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1 Holmberg S.

1 1998

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Ventilation Flow Organization for Efficient Elimination of Contaminated Air

Holmberg S.

International Journal of Occupational Safety and Ergonomics

1998

Vol. 4, No. 1

85--96

Displacement ventilation and well-organized ventilation flow structures are emphasized. Perhaps the biggest advantage of displacement ventilation is its increased effectiveness in removing pollutants from a ventilated space and the efficient use of ventilation air. Several questions on how the systems should be designed to achieve optimal efficiency are still unanswered. Small variations in room geometries and air supply arrangements can totally change the conditions. Results from this investigation show the importance of an even distribution of the incoming supply air, numerically calculated age-of-air values and the influence of residual tracer concentrations on rneasured mean values for the age of air.