December 2004

Process Control

Consider modeling transient state reactions with spreadsheets

New techniques streamline analyzing process control variables

Coker, A. K., Chairman, Depart of Chemical an dPRoces Engineering Technology, Jubail Indistrial College

A newly developed mathematical model can simulate transient state chemical reactions in a continuous stirred tank reactor (CSTR) with an Excel spreadsheet program. This model simulates the dynamic behavior of a first-order chemical reaction with a decay constant in a continuous flow stirred-tank reactor. Analytical and numerical solutions of the dynamic model were done using the spreadsheet and the Fortran programs. The results from these methods had good agreement, justified using the Excel spreadsheet program as an integral part of a reactor-control system. The following example demonstrates the benefits from this method. Background. In the very competitive world, engineers and designe

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