The contaminant efficiency of a ventilated ceiling used in kitchen has been determined as function of type of ventilation and air flow rate. The pollutant capture and containment efficiency can be 85-93 % using the concept of low velocity ceiling supply and centralised capture jet, and is as high as 98 % when combined with displacement ventilation at floor level.
The effect of supply air systems on the efficiency of a ventilated ceiling
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Year:
2007
Bibliographic info:
Building and environement, Vol. 42, Issue 4, April 2007, pp 1613-1623