# Residence Time Distribution of Single Continuous Stirred-Tank Reactors Subject to a Square Pulse Input

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Consider a single CSTR (continuous stirred-tank reactor) with a residence time equal to three hours. A square pulse input of width is defined by , if and if , where is the Dirac delta function and is the unit step function. This Demonstration plots both the CSTR's residence time distribution (RTD) curve and the square pulse input for user-set values of the width parameter . If , one recovers the usual RTD for an impulse input.

Contributed by: Housam Binous and Ahmed Bellagi (March 2011)

Open content licensed under CC BY-NC-SA

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## Details

S. M. Walas, *Chemical Reaction Engineering Handbook of Solved Problems*, New York: Gordon and Breach Publishers, 1995 p. 517.

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