recordCHP_2MW
ICE 2 MWel
Extends from TransiEnt.Producer.Combined.SmallScaleCHP.Base.BaseCHPSpecification (Record used for specification of a CHP).
Information
1. Purpose of model
record for a combined heat and power plant with 2 MW (MWM TCG2020V2)
2. Level of detail, physical effects considered, and physical insight
(Purely technical component without physical modeling.)
3. Limits of validity
(Purely technical component without physical modeling.)
4.Interfaces
(no remarks)
5. Nomenclature
(no elements)
6. Governing Equations
(no equations)
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
A. Zaczek, “Modeling of CHP-based local heating networks in order to cover the positive residual load,” Hamburg University of Technology, 2016.
10. Version History
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| General › Efficiencies | |||
| TransiEnt.Producer.Combined.SmallScaleCHP.Base.PartloadEfficiency.PartloadEfficiencyCharacteristic | EfficiencyCharLine (from BaseCHPSpecification) | TransiEnt.Producer.Combined.SmallScaleCHP.Base.PartloadEfficiency.PartloadEfficiencyCharacteristic(CL_eta_th = [P_el_min/P_el_max, eta_h_max/eta_h_max; 1.00, eta_h_min/eta_h_max], CL_eta_el = [P_el_min/P_el_max, eta_el_min/eta_el_max; 1.00, eta_el_max/eta_el_max]) | choose characteristic relative efficiency line |
| Real | eta_el_max (from BaseCHPSpecification) | 0.30 | Maximum electrical efficiency |
| Real | eta_el_min (from BaseCHPSpecification) | eta_el_max*0.85 | Electrical efficiency at P_el_min |
| Real | eta_m (from BaseCHPSpecification) | 0.9 | guessed value for mechanical efficiency (P_e/P_i=p_me/p_mi) (Hackbarth, Merhof) |
| General › Electrical Parameters | |||
| Modelica.Units.SI.Power | P_el_max (from BaseCHPSpecification) | 1e5 | Maximum power output in W |
| Modelica.Units.SI.Power | P_el_min (from BaseCHPSpecification) | 0.5*P_el_max | Minimum power output in W |
| Efficiencies | |||
| Real | eta_h_max (from BaseCHPSpecification) | 0.98 | Fuel utilization at P_el_min |
| Real | eta_h_min (from BaseCHPSpecification) | 0.95*eta_h_max | Fuel utilization at P_el_max |
| Technical Specifications › For informative purposes only | |||
| Modelica.Units.SI.Temperature | T_opt (from BaseCHPSpecification) | 338.15 | Temperature of warm engine |
| Real | thermalConductivity (from BaseCHPSpecification) | Q_flow_out_max/200 | Thermal conductivity between engines core and casing |
| Modelica.Units.SI.Power | Q_flow_out_max (from BaseCHPSpecification) | P_el_max/eta_el_max*(eta_h_max - eta_el_max) | Maximum heat flow in W |
| Modelica.Units.SI.Power | Q_flow_out_min (from BaseCHPSpecification) | P_el_min/eta_el_min*(eta_h_min - eta_el_min) | Minimum heat flow in W |
| Modelica.Units.SI.CoefficientOfHeatTransfer | k (from BaseCHPSpecification) | 20 | Coefficient of heat transfer |
| Modelica.Units.SI.Mass | m_engine (from BaseCHPSpecification) | 1000 | Approximate mass of motor |
| Modelica.Units.SI.Length | length (from BaseCHPSpecification) | 1.5 | Size of motor block |
| Modelica.Units.SI.Height | height (from BaseCHPSpecification) | 1 | Size of motor block |
| Modelica.Units.SI.Length | width (from BaseCHPSpecification) | 1 | Size of motor block |
| Integer | n_cylinder (from BaseCHPSpecification) | 4 | Number of cylinders |
| Modelica.Units.SI.Length | pistonStroke (from BaseCHPSpecification) | pistonDiameter | Piston stroke of engine |
| Modelica.Units.SI.Diameter | pistonDiameter (from BaseCHPSpecification) | 0.1 | Piston diameter of engine |
| Modelica.Units.SI.Volume | engineDisplacement (from BaseCHPSpecification) | pistonDiameter^2/4*Modelica.Constants.pi*pistonStroke | Engine displacement of single cylinder |
| Modelica.Units.NonSI.AngularVelocity_rpm | n_n (from BaseCHPSpecification) | 1500 | nominal angular velocity in rpm |
| Modelica.Units.SI.AngularVelocity | omega_n (from BaseCHPSpecification) | n_n/60*2*Modelica.Constants.pi | Nominal angular velocity |
| General › Thermal Parameters | |||
| Modelica.Units.SI.Temperature | T_return_max (from BaseCHPSpecification) | 343.15 | Maximum allowed coolant temperature |
| Real | shareExhaustHeat (from BaseCHPSpecification) | 0.3 | Share of exhaust heat flow Q_flow_exhaust on total heat flow fed into the grid Q_flow_out |
| Real | lambda (from BaseCHPSpecification) | 1 | Air–fuel ratio |
| General › Dynamic Parameters | |||
| Real | reactionTime (from BaseCHPSpecification) | 1/8 | Reaction time of engine |
| Real | damping (from BaseCHPSpecification) | 3 | Damping of engine's transfer function |
| Modelica.Units.SI.Time | syncTime (from BaseCHPSpecification) | 90 | Time needed for synchronistion to the grid |