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Displacement ventilation - effects of movement and exhalation.

Bjorn E, Mattson M, Sandberg M, Nielsen P V, 1997
air movement | displacement ventilation | occupancy effects
Bibliographic info: USA, Washington DC, Healthy Buildings/IAQ '97, 1997, proceedings of a conference held Bethesda MD, USA, September 27 - October 2, 1997, Volume 2, pp 163-168
Languages: English

Full-scale experiments were made in a displacement ventilated room with two breathing thermal manikins to study the effect of movements and breathing on the vertical contaminant distribution, and on the personal exposure of occupants. Concentrations were measured with tracer gas equipment in the room and in the inhalation of both manikins. Tracer gas was added in the heat plume above a sitting manikin, or in the exhalation through either the nose or the mouth. The other manikin moved back and forth at different speeds on a low trolley. The mentioned experimental conditions have a significant influence on contaminant distributions and personal exposures.


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