Population Balance

Question 1

Briefly describe Population Balance Modelling

Answer 1

● fast emerging mathematical framework
● takes into account different physical and chemical phenomena that lead to the evolution of the discrete particulate (droplet) phase

Question 2

Give the 5 major factors that will influence the distribution of property space

Answer 2

① Influx / Outflux
② Death - objects removed
③ Birth - objects created
④ Agglomeration - reduction in number but mass = constant
⑤ Breakage - increase in number but mass = constant

Question 3

What is Population Balance Equation?

Answer 3

● describes the dynamics (movement) of the population in relation to the factors that will affect the distribution in property space

General expression of change in population (dN) with respect to change in time (dt):

dN/dt = Growth + Agglo. + Break. + Influx - Outflux + Birth - Death