TUNNEL VENTILATION CONTROL DEVICE

PURPOSE:To prevent lowering of field of view due to partial rise of concentration of contamina tion by computing necessary ventilating air capacity by way of using measurement data of haze transmittance measuring equipment and carbon monoxide measuring equipment and previously set haze transmittance...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	NAGAOKA NORIO
Format:	Patent
Sprache:	eng
Schlagworte:	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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