Generic communication standards for CCS modelling

Generic communication standards for CCS modelling

Jozsef Gaspar, Kaj Thomsen, Philip Fosbøl

29th May, 2013 Belgium, Antwerp

1

Why standardize? • Plant wide optimization

– Difficult when running several/different software suppliers

• Securing results of simulation can be widely distributed and optimised – Decreasing manual transfer of results – Preventing iterative optimization – Maintaining accuracy

• The process simulation is out of focus

– The technology is in focus

2

DTU MODEL MOTIVATION CAPE-OPEN CO INTERFACE SIMULATION DTU MODEL

Outline CAPE-OPEN background

Simulator architecture

Recipe of interoperability: • DTU CAPCO2 capture model • CAPE-OPEN interfaces

Simulation with Aspen Plus

Conclusions

3

MOTIVATION CAPE OPEN CO INTERFACE SIMULATION DTU MODEL

CAPE-OPEN background • Cape Open Standards formulated during 1997-1999

• Official partners involved:

₋ BASF, Bayer, BP, DuPont, Elf, ICI ₋ Aspen Tech, Hyprotech, SIMSCI ₋ Imp. College, RWTH-Aachen, INP-Toulouse, DTU etc.

• Technology

₋ Object oriented ₋ COM/COBRA ₋ .NET

4

MOTIVATION CAPE-OPEN CO INTERFACE SIMULATION DTU MODEL

Simulator architecture Process modeling

Environmnet

Process Modeling Component

Middleware

Physical Properties

Unit Operations

Numerical Solvers

Analyses Tools

Aspen Plus, Hysys, COFE, Matlab, gPROMS

Handle communication between objects Layer of software above OS

Output Material Object

CAPE OPENUnit Operation

Private Variables

Energy/Information Ports

Input Material Object

Public Variables

Global VariablesProcess Modeling Environment

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Process modeling Environmnet

Process Modeling Component

Middleware

Physical Properties

Unit Operations

Numerical Solvers

Analyses Tools

Output Material Object

CAPE OPENUnit Operation

Private Variables

Energy/Information Ports

Input Material Object

Public Variables

Global VariablesProcess Modeling Environment

Simulator architecture - unit operation

6


Recipe of interoperability

1. Model description and validation 2. CAPE-OPEN interface implementation 3. Registration for COM interoperability 4. Simulation with the CAPE-OPEN module

7


DTU Model description

Qcondense

Qreboil

Vout

GAS LIQUID

z=h

z+∆z

z

z=0

G|z+∆z

G|z L|z

L|z+∆z

q

Ni

Rich/lean liquid

Lean/rich liquid

CO2 rich/lean gas

Lout

Gout Lin

Gin Flue gas

8

W: H2O C: CO2 G: Gas L: Liquid z: Distance N: Mass Flux q: Heat flux


Total ( )C w

dG N N aSdz

= − +

CO2 CC C

dy dGG y N aSdz dz

= − −

H2O ww w

dy dGG y N aSdz dz

= − −

Energy ( ) ( )( ), , , ,( ) ( )L L L LLp tot p tot L p W G vap W L W p C G diss L C

dT dLLC C T aS C T H T N C T H T N qaSdz dz

= − + ∆ + + ∆ −

Total wdL N aSdz

= −

CO2 CC C

dx dLL x N aSdz dz

= − −

H2O ww w

dx dLL x N aSdz dz

= − −

Energy ( ), ,G G G GGp tot p tot pW W pC C G

dT dGGC C aS C N C N T qaSdz dz

= − + + −

Model validation

1E 3A 3C 1A

L/G ratio

1A 1E 3C 3A

Reboiler temperature

1E 3A 3C 1A

L/G ratio

Absorber Temperature Desorber Temperature Absorber CO2 fraction


Reboiler heat duty

CAPE-OPEN interface

CUnitBase

Load() Save() Initialize() Validate() Calculate() Terminate()

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public override void Initialize(){ // Define input ports

this.Ports.Add(new CapeOpen.CUnitPort("pGasIn", "Gas In",CapeOpen.CapePortDirection.CAPE_INLET, CapeOpen.CapePortType.CAPE_MATERIAL));

this.Ports.Add(new CapeOpen.CUnitPort("pLiquidIn", "Liquid In", CapeOpen.CapePortDirection.CAPE_INLET, CapeOpen.CapePortType.CAPE_MATERIAL));

this.Ports.Add(new CapeOpen.CUnitPort("pGasOut", "Outlet Stream", CapeOpen.CapePortDirection.CAPE_OUTLET, CapeOpen.CapePortType.CAPE_MATERIAL));

this.Ports.Add(new CapeOpen.CUnitPort("pLiquidOut", "Liquid Out", CapeOpen.CapePortDirection.CAPE_OUTLET, CapeOpen.CapePortType.CAPE_MATERIAL));

// Define double precision valued parameter this.Parameters.Add(new CapeOpen.CRealParameter("Column height", "Column height", 17.0, 17.0, 0.0,

100.0, CapeOpen.CapeParamMode.CAPE_INPUT, "m"));

// Define option type – string valued parameter this.Parameters.Add(new CapeOpen.COptionParameter("Packing type", "Define the packing type",

"Rocha,Bravo&Fair", PackingType, false, CapeOpen.CapeParamMode.CAPE_INPUT));

// Define boolean valued parameter this.Parameters.Add(new CapeOpen.CBoolParameter("Inlcude Condenser",true

CapeOpen.CapeParamMode.CAPE_OUTPUT));}


public override void Calculate(){// Get the material Object from an Input Port CapeOpen.ICapeThermoMaterialObject pLiquidIn = null;try { pLiquidIn = this.Ports[PortIndexArray].connectedObject as CapeOpen.ICapeThermoMaterialObject; }catch (System.Exception p_Ex) { ... }

// Get Component IDs and properties (temperature, flow rate)try { pLiquidInComps = pLiquidIn.ComponentIds as string[]; pLiquidInFlow = pLiquidIn.GetProp("flow", "Overall", pLiquidInComps, null, "mole") as double[]; pLiquidInT = pLiquidIn.GetProp("Temperature", "Overall", null, "Mixture", null) as double[] }catch (System.Exception p_Ex) { ... }

CAPE-OPEN interface CUnitBase


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public override void Calculate(){...Continuation ...

WRAPPING FORTRAN CAPCO2 MODEL INTO VISUAL C#

// wrap a MO and set the stream propertiesCapeOpen.MaterialObjectWrapper pLiquidOut = new CapeOpen.MaterialObjectWrapper(this.Ports[PortIndexArray].connectedObject);try { pLiquidOut.SetProp("Pressure", "Overall", null, null, null, Pressure); pLiquidOut.SetProp("Temperature", "Overall", null, null, null, LiquidPhaseTemp); pLiquidOut.SetProp("flow", "Overall", pLiquidInComps, null, "mole", LiquidPhaseComp); ... }catch (System.Exception p_Ex) { … }

// Release the material object if it is a COM object. if (pLiquidIn.GetType().IsCOMObject) System.Runtime.InteropServices.Marshal.ReleaseComObject(pLiquidIn); }

Microsoft Visual C#

FORTRAN DLL

CAPE-OPEN interface

DTU CAPCO2 CORE

CUnitBase


12


Register for COM interoperability

13


regasm.exe

Aspen Plus, Hysys, COFE, Excel, Matlab, gPROMS


14


Stream input specifications CAPE-OPEN Module menu


15


Conclusions

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• Robust model for rate based calculations

• The DTU CapCO2 compared to experimental data. • Generalized and combined absorption and desorption unit

• CAPE-OPEN interface standards for a unit operation

• CAPE-OPEN module demonstrated in Aspen Plus

• Focus is key equipment's calculations, NOT simple modelling principles

Was it too complicated?

17

Jozsef Gaspar: [email protected] Kaj Thomsen: [email protected] Philip Fosbøl: [email protected]

For more information contact:

mailto:[email protected]



Generic communication standards for CCS modelling

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