I had been feeling the blues, a combination of flu-like symptoms, couple of weird jobs at work, and the decrease of sunlight as we approach the beginning of winter. Nothing like southern blues by the ...

Compressible fluid flow through control valves will inevitably cause some form of flow-induced vibration in the fluid system. Identifying the type and cause of the vibration requires detective work.

PID loops are a central component of modulating boiler control systems with applications ranging from basic steam header pressure control to cascading 3-element drum level control. A modern ...