NIOSHTIC-2 Publications Search
A user-friendly approach for modeling air dispersion of chemicals in industrial facilities.
Authors
Zemba SG; Luis SJ
Source
Cambridge Environmental, Inc., Cambridge, Massachusetts 1993 Sep; :1-138
NIOSHTIC No.
00217754
Abstract
Algorithms developed to model airborne concentrations of hazardous chemicals in large indoor spaces in which the pollutants are not uniformly distributed were described. The approach used involved dividing the indoor space being studied into a network of rectangular volumes called parallelepipeds. A volume element modeling the first order differential equation integrating the mass of the pollutant in the volume representative of each parallelepiped was described. The influence of physical processes such as contaminant emission, local air supply and exhaust, and chemical removal due to reaction and deposition was evaluated. Exchange elements specified the rates of air transfer between adjacent volume elements and these elements were used to generate interconnected grids for modeling pollutant dispersion. The authors conclude that this model is useful in determining the causes of indoor air pollution in situations in which adequate ventilation data are available.
Keywords
NIOSH-Grant; Grants-other; Mathematical-models; Indoor-air-pollution; Ventilation-systems; Air-quality; Industrial-environment; Indoor-environmental-quality
Contact
Cambridge Environmental Inc 58 Charles St Cambridge, MA 02141
Publication Date
19930928
Document Type
Final Grant Report
Funding Amount
49680
Funding Type
Grant
Fiscal Year
1993
NTIS Accession No.
PB94-151792
NTIS Price
A08
Identifying No.
Grant-Number-R43-OH-03009
NIOSH Division
OEP
Priority Area
Grants-other
Source Name
Cambridge Environmental, Inc., Cambridge, Massachusetts
State
MA
Performing Organization
Cambridge Environmental, Inc., Cambridge, Massachusetts
Page last reviewed: September 25, 2020
Content source:
National Institute for Occupational Safety and Health
Education and Information Division