modelGasStorageVesselHeatTransfer_L2

Gas storage vessel including heat transfer to the environment

Extends from TransiEnt.Basics.Icons.StorageGenericGas, Base.MatchClassGasStorage.

Information

1. Purpose of model

This model represents an gas storage vessel for real gases.

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

This model uses the models GasStorage_constXi_L2 or GasStorage_varXi_L2 and can be used for real gases with constant or variable compositions. A heat transfer to the ambient is considered using a wall model (ClaRa.Basics.ControlVolumes.SolidVolumes.CylindricalThickWall_L4 from ClaRa, it can be neglected if wished so) and an outer heat transfer model.

3. Limits of validity

The model is only valid for negligible pressure losses and negligible changes of the heat transfer coefficient inside and outside of the storage (other heat transfer models can be used). For high pressures there are errors due to errors in the gas models.

4. Interfaces

gasPortIn: Real gas output

gasPortOut: Real gas input

p_gas: signal output of the gas pressure

5. Nomenclature

(no elements)

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

(no remarks)

9. References

(no remarks)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) in Oct 2016

Model revised by Carsten Bode (c.bode@tuhh.de) in Apr 2018 (changes due to ClaRa changes: exchanged wall model, added wall model for top and bottom)

Parameters

TypeNameDefaultDescription
Fundamental Definitions
TILMedia.VLEFluidTypes.BaseVLEFluidmediumsimCenter.gasModel1Medium in the gas storage
Heat Transfer
BooleanincludeWalltruefalse for neglecting the wall for heat transfer
SI.CoefficientOfHeatTransferalpha_nom_outer3Constant heat transfer coefficient
Geometry
SI.Thicknessthickness_wall0.05Wall thickness
Initialization
SI.TemperatureT_wall_start283.15Start values of wall temperature
IntegerinitOption213Type of initialization
Numerical Efficiency
IntegerstateLocation2Location of states
StringsuppressChattering"True"Enable to suppress possible chattering in wall
Statistics
BooleancalculateCostsimCenter.calculateCosttrue if cost shall be calculated

Connectors

TypeNameDefaultDescription
TransiEnt.Basics.Interfaces.Gas.RealGasPortIngasPortIn
TransiEnt.Basics.Interfaces.Gas.RealGasPortOutgasPortOut
TransiEnt.Basics.Interfaces.General.PressureOutp_gas

Components

TypeNameDefaultDescription
SI.TemperatureT_surroundingsimCenter.T_amb_constTemperature of the surroundings
TransiEnt.SimCentersimCenter
TransiEnt.ModelStatisticsmodelStatistics
TransiEnt.Storage.Gas.GasStorage_constXi_L2storage
Summarysummary

Contents

NameDescription
Summaryprotected
MaterialWall