Investigation: Failure of a steam generator
11.01.2011
| Babakr, A., SABIC R&T, Jubail, Saudi Arabia; Bairamov, A., SABIC R&T, Jubail, Saudi Arabia
In case history, engineers search for root cause of water-side tube failures for a 23-year-old boiler
Keywords:
[boiler]
[corrosion]
[tube rupture]
[steam]
[creep rupture]
This case history investigated the water-wall tube failure of a boiler (steam generator) that had been in service. At this stage of the boiler’s life cycle, this steam generator was experiencing several leaks. The failed tubes were examined to uncover the root cause of the tubes’ bulging and leaks. The investigation results revealed that a 1-mm thick deposit in the inner surface of the water-wall tubes was the root cause for the tube failures.
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