calculated natural ventilation

hannes · Posts: 17 Location: Gent

Hi,
in DB calculated natural ventilation is a cooling mechanism and only operates when the inside temperature exceeds the setpoint temperature. How do I model in the simulation that even when there is no need for cooling (in winter)people may open windows for short periods to respond to the need of fresh air (eg 10 l/s per person). Or is this guaranteed by for example a minimum infiltration rate in function of oocupancy?
Regards, hannes

Laurent_Support · Posts: 292 Location: Vincennes

Hello,

To ensure natural ventilation will work, set its setpoint to 15° for example (in Activity tab), then in the HVAC tab you can choose a Fresh air / pers method.

Here is documentation:
http://www.designbuilder.co.uk/helpv1/Content/Natural_Ventilation.htm

Regards,
Laurent

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