The power to be certain
  • Model-Based Engineering

    Integrating models and data to accelerate engineering

    A Model-based Engineering (MBE) approach applies advanced process models in combination with observed (laboratory, pilot or plant) data to the engineering process.

    The objective is to enable exploration of the process decision space as fully and effectively as possible, and support design and operating decisions with accurate information.

    Typical application is in new process development, including scale-up, or optimisation of existing plants.

    What does model-based engineering involve?

    MBE typically involves high-fidelity, first principles process models validated against data in the "model validation cycle".

    model validation cycle

    MBE places high-fidelity predictive models at the heart of process design or operational analysis.

    Initial project effort is put into constructing a high-fidelity model of the plant or process that is predictive over the entire range of interest.

    This model is then used to optimise design or operation, exploring a wide design space rapidly and at low cost, and applying optimisation techniques to determine answers directly rather than by trial and error simulation.

    MBE is based on three core approaches:

    The guiding principle of model-targeted experimentation is "use experimentation to improve the accuracy of the model (rather than the process itself), then use the model to optimise the process design or operation".

    Why apply Model-based Engineering?

    Key objectives of MBE are to:

    How does MBE work in practice?

    MBE applies a family of methodologies centred on high-fidelity predictive models in a structured way.

    If necessary it is possible to deploy a variety of well-established techniques – for example, combining the physics and chemistry models derived above with Computational Fluid Dynamics (CFD) hydrodynamic information, or using population balance models – to take into account mixing and other effects introduced at larger scales.

    Examples of application

    For comprehensive examples of application, see the following articles:

    Model-Based Engineering: key components

    PSE's MBE approach is founded on: