modelling and simulation


A process model is a device that mimics the behaviour of an existing or conceptual process. Ex Mente focuses on the development and application of mathematical models (as apposed to physical models) implemented in the form of computer software. The output of a process modelling development is a process model that can be used to simulate the behaviour of the process and, in some cases, modelling results generated by using the model. Models are valuable tools throughout the life cycle of a process. They can be used effectively during the feasibility-study, design, fault-finding, optimisation and re-engineering phases of a process.


Models can be applied for purposes as diverse as economic evaluation, control system commissioning and testing, process design and post-mortem analysis.

With the availability of powerful and relatively inexpensive computer hardware, it becomes feasible to deploy models on-line in the plant. This makes valuable metallurgical/chemical engineering knowledge available to operational personnel around the clock, even when engineers are not present. These on-line models can be used for operator assistance and model-based control to improve the ability of the operation to meet its business-related objectives.


Ex Mente is especially strong in the development of fundamental/phenomenological process models. We do this with modelling tools that have been developed in-house. These tools enable us to produce fully functional models within a very short period of time. These models can be developed to include as much or as little detail as the purpose of the modelling exercise requires.