By Allen D. Houtz 1 My objective is to continue the discussion we began in the article Cascade, Feed Forward and Boiler Level Control. Here we explore the causes and cures of the dynamic shrink/swell phenomena in boilers.
By Allen D. Houtz 1 One common application of cascade control combined with feed forward control is in level control systems for boiler steam drums. The control strategies now used in modern industrial boiler systems had their beginnings on shipboard steam propulsion boilers. When boilers operated at low pressure, it was reasonably inexpensive to make […]