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The effect of angular light intensity distribution on the performance of tubular flow photoreactors
Author(s) -
Zolner William J.,
Williams John A.
Publication year - 1972
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690180616
Subject(s) - actinometer , reflector (photography) , intensity (physics) , chemistry , luminous intensity , optics , light intensity , absorption (acoustics) , volumetric flow rate , mixing (physics) , light source , mechanics , plasma , physics , quantum mechanics
The angular light intensity distribution (ALID) at the surface of several elliptical reflector‐photoreactors was determined experimentally using the optically dense potassium ferrioxalate actinometer. The distributions were well correlated by the model\documentclass{article}\pagestyle{empty}\begin{document}$$I_w (\theta) = \overline {I_w } [1 + \beta \cos \theta]$$\end{document}The correlating parameter β was a function of the ratio of the light source and photoreactor tube diameters. The theoretical effect of ALID on reactor performance was determined for a reaction which proceeded via direct absorption by the reactant. The ALID effect on performance was most pronounced under conditions of high optical densities and low radial mixing rates of reactant.