Effect of parameter variations on operation of a nonisothermal plug flow reactor

61 minutes ± 36 minutes

Fogler: Chapter 8

This simulation allows the student to explore the effects of various parameters on the performance of a non-isothermal plug flow reactor.  The student may choose from eight simulations that span all combinations of exothermic/endothermic reactions and reversible/irreversible reactions, as well as a simulation that takes pressure drop into account.  The variable parameters include the heat transfer coefficient, the inlet reactant flowrate, the diluent flowrate, the inlet temperature, and the ambient temperature: 

The results of the simulator may be analyzed in the form of plots of concentration, conversion, or temperature as a function of reactor volume.  The module may also be run in an interactive mode, in which the student must achieve specific goals (e.g. achieve a given conversion without exceeding a given temperature within the reactor), in order to get to the center of the reactor complex. 
The review section includes a derivation of the energy balance equation for a PFR: 
 
 

In the interactive mode, mastery is based on the correct solution of two consecutive problems (e.g.:  arriving at the center of the reactor complex). 

We have used the simulator portion of this module as a tool in a group problem solving exercise.  Students had to vary various parameters and explain their observations, then use the newly gained insight to optimize a system.  A sample assignment, for System 2 in the �individual problems� menu, follows.  Since the assignment was to be completed within a one hour class period, explicit instructions and suggestions for parameter values were given. 

Instructions for installing and using the ICMs are available.