Supercritical (SC) service at high operating values aims for good plant efficiency, but the waterside oxidation resistance can then become life-limiting. In this paper, selected materials and modeling options are compared for life assessment under waterside SC oxidation, particularly for thermal power plants that increasingly need to accommodate cyclic service, fast ramping, and low minimum loads to an extent to which the conventional design practices and materials solutions only partially accounted. For example, the life reduction by high-temperature oxidation and corrosion via lost load-bearing wall thickness is more easily accommodated than the impact on crack growth or material ductility.
Performance of High-Temperature Materials for Efficient Power Plants: The Waterside Challenge
Manuscript received May 31, 2015; final manuscript received February 3, 2016; published online June 17, 2016. Assoc. Editor: Thomas Schulenberg.
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Auerkari, P., Yli-Olli, S., Penttilä, S., Tuurna, S., and Pohja, R. (June 17, 2016). "Performance of High-Temperature Materials for Efficient Power Plants: The Waterside Challenge." ASME. ASME J of Nuclear Rad Sci. July 2016; 2(3): 031009. https://doi.org/10.1115/1.4032783
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