Life Assessment of Super Heater and Reheater Tubes through Steam Side Oxide Scale Measurements-CPRI Experience
##plugins.themes.academic_pro.article.main##
Abstract
High temperature pressure parts of boilers where in creep is the major damage mechanism, are required to be assessed periodically (after 100000 hrs) for remaining life. Creep life estimation could be made by destructive and non destructive techniques. This paper highlights the use of ultrasonic technique for assessment of creep life of SH/RH tubes by in-situ steam side oxide scale measurement. The scope for future studies are also given in the paper.
##plugins.themes.academic_pro.article.details##
How to Cite
Kumar, R. K., Nagaraja Rao, V. N., & Seetharamu, S. (2004). Life Assessment of Super Heater and Reheater Tubes through Steam Side Oxide Scale Measurements-CPRI Experience. Power Research - A Journal of CPRI, 79–83. Retrieved from https://cprijournal.in/index.php/pr/article/view/991
References
- Viswanathan, R., “Damage Mechanisms and Life Assessment of High Temperature Components”, ASM International, Metals Park, Ohio, pp 225-240, 1989.
- Barry Dooley & Warren McNaughton, “Boiler Tube Failures: Theory and Practice”, EPRI Volume I: Boiler Tube Fundamentals, Chapter 8, 1996.
- Vinod Choudhary, “Boiler Tube Failure - An NTPC Experience”, Inti. Conf. On Power Plant Operation & Efficiency, NewDelhi, Feb. 8-10, 2000.
- Wardle, T.J., “Creep - Rupture Assessment of Super Heater Tubes using Nondestructive Oxide Thickness Measurement”, ICOLM & Life Extension of Power Plant, Xi’an, P.R. China, (2000).
- Viswanathan, R., Foulds, J.R. and Roberts, D.A., “Methods for Estimating the Temperature of Reheater and Super heater Tubes in Fossil Boilers”, Proceedings of International Conference on Life Extension and Assessment, The Hague, June 1988.
- Rehn, I.M. and Apblett, W., “Corrosion problems in coal fired fossil boiler SH & RH tubes”. Report CS 1811, EPRI. 1981.