.TransiEnt.Components.Electrical.FuelCellSystems.Base.FuelCellSystemEfficiency

Information

1. Purpose of model

Tool to calculate the thermal and electric effiency of fuel cell system including steam reformer

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

(no remarks)

3. Limits of validity

(no remarks)

4. Interfaces

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_in_CH4 "Input for CH4 heat flow rate" ;

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_in_evaporator "Input for heat flow rate of the evaporator" ;

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_in_preheater "Input for the heat flow rate of the preheater" ;

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_out_exhaustGasChemical "Input for heat flow rate of the exhaust (GasChemical)" ;

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_out_exhaustGasLatent "Input for heat flow rate of the exhaust (GasLatent)";

TransiEnt.Basics.Interfaces.Thermal.HeatFlowRateIn Q_flow_out_cooling "Input for heat flow rate of the cooling" ;

TransiEnt.Basics.Interfaces.Electrical.ElectricPowerIn P_el "Input for electric power" ;

5. Nomenclature

eta_th is the thermal efficiency

eta_el is the electric efficiency

eta_total is the total efficiency

Q_gen_total is the total generated heat flow rate

P_gen_total is the total generated power

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

Tested in check model "TransiEnt.Components.Electrical.FuelCellSystems.Check.TestFuelCellSystem_SOFC"

9. References

[1] Modellierung und Simulation von erdgasbetriebenen Brennstoffzellen-Blockheizkraftwerken zur Heimenergieversorgung

Master thesis, Simon Weilbach (2014)

10. Version History

Model created by Simon Weilbach (simon.weilbach@tuhh.de) on 01.10.2014

Model revised by Pascal Dubucq (dubucq@tuhh.de) on 01.10.2015

Quality check (Code conventions) by Rebekka Denninger on 01.10.2016