首页 > Term: surface air leakage
surface air leakage
The amount of surface air entering a fan through the casing at the top of the upcast shaft, the airlock doors, and the fan-drift walls. The extent of leakage will depend on the fandrift water-gage method of construction, the number and type of entrances, and whether the upcast shaft is used for winding. The surface leakage at airlocks may vary from about 25,000 ft 3/min (708 m3/min) at 5-in (12.7-cm) water gage to about 55,000 ft3/min (1,557 m3/min) at 25-in (63.5-cm) fan-drift water gage.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)