THE COUNTERCURRENT BACKMIXING MODEL FOR FLUID BED REACTORS - COMPUTATIONAL ASPECTS AND MODEL MODIFICATIONS Academic Article uri icon

abstract

  • Numerical solution of differential equations describing the counter-current backmixing model of Fryer and Potter is very difficult due to the boundary value nature of the problem. Several numerical methods (shooting, superposition and finite difference) have been described and tested on a problem with a single first-order reaction in an isothermal fluid bed reactor. It was found that the finite difference method is the most stable method and provides accurate solution over the entire range of parameters that were investigated, while the shooting and the superposition methods could not produce accurate solutions for some parameter values. Also, some modifications of the Fryer and Potter model such as: compartment models and conversion to an initial value type of problem (Jayraman-Kulkarni-Doraiswamy model), have been described. Results obtained from compartment models are in close agreement with predictions obtained from the original Fryer and Potter model. 1987 the Indian Academy of Sciences.

published proceedings

  • SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES

author list (cited authors)

  • BUKUR, D. B.

citation count

  • 3

complete list of authors

  • BUKUR, DB

publication date

  • April 1987