ventilation efficiency

Up to now, more and more highway and railway tunnels generally use the jet flow type longitudinal system, Although the jet flow ventilation system has many merits, its ventilation efficiency to be low, is only 15%.

目前，公路、铁路隧道普遍采用纵向式射流通风，虽然射流通风系统具有很多优点，但射流通风效率较低，一般仅为15%左右。

Measures the ventilation efficiency of the displacement ventilation systems for an office room, an assembly room and a gymnasium.

对办公室、会议室及体育馆置换通风系统的通风效率进行了实测。

Thermal efficiency on different devices employed in the hot air ventilation of tea drier

茶叶烘干机不同进风方式的热效率研究

Garage Ventilation: More light wells and ventilation wells to increase scavenging efficiency and input fresh air.

○通风车库设计: 通过增加地下车库的采光井和换气井的数量,提高了地下车库的换气效率,使得在地下车库中也可以呼吸到室外自然空气.

To ensure ventilation and raise cooling efficiency, please mount the ballast vertically.

为了保证机壳内部空气流通,提高散热效率, 请垂直放置镇流器.