OTHER INDUSTRIES DeltaV TM System Improves Boiler Operation, Efficiency for Norfolk Southern RESULTS ?Eliminated manual control intervention ?Improved safety ?Reduced oxygen levels in stacks ?Reduced engineering cost ?Reduced maintenance costs ?Improved process control and performance ?Increased process information ?Increased data for enterprise management APPLICATION Boiler control CUSTOMER Norfolk Southern Corp., Roanoake, Virginia, USA CHALLENGE Limitations of the old controller at Norfolk Southern Roanoake, VA locomotive shop’s four 1950s vintage, stoker-fed, coal-fired boilers made changes and efficient operation difficult. For example, when two units operated at the same time, only one could be managed automatically. The other had to be controlled manually with loads fluctuating

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