Photocatalytic coverings assessment: from canyon street measurements to 3-D modelling

Author(s): A. Plassais, F. Rousseau, E. Eriksson, L. Guillot
Paper category : conference
Book title: International RILEM Symposium on Photocatalysis, Environment and Construction Materials - TDP 2007
Editor(s): P. Baglioni and L. Casssar
Print-ISBN: 978-2-35158-056-1
e-ISBN: 978-2-35158-057-8
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 85 - 91
Total Pages: 7
Language: English

Abstract: Most assessments of the de-pollution effect of photocatalytic materials are based on laboratory scale tests. Those tests, although accurate for comparing or demonstrating the depollution effect, can hardly take into account external conditions, in particular air flow and thus pollutant dispersion. Moreover, on-site measurements, although mostly successful, are time and money-consuming. Those facts pushed us to develop a numerical simulation tool to demonstrate and assess the de-pollution effect of such materials. This tool is built by adapting numerical simulation tools incorporating a photocatalytic material in term of a deposition velocity at the surface. This velocity is then calibrated, for a given reference material, by using the well-documented experimental measurements obtained on a specific experimental building site, the street canyon site. The extension to other materials or conditions is simply made by changing the deposition velocity value: the comparison with the reference material is done though a laboratory scale test.

Online publication: 2011-07-01
Publication type : full_text
Public price (Euros): 0.00