How to advance your boiler control system? (Energy Efficiency Tip of the Day)
Tip summary • An alternative to complex linkage designs, modern burners are increasingly using servomotors with parallel positioning to independently control the quantities of fuel and air delivered to the burner head. • Controls without linkages allow for easy tune-ups and minor adjustments, while eliminating hysteresis, or lack of retraceability, and provide accurate point-to-point control. • These controls provide consistent performance and repeatability as the burner adjusts to different firing rates. Variable frequency drives (VFDs) can also be used to more accurately control the air supply. • Other technologies included in combustion controls are metered control, cross limited control and oxygen and carbon monoxide trim controls. • Advanced boiler controls are generally one of the first energy-efficiency measures a facility will implement to improve boiler energy efficiency. Proposed actions o Review your current control system o Determine the areas to implement advanced process control (APC) and the expected savings. o Evaluate the economics of the required changes. Economics o System retrofit will have low to medium cost but quick ROI. Savings o Estimated energy savings range: 3% of boiler energy use. Conclusion o Advanced boiler controls: savings of 3% of boiler energy use. o Please share this tip with others to share knowledge and increase energy efficiency awareness. o Please contact me for any advice or support about this issue or other energy management issues. My blog: www.360proactiveengineer.com #Energy #energyefficiency #energymanagement #steam #steamsystem #sustainable #sustainability #engineering #engineer #chemicalengineering #dearator #360practiveengineer #controlsystem
