

4. Interfaces

P_set: input for Power in [W]

Q_flow_set: input for heat flow rate in [W]

outlet: FluidPortOut

inlet: FluidPortIn

eye: EyeOut

P_SB_set: input for electric power in [W]

gasPortIn: RealGasPortIn

epp: choice of power port

5. Nomenclature

(no remarks)

6. Governing Equations

(no remarks)

7. Remarks for Usage

Cascading CHP-plants:

Via parameter 'quantity' the whole CHP-plant is devided into several cascading CHP-plants which start up after one another. This implementation repeats the characteristic PQ-field several times. In total, the nominal electrical and thermal power add up to the nominal electrical and thermal power the whole CHP-plant. This is a way for a simple representation of several CHP-plants without having to model several instances of a CHP-plant-model.

Calculation of failures:

CHP-plant turns off when gas pressure falls below 'p_min_operating' and turns on agains if gas pressure increases above 'p_min_operating_backIn'.

8. Validation

Tested in check model "TransiEnt.Producer.Combined.LargeScaleCHP.Check.TestCHP_startup"

9. References

(no remarks)

10. Version History

Model modified by Oliver Schülting (oliver.schuelting@tuhh.de) in Nov 2018: added possibility to model cascading CHP-plants

Model generalized for different electrical power ports by Jan-Peter Heckel (jan.heckel@tuhh.de) in July 2018

Model modified by Oliver Schülting (oliver.schuelting@tuhh.de) in Nov 2018: added gasPort