High velocity and high dilution exhaust system
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United States of America Patent
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Jul 18, 2006
Grant Date -
Jan 26, 2006
app pub date -
Jul 23, 2004
filing date -
Jul 23, 2004
priority date (Note) -
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Abstract
The high velocity and high dilution exhaust system uses a centrifugal fan provided with a tapered nozzle. The nozzle compresses the airstream exiting the fan to increase back pressure and velocity. The air flow from the fan enters a stack having a venturi further increasing the velocity and decreasing the pressure. The decrease in pressure causes a suction, allowing the introduction of ambient air to mix with and dilute the output of the fan. The total discharge from the exhaust stack has a high velocity resulting in a plume height and effective height of the exhaust before dispersion occurs.
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