MiMiC Advanced Modeling Objects are a set of rigorous first-principles, dynamic models of process plant unit operations designed for high-performance simulations for operator training or automation system testing.

The MiMiC Advanced Modeling Objects are part of the MiMiC Advanced Modeling Objects License that adds sophisticated modeling objects into the MiMiC Simulation Studio modeling palette. These Objects can be used on MiMiC systems for application software testing or operator training. The MiMiC Advanced Modeling Objects License provides:

• Medium-High to High Fidelity Simulation Performance
• Rigorous First Principles process modeling using proven dynamic, real-time modeling methods
• Unit Operation modeling objects
• Easy handling of individual stream component physical properties using MiMiC Component Sets
• Block to block communications of all parameters with one connection using MiMiC Streams
• MiMiC OTM Process Snapshot support
• MiMiC OPC Server Access to all model parameters

In MiMiC Simulation Studio, process models using these objects can be integrated with any other models or MiMiC dynamic modeling blocks. All modeling objects in MiMiC are IEC1131 function blocks. Models can be built off-line and then viewed executing on-line with real-time values from the MiMiC Simulation engine. The process of going from off-line model building to on-line model tuning is fast and intuitive.

Advanced Modeling Objects

The MiMiC Advanced Modeling Objects provide high-fidelity dynamic models for a wide range of process plant equipment and unit operations. The objects include:

• Vessel - complete mass, heat, and pressure balance for process vessels
• Valve - dynamic pressure, flow calculation across throttling valves configured to the installed valve characteristics.
• Pump - dynamic model of process pumps with pump curve characterization and performance view.
• Pressure Reducing Valve - dynamic model of transfer between steam headers.  Includes an option for Fisher Valves where direct coefficients from Fisher Controls Severe Service Catalog can be used to configure the model.
• Heat Exchanger - High precision heat exchanger with stream fouling and ambient temperature loss controls and flash calculation.
• Dynamic Heat Exchanger - wide dynamic range heat exchanger models with flash (VLE) calculation
• Compressor - dynamic model of centrifugal and axial compressors with discharge curve characterization and performance view.
• Stream Input, Stream Output - boundary blocks for handling stream inputs and outputs to the process model.

MiMiC Advanced Modeling Objects in MiMiC Simulation Studio

Advanced Modeling Objects Infrastructure

MiMiC Advanced Modeling Objects include modeling infrastructure that makes the development of accurate, dynamic process models in MiMiC quick and easy . This infrastructure includes:

• MiMiC Thermodynamic Properties Database
• MiMiC Process Streams
• MiMiC Component Sets
• MiMiC Engineering Unit Handling
• MiMiC Dynamic Flow Solver

MiMiC Thermodynamic Properties Database

The MiMiC Thermodynamic Properties Database includes over 1400 commonly used chemical compounds.  The database contains all relevant thermodynamic properties and has been validated against the National Institute of Standards and Technology (NIST) database, managed by the United States Department of Commerce.   When a component is selected in a MiMiC Component Set, the MiMiC Advanced Modeling Object selects the appropriate thermodynamic property to use in the model.  In addition the thermodynamic property can be selected for use in a MiMiC Calc block for custom modeling.

MiMiC Thermodynamic Properties Wired to MiMiC Calc Block

MiMiC Process Streams

Connections between modeling functions in MiMiC base modeling functions are made with Wires.  Wires pass the floating point value of the connection, the status, and the engineering units.  In MiMiC Advanced Modeling Objects, connections are made with Streams.  Streams pass an array of information between the modeling objects including component concentration and activity, physical properties, and piping design information.  The single Stream connection allows the user to quickly connect unit operation models and pass complete process data between them.

MiMiC Process Streams In Use and Parameters

MiMiC Component Sets

MiMiC Component Sets provide a simplified method for selecting and managing stream components.  Component sets are selected and managed in MiMiC Explorer under the library section.  Any combination of chemical components found in the MiMiC Thermodynamics Properties Database can be grouped together.  Once the component set is defined, it can be used in any Advanced Modeling Object by selecting the given name of the Component Set.

MiMiC Component Set in Use in Distillation Modeling Object

MiMiC Engineering Unit Handling

MiMiC Advanced Modeling Objects allow the user to select the engineering units for each object individually so the the user can input configuration parameters in the form that it exists in the plant design data. Within each object, the dynamic simulation calculations are solved in SI units and then displayed to the user in the selected units. Differences between objects are resolved by the MiMiC Simulation Server on the Stream connection. This sophisticated system saves time in building and maintaining dynamic simulations in MiMiC.

Engineering Unit selection for MiMiC Advanced Modeling Object

MiMiC Dynamic Flow Solver

MiMiC Advanced Modeling Objects include a dynamic flow solver that automatically balances and coordinates the flow between passive and active flows. The dynamic flow solver works for up to an 8 element by 8 element flow system. The solver calculates the flow for passive nodes such as the Stream Tee objects and coordinates flow for active nodes such as the Valve or Pump objects. The dynamic flow solver does not require any user intervantion to configure or tune.

Flow network of MiMiC Advanced Modeling Objects using MiMiC Dynamic Flow Solver

Ordering Information

The MiMiC Advanced Modeling Objects License can be purchased with a MiMiC base system license or added to any MiMiC system current on MiMiC Software Support.