The Development and Performance of a Fluence Rate Distribution Model for a Cylindrical Excimer Lamp Supporting Information
Abstract
Ultraviolet disinfection systems employing excimer lamp technology represent a suitable choice in situations where lamp mercury content is restricted, or otherwise undesirable. The XeBr* excimer lamp emits nearly monochromatic radiation at 282 nm, and dose-response experiments with Bacillus subtilis spores have shown that it is germicidally effective. A numerical model was developed to describe the fluence rate (E ) distribution emanating from a cylindrical XeBr* excimer lamp, based on liquid water or air as the surrounding medium. The E distribution model is based on physical phenomena that areknownto govern excimer lamps; the model also accounts for refraction, reflection, and absorbance effects of the quartz lamp envelope and the media surrounding the lamp. Measurements of the E distribution by local actinometry supported the validity of the numerical model. This model can be used as a component (submodel) of a more general model to simulate the behavior of photochemical reactors that employ excimer lamps as their source of electromagnetic radiation.
Description:10 pages
Date of this Version
February 2008
Identifier
ALS-NSCORT:p83
Publisher Identifier:
Environ. Sci. Technol. 42 (5), 1605-1614, 2008. DOI: 10.1021/es070968w
Publisher
American Chemical Society
ALS NSCORT Project Number
Project 8 - Water Disinfection
Project Lead
Ernest R. Blatchley III
Language
English
ALS NSCORT Series
Published Materials
Administrative Contact
Dave Kotterman, dkotter@purdue.edu
Rights
Copyright 2008 American Chemical Society. For more information please visit the copyright section of the publisher's website at: http://pubs.acs.org/copyright/index.html, or the publisher's home page at: http://pubs.acs.org
Access
This article is not available through e-pubs. Current Purdue University Faculty, Staff and Students may also access the full-text, electronic version of the article at: http://dx.doi.org/10.1021/es070968w