New approach for the dimensionless analysis of a unidirectional flow solar reactor based on Damköhler's number profiles.

A methodology for the analysis of the behavior of complex reactors based on the construction of profiles of a dimensionless number (Damköhler) for each main chemical species ( ) was proposed. A 4-chlorophenol mineralization reaction in a heterogeneous solar reactor with suspended TiO and addition of HO with tubular geometry and radiation collectors, fluid flow and a recirculation system was selected as a complex model system in order to validate the approach. The dynamic behavior of the reactor in dimensionless variables was modeled as a function of .

Sizing of reactors by charts of Damköhler's number for solutions of dimensionless design equations.

The reaction kinetic rate and mass transport play an important role in the sizing and scale-up of reactors. The Damköhler's dimensionless number ( ) is the quotient of these effects. A new interpretation of as a local property is introduced .