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Numerical simulation of human exposure to aerosols generated during compressed air spray-painting in cross-flow ventilated booths.

Authors
Flynn-MR; Sills-ED
Source
J Fluids Eng 2001 Mar; 123(1):64-70
NIOSHTIC No.
20024423
Abstract
This paper examines the use of computational fluid dynamics as a tool for predicting human exposure to aerosols generated during compressed air spray painting in cross-flow ventilated booths. Wind tunnel experiments employing a mannequin and non-volatile oil provide data to evaluate the numerical predictions. Fidap (v8.01) is used to calculate the velocity field and particle trajectories, while in-house codes were developed to post-process the trajectory data into mass concentrations, size distributions, transfer efficiency, and over-spray generation rates. The predicted dimensionless breathing-zone concentration of 0.1323 percent is in agreement with the measured value of 0.1315 percent given the uncertainties involved in such comparisons. Computational fluid dynamics is a powerful tool capable of providing useful information to occupational hygiene engineers involved in controlling human exposures to toxic airborne contaminants.
Keywords
Industrial-hygiene; Occupational-exposure; Spray-painting; Fluid-mechanics; Aerosols; Aerosol-sampling; Ventilation; Mathematical-models; Paint-spraying
CODEN
JFEGA4
Publication Date
20010301
Document Type
Journal Article
Funding Amount
280127
Funding Type
Grant
Fiscal Year
2001
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-002858
Issue of Publication
1
ISSN
0098-2202
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Journal of Fluids Engineering
State
NC
Performing Organization
Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina
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