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Investigations of infectious illness incidents, modeling of air currents and ventilation analysis of virus inhalation in passenger aircraft and other environments, combine to indicate that airborne infectious disease transmission can occur within an aircraft cabin prior to the pathogens reaching the return air grilles and the HEPA recirculation filter or being exhausted overboard. The concept of Venturi gasper filtration device is being investigated to address this. This device will add entrainment capture and filtration at a gasper air outlet. Such outlets, when present, are adjustable nozzles located overhead of the seat beside the reading lights. Experiments and modeling indicates that Venturi gasper filtration will effectively double the filtered air flow reaching the breathing zone of each passenger while capturing many of the airborne particles leaving or entering this zone. The device as conceived can be built into the Personal Service Unit or added as a clip-on to the gasper nozzle. Other potential uses of Venturi filtration include enhancing the air quality performance in a variety of settings of air supply diffusers, variable air volume (VAV) distribution boxes and air curtains.
Citation: IAQ Conference: IAQ 2010: Airborne Infection Control
Product Details
- Published:
- 2011
- Number of Pages:
- 11
- File Size:
- 1 file , 900 KB
- Product Code(s):
- D-IAQ2010-C162-10
