Natural Ventilation

 

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Click Here to download a study of office natural ventilation. (95Kb)

Summary of assumptions made on construction and occupation

 

Construction

roof: exposed 75mm concrete, rigid board insulation, paviors U = 0.25W/m2C

external wall: dry lining, concrete U = 0.45 W/m2C

internal floors: exposed 150mm concrete with raised floor

windows: low E clear double glazing

atrium glass: clear single glazing

Occupation

lighting gains: 15W/m2

occupants 5W/m2

equipment: 25W/m2

Occupation 9 till 5 weekdays only.

Simulations for day 161 on Valentia with wind direction set to South-West and calendar start day set to Thursday

Flow rates and temperatures taken at 17.00 hours