Radiation profiles in an empty annular photoreactor with a source of finite spatial dimensions

Abstract A model of radiant energy emission for tridimensional sources has been developed and used to predict radiation flux density profiles in an annular photochemical reactor. This paper presents results for a reactor without dispersion or absorption effects; that is, reflexions and refractions have been neglected and the energy has been assumed to propagate in a transparent medium. Computed radiation profiles agree well with published experimental data in a similar lamp‐reactor set up. Also, the formulation does not introduce, as it is the case with all line models, any form of singularities in the prediction of radiation flux density values. Finally, a parametric study of the effects of lamp dimensions on the shape of the radiation profiles was also made.