Effect of Hydrostatic Testing Pressure on High-temperature Fatigue Life of Boiler Wall Tubes

Boiler wall tubes are important components in boilers for safe and efficient operation. After service exposure, boiler wall tubes often require replacement or repair, in which new sections of boiler tubes are welded onto the old boiler walls. Following the repair welding, the code requires the boiler be hydrostatic tested before putting the boiler back to service. Our long-term objective is to develop a safe boiler tube hydrostatic test standard. Our short-term objective is to measure the effect of pressure test on welded and repaired boiler wall tube performance.

Faculty Supervisor:

Leijun Li


Nitin Saini;Suvan Dev Choudhury


Suncor Energy Inc


Engineering - chemical / biological



University of Alberta



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