Performance of high-temperature materials for efficient power plants

The waterside challenge

Research output: Contribution to journalArticleScientificpeer-review

Abstract

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.

Original languageEnglish
Article number031009
JournalJournal of Nuclear Engineering and Radiation Science
Volume2
Issue number3
DOIs
Publication statusPublished - 1 Jul 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

refractory materials
power plants
Power plants
oxidation
turbogenerators
oxidation resistance
Bearings (structural)
ductility
corrosion
cracks
Thermooxidation
Oxidation resistance
Temperature
Ductility
Crack propagation
Corrosion
Oxidation

Cite this

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title = "Performance of high-temperature materials for efficient power plants: The waterside challenge",
abstract = "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.",
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Performance of high-temperature materials for efficient power plants : The waterside challenge. / Auerkari, Pertti; Yli-Olli, Sanni; Penttilä, Sami; Tuurna, Satu; Pohja, Rami.

In: Journal of Nuclear Engineering and Radiation Science, Vol. 2, No. 3, 031009, 01.07.2016.

Research output: Contribution to journalArticleScientificpeer-review

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