modelNCVSensor
Extends from TransiEnt.Components.Sensors.RealGas.Base.RealGas_SensorBase (Base class for gas sensors).
Information
1. Purpose of model
Net calorific value sensor and enthalpy flow rate sensor for VLEFluidTypes.
2. Level of detail, physical effects considered, and physical insight
(no remarks)
3. Limits of validity
Can only be used for VLEFluidTypes.
4. Interfaces
GasPortIn, GasPortOut and RealOutput for NCV and EnthalpyFlowRateOut.
5. Nomenclature
NCV in [J/kg]
EnthalpyFlowRateOut in [W]
6. Governing Equations
NCV = sum(xi_i*NCV_i)
EnthalpyFlowRateOut=gasPortIn.m_flow*NCV
7. Remarks for Usage
Gross calorific values of the pure components are defined in the record TransiEnt.Basics.Records.GasProperties.NetCalorificValues.
8. Validation
Tested in check model TransiEnt.Components.Sensors.RealGas.Check.TestRealGasSensors"
9. References
(no remarks)
10. Version History
Model created by Lisa Andresen (andresen@tuhh.de) in Jun 2016
Model modified by Oliver Schülting (oliver.schuelting@tuhh.de) in Jul 2019: added enthalpy flow rate
Model modified by Robert Flesch (flesch@xrg-simulation.de), Nov 2020: added NCV in different flow directions
Model modified by Carsten Bode (c.bode@tuhh.de), Feb 2021: set evaluate=true for flowDefinition to avoid nonlinear system of equations
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Fundamental Definitions | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | medium (from RealGas_SensorBase) | simCenter.gasModel1 | Medium to be used |
| SI.MassFraction[medium.nc - 1] | xi_start | medium.xi_default | Initial composition |
| Integer | flowDefinition | 1 | Defines which flow direction is considered |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Gas.RealGasPortIn | gasPortIn (from RealGas_SensorBase) | Inlet port | |
| TransiEnt.Basics.Interfaces.Gas.RealGasPortOut | gasPortOut (from RealGas_SensorBase) | Outlet port | |
| Basics.Interfaces.General.SpecificEnthalpyOut | NCV | Net calorific value for given composition | |
| Basics.Interfaces.General.SpecificEnthalpyOut | NCV_InToOut | Net calorific value for given composition (in to out) | |
| Basics.Interfaces.General.SpecificEnthalpyOut | NCV_OutToIn | Net calorific value for given composition (out to in) | |
| Basics.Interfaces.General.EnthalpyFlowRateOut | H_flow_NCV | Enthalphy flow rate based on NCV |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter (from RealGas_SensorBase) | ||
| SI.MassFraction | xi | Mass fraction vector |