Abstract

A digital simulation language program, DPS, developed for the unsteady state simulation of multicomponent process systems, is described. Although a continuous system simulation language, the program allows for the specification of a variety of discrete events of the type encountered in process applications. Typical of these events are the opening/closing of valves, starting/stop ping pumps, etc. DPS uses powerful graphical techniques for sorting and sieving the model equations. The use of DPS is demonstrated by simulating the dynamic behaviour of two dif ferent types of systems: a simple multicomponent mixing pro cess and a control system described by transfer functions.

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