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在运输隧道中采用串联型式的通风系统能够节约大量的能源。为此计算一下采用了间距为800米通风管道的双线隧道的节能潜力。当运输隧道考虑采用缩短线路或使货运更为流畅的办法来节约能源(燃料或电)的时候,设计节能的通风系统也是不容忽视的。在一个单位长度dL的空气管道中由于摩擦而产生的单元压力损失为dp。dp=f(ρ/2D)w~2dL (N/m~2) (1)
The use of tandem ventilation systems in transport tunnels can save a lot of energy. To do this, take a look at the potential for energy savings in a two-lane tunnel that uses ventilation pipes spaced 800 meters apart. When transport tunnels consider saving energy (fuel or electricity) by shortening routes or making freight more fluid, designing energy-efficient ventilation systems can not be ignored. The unit pressure loss due to friction in an air duct of unit length dL is dp. dp = f (ρ / 2D) w ~ 2dL (N / m ~ 2) (1)