Modeling Exhaust Dispersion for Specifying Acceptable Exhaust/intake Designs
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چکیده
Introduct ion This guide provides general information on specifying acceptable exhaust and intake designs. It also offers various quantitative approaches (dispersion modeling) that can be used to determine expected concentration (or dilution) levels resulting from exhaust system emissions. The guide, one in a series on best practices for laboratories, was produced by Laboratories for the 21st Century (“Labs 21”), a joint program of the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE). Geared toward architects, engineers, and facility managers, the guides contain information about technologies and practices to use in designing, constructing, and operating safe, sustainable, high-performance laboratories. Studies have shown a direct relationship between indoor air quality and the health and productivity of building occupants.(1,2,3) Historically, the study and protection of indoor air quality has focused on emission sources emanating from within the building. For example, to ensure that the worker is not exposed to toxic chemicals, “as manufactured” and “as installed” containment specifications are required for fume hoods. But emissions from external sources, which may be reingested into the building through closed circuiting between the building’s exhaust stacks and air intakes, are an often overlooked aspect of indoor air quality. MODELING EXHAUST DISPERSION FOR SPECIFYING ACCEPTABLE EXHAUST/INTAKE DESIGNS
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Modeling Exhaust Dispersion for Specifying Acceptable Exhaust/intake Designs
Introduct ion This guide provides general information on specifying acceptable exhaust and intake designs. It also offers various quantitative approaches (dispersion modeling) that can be used to determine expected concentration (or dilution) levels resulting from exhaust system emissions. The guide, one in a series on best practices for laboratories, was produced by Laboratories for the 21st C...
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