Advanced Boiler (BA) case studies
Advanced Boiler (BA) · Put your knowledge to work in context.
The Advanced Boiler (BA) credential is a professional certification for experienced boiler operators who have moved beyond basic firing and water-level routines and now carry responsibility for larger, higher-pressure equipment. It suits chief operators, shift engineers, and maintenance leads in industrial plants, hospitals, district energy systems, and process facilities where steam reliability and safety are critical. The Advanced Boiler (BA) case studies are 5 cases and about 2,454 words.
1Drum Level Swell After a Step Load Increase
A 480 t/h natural-circulation watertube boiler at 8.6 MPa drum pressure is carrying 410 t/h at steady state with three-element control (steam flow, feedwater flow, drum level) in automatic. The dispatcher requests a 40 t/h step increase in steam flow within two minutes.
512 words, about 3 min2Opacity Spike and Air Heater Cold-End Fouling
A 250 MW pulverized-coal unit burning a medium-sulfur bituminous coal shows stack opacity climbing from 8% to 22% over three days. The electrostatic precipitator is at 92% collection efficiency, down from 99%.
489 words, about 2 min3Hydrostatic Test Decision on a Repaired Superheater Header
A shop has completed a weld repair on a superheater outlet header of a 12.4 MPa design-pressure boiler. The repair replaced a 300 mm section of the header shell.
493 words, about 2 min4Feedwater Quality Excursion and Drum Carryover
A 300 t/h industrial boiler with a drum pressure of 6.2 MPa operates on a makeup of 40% demineralized water and 60% condensate return. At 06:00 the condensate return begins carrying a process contaminant: cation conductivity rises from 0.15 to 1.8 µS/cm, sodium rises from 3 to 45 ppb, and the drum blowdown conductivity climbs.
458 words, about 2 min5Flame Scanner Failure During Low-Load Operation
A gas-fired packaged boiler with a single burner and a flame scanner is running at 25% load to hold plant steam during a production lull. The burner management system annunciates a flame scanner fault - the scanner is reading no flame intermittently, roughly once every 90 seconds, while the burner is visibly lit and steam pressure is stable.
502 words, about 3 min