Control of Acoustic Energy Input for Cleaning of Industrial Boilers

A non-intrusive cleaning method for boiler tubes at Sasol Synfuels power station Secunda, in the Mpumalanga province of South Africa, is preferred over conventional methods that require shutdown. The elected utilizes sound energy waves, produced by an acoustic horn. Due to nature propagation and effectiveness required, there a requisite control operate sonic If horn’s frequency too low, it will produce higher waves resonate with plant’s harmonious cause structural damage. Conversely, if high, excessive noise levels may be reached annoy plant personnel. To prevent these undesirable outcomes posed adopting cleaning, needs regulatory system incorporated into configuration mitigate vibrations limit noise. comprises drives as intended through set point. designed meets anticipated requirements, such has ideal transient response 0.562 s, steady-state error achieved 1.05 0.201% overshoot, most importantly closed-loop stable.