The influence of wind in buildings with reference to warm air heating and air conditioning installations.

In a lecture held for T.V.V.L. members on 22nd November 1965, the influence of wind, direction of the wind and wind force on buildings were described showing the resulting pressure distribution around the building and the general effect of wind on buildings which are ventilated either naturally or mechanically. The influence of wind on a specific building can be determined by pressure measurements, for instance in a windtunnel. This is followed by measurements with an electric analogue in which light bulbs give an indication of the air movement. A detailed example of the above mentioned technique is given to determine the ventilation in the Philips Dulphar laboratory, in which special measurements were required to control radioactive air contamination under every meteorological condition. A discussion followed the lecture.