Problem statements

Original problem statement, 2003

Revised problem statement, 2005

MATLAB

Population balance main program

matlab file ( 2748 Bytes )

This is the main file that calls the other integration and collision kernal

programs. Note, grade efficiency is calculated assuming a given grade efficiency curve. For the 2005 version of the problem statement, grade efficiency is determined via the CHEMCAD analysis of the cyclone, so this portion can be commented out.

Number distribution

matlab file ( 1040 Bytes )

This bit generates the long differential equations from the summation and integrates them.

Beta calculator

matlab file ( 402 Bytes )

This bit of code calculates the total collision kernal as a function of

volume.

gamma

matlab file ( 380 Bytes )

This bit calculates the breakup kernal as a function of particle size...

These codes were originally written by Brendan Hoffman, Kelly Tipton, Yechun Wang, and Matt McHale, students during the Spring 2003 Particle Science and Technology class.