| 摘要 |
<p>An air renewing system for renewing air in an inner space or room of a building comprises one or more air flow passages (39) extending upwards along at least part of the roof (37) of the building so that the air within the flow passages may be heated by the sun and/or the ambient atmosphere outside the building. Such heating generates an upwards directed air flow through the air passages. The upper end of the air flow passages (39) may communicate with the ambient atmosphere, and the lower end of the air flow passages may be connected to the room to be ventilated. Alternatively, the lower ends of the air flow passages may also be connected to the ambient atmosphere, and in that case the air flow generated may be used for sucking air from the room to be ventilated by ejector effect. Fresh air may flow into the room to be ventilated through air inlet openings, which may, for example, be defined in partition walls, feeding apparatuses (25) extending transversely through the room, or in the floor (17) of the room. The air supplied to the inlet openings may pass a cellar or another undergroundspace in order to be cooled. Further cooling of the inflowing air may be obtained by passing the inflowing air through a water evaporator.</p> |
