The SPRD is used on zone systems when the automatic closing of various zone dampers can create an excessive increase in airpressure and velocity throughout the duct system.
SPRD旁通阀是当各种区域风门自动关闭时用在区域系统中,可以在管道系统中增加空气压力盒速度。
2
Dynamic pressure is a function of velocity and air density, which in turn is dependant upon altitude and temperature.
动态压力是一个功能的速度和空气密度,而这又是取决于海拔高度和温度。
3
The results showed that mass mean diameter (MMD), and drop size distribution parameter N changed with pressure drop, airvelocity, and fuel viscosity.