Impact of reflection on the fluence rate distribution in a UV reactor with various inner walls as measured using a micro-fluorescent silica detector.

摘要: An assessment of the impact ultraviolet (UV) reflection from inner walls is important for accuracy model predictions fluence rate (FR) distribution and improvement reactor efficiency. In this study, FR in an annular UV with various reflectances was measured in-situ by using a 360° response micro-fluorescent silica detector. The tests were performed water transmittances ranging 65% to 99% composed quartz/aluminum foil, quartz/stainless steel, or quartz/black cloth, whose coefficients determined be 80.5%, 26.1% 11.1%, respectively. results demonstrate that wall high coefficient can lead marked increase weighted average FRs, thus greatly improving Furthermore, presently used models could have error up 35% commonly stainless steel as result influence inner-wall reflection. Finally, it found uniformity strongly dependent on diffuse property wall, which better delivery reactor. This work has potential application well optimize design high-efficiency reactors.