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In this paper, a closer look at the underlying computer code of the well-known Tennessee Eastman Process model is taken. Since its introduction in the 1990s typical simulation software, e.g. MATLAB, which is used to simulate the process model, has changed. Thus the original program flow devised by Downs & Vogel no longer holds. This results in problems regarding the repeatability of simulation results. This problem and its cause are considered in the following and a solution in terms of a modified code is presented. Furthermore, some additional changes are discussed, widening the useability of the simulation model (e.g. lower simulation runtime, additional process measurements).
Bathelt et al. (Thu,) studied this question.