@TUNNEL VENTILATION@

The supply of fresh ventilation air to a tunnel is improved by blowing, by means of a fan or air mover, air along one wall of the tunnel, or along the ceiling of the tunnel, and by moving said fan or air mover forward and backward in the tunnel. The air in the tunnel is stratified, and therefore the...

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Bibliographic Details
Main Authors INGVAR JANELID, SVEN GUNNAR BERGDAHL
Format Patent
LanguageEnglish
Published 13.06.1974
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
EARTH DRILLING
FIXED CONSTRUCTIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MINING
RANGES
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
VENTILATING
WEAPONS
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Summary:The supply of fresh ventilation air to a tunnel is improved by blowing, by means of a fan or air mover, air along one wall of the tunnel, or along the ceiling of the tunnel, and by moving said fan or air mover forward and backward in the tunnel. The air in the tunnel is stratified, and therefore the ventilation is effective also in tunnels of a considerable length.
Bibliography:Application Number: AU19720049824