Particle concentration dynamics in the ventilation duct after an artificial release: For countering potential bioterrorist attack

You, S. and Wan, M. P. (2014) Particle concentration dynamics in the ventilation duct after an artificial release: For countering potential bioterrorist attack. Journal of Hazardous Materials, 267, pp. 183-193. (doi:10.1016/j.jhazmat.2013.12.058)

Full text not currently available from Enlighten.

Abstract

Ventilation duct serves as a potential target for bioterrorist attack. Understanding the dynamics of aerosolized harmful agents in the ventilation ducts provides the fundamentals for effective control and management, e.g., risk assessment. In this work, new models for predicting the concentration dynamics in the ventilation duct after a particle resuspension (representing the case that harmful agents are dosed when the ventilation is off and subsequently being turned on) or puff injection (representing the case that harmful agents are dosed when the ventilation is running) event were derived based on the mass balance model. The models were validated by a series of wind tunnel experiments. Indoor airborne particle concentration models were derived by incorporating the proposed ventilation duct models for resuspension and injection cases. The effects of resuspension and injection in the duct on indoor airborne particle concentration were examined by two hypothetical cases of Bacillus anthracis dosage using the derived models. For the same amount of BW agent dosage in the ventilation duct, the resuspension type release prolongs the exposure of harmful agents whereas the injection type release produces a higher peak concentration.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:You, Dr Siming
Authors: You, S., and Wan, M. P.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Journal of Hazardous Materials
Publisher:Elsevier
ISSN:0304-3894
ISSN (Online):1873-3336
Published Online:06 January 2014

University Staff: Request a correction | Enlighten Editors: Update this record