## THERMAL SCIENCE

International Scientific Journal

### Thermal Science - Online First

online first only
### A variational approach to a porous catalyst

**ABSTRACT**

The convection-diffusion process in porous electrodes depends greatly upon the porous structure. A fractal model for porous catalyst in a thin-zone bed reactor is established using He's fractal derivative, and a variational principle is also established in a fractal space, and an approximate solution is obtained. Additionally an ancient Chinese algorithm is adopted to solve an algebraic equation.

**KEYWORDS**

PAPER SUBMITTED: 2020-04-04

PAPER REVISED: 2020-06-13

PAPER ACCEPTED: 2020-06-13

PUBLISHED ONLINE: 2021-01-31

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