Investigation of the Triggering Factors that Affect the Bulge Height Estimation of SA213T91 Boiler Tube

Bulging height estimation is a promising approach for ensuring the safe and flexible operation of power plants. It is vital study for detecting bulging and bursting boiler tube failures in many industrial sectors. This research study focuses on creep deformation and overheating problems of boiler tubes, intending to create helpful forecasts. This investigation includes insights from real-world instances involving high-pressure and metal temperature bulging failures in SA213T91 tertiary superheater tubes in thermal power plants. Advanced techniques used to measure overheating incidents at a 660-MW thermal power facility revealed correlation between triggering factors of bulging tube failure and bulge height. Industries can implement preventative measures to avoid costly downtime and potential safety hazards by understanding the factors contributing to boiler tube failure. These findings emphasize the importance of these techniques for predicting bulge height. It is influenced by tube material properties such as hardness, ductility, hoop stress and temperature resistance. This study helps to understand material behavior and identify and confirm the role of triggering factors in bulging tube failure, enhancing tube life at high temperatures. Finally, research findings reveal that creep and overheating weaken tube walls, leading to bulging tube collapse. Bulge height measurements, scanning electron microscopy, optical microscopy and energy-dispersive X-ray spectroscopy were performed on bulged, deformed and undeformed sections after bulging tube failure for various reasons. It explores the relationships among material properties, triggering factors and high-temperature tube failure. Monitoring factors and estimating bulge height to anticipate failure further helps in understanding tube life in high-temperature environments.