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Title: Evaluation of Ultra-Violet Photocatalytic Oxidation for Indoor AirApplications

Abstract

Acceptable indoor air quality in office buildings may be achieved with less energy by combining effective air cleaning systems for volatile organic compounds (VOCs) with particle filtration then by relying solely on ventilation. For such applications, ultraviolet photocatalytic oxidation (UVPCO) systems are being developed for VOC destruction. An experimental evaluation of a UVPCO system is reported. The evaluation was unique in that it employed complex mixtures of VOCs commonly found in office buildings at realistically low concentrations. VOC conversion efficiencies varied over a broad range, usually exceeded 20%, and were as high as {approx}80%. Conversion efficiency generally diminished with increased air flow rate. Significant amounts of formaldehyde and acetaldehyde were produced due to incomplete mineralization. The results indicate that formaldehyde and acetaldehyde production rates may need to be reduced before such UVPCO systems can be deployed safely in occupied buildings.

Authors:
; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE. Assistant Secretary for Energy Efficiency andRenewable Energy. Office of the Deputy Assistant Secretary for TechnologyDevelopment. Office of the Building Technologies Program
OSTI Identifier:
877687
Report Number(s):
LBNL-59631
R&D Project: 4745Y2; TRN: US200607%%429
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: Healthy Buildings 2006, Lisbon, Portugal, June4-8, 2006
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ACETALDEHYDE; AIR CLEANING SYSTEMS; AIR FLOW; AIR QUALITY; EFFICIENCY; FILTRATION; FORMALDEHYDE; MINERALIZATION; MIXTURES; OFFICE BUILDINGS; ORGANIC COMPOUNDS; OXIDATION; VENTILATION; VOLATILE MATTER

Citation Formats

Hodgson, A T, Sullivan, D P, and Fisk, W J. Evaluation of Ultra-Violet Photocatalytic Oxidation for Indoor AirApplications. United States: N. p., 2006. Web.
Hodgson, A T, Sullivan, D P, & Fisk, W J. Evaluation of Ultra-Violet Photocatalytic Oxidation for Indoor AirApplications. United States.
Hodgson, A T, Sullivan, D P, and Fisk, W J. Wed . "Evaluation of Ultra-Violet Photocatalytic Oxidation for Indoor AirApplications". United States. https://www.osti.gov/servlets/purl/877687.
@article{osti_877687,
title = {Evaluation of Ultra-Violet Photocatalytic Oxidation for Indoor AirApplications},
author = {Hodgson, A T and Sullivan, D P and Fisk, W J},
abstractNote = {Acceptable indoor air quality in office buildings may be achieved with less energy by combining effective air cleaning systems for volatile organic compounds (VOCs) with particle filtration then by relying solely on ventilation. For such applications, ultraviolet photocatalytic oxidation (UVPCO) systems are being developed for VOC destruction. An experimental evaluation of a UVPCO system is reported. The evaluation was unique in that it employed complex mixtures of VOCs commonly found in office buildings at realistically low concentrations. VOC conversion efficiencies varied over a broad range, usually exceeded 20%, and were as high as {approx}80%. Conversion efficiency generally diminished with increased air flow rate. Significant amounts of formaldehyde and acetaldehyde were produced due to incomplete mineralization. The results indicate that formaldehyde and acetaldehyde production rates may need to be reduced before such UVPCO systems can be deployed safely in occupied buildings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {2}
}

Conference:
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