Temperature efficiency , air change efficiency and ventilation efficiency in an office room with displacement ventilation.

A field study of temperature efficiency, air change efficiency and ventilation efficiency in an office room with a displacement ventilation system has been made. The air change efficiency and the ventilation efficiency have been determined by using a tracer gas (N20) technique.  Concentrations have been measured at four heights in the room and in the supply and exhaust air.

Ventilation rates in office buildings.

             

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