An air cleaner effectiveness approach to the analysis of in-duct UVGI systems

Joseph Firrantello, William Bahnfleth

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Air cleaner effectiveness (ε) is the fractional change in concentration of an air contaminant resulting from the addition of an air cleaner to a system. Unlike component single-pass efficiency, it takes into account the aggregate effect of all contaminant removal mechanisms as well as the effects of air cleaner placement in the system. The usefulness of ε in the analysis and application of air cleaners, as well as its shortcomings, is illustrated by the modeling of in-duct ultraviolet germicidal irradiation (UVGI) in a hypothetical two-zone building served by a constant volume system. The impact of design parameters such as the location of UVGI units, particulate filter efficiency, and the nature of contaminant release are investigated, with calculated ? values ranging from 5% to 90% depending on the nature of these parameters.

Original languageEnglish (US)
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages1582-1587
Number of pages6
StatePublished - Dec 1 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume2

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period6/5/116/10/11

All Science Journal Classification (ASJC) codes

  • Pollution

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  • Cite this

    Firrantello, J., & Bahnfleth, W. (2011). An air cleaner effectiveness approach to the analysis of in-duct UVGI systems. In 12th International Conference on Indoor Air Quality and Climate 2011 (pp. 1582-1587). (12th International Conference on Indoor Air Quality and Climate 2011; Vol. 2).