Feedwater control valves play a critical role in boiler operation. One important parameter of their design is the pressure drop at the rated condition as well as off-design conditions. However, ...

Anyone who has attempted to measure the pressure drop of a filter mounted in a filter grille will admit it’s a challenge. Some installations have a significant amount of return duct between the filter ...

Since the early days of mechanical aviation, airplanes have used air pressure to determine altitude. Because pressure always decreases with height, a little knowledge about temperature and humidity ...