Steam Turbine Materials and Corrosion.

Ziomek-Moroz, M. D. ; Holcomb, G. R. ; Alman, D. E.

Technical Information Center Oak Ridge Tennessee

关键词: Steam oxidation;    Steam turbines;    Alloys;    Coal;    Efficiency;   

RP-ID  :  DE2008916964

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Ultra-supercritical (USC) power plants offer the promise of higher efficiencies and lower emissions. Current goals of the U.S. Department of Energy's Advanced Power Systems Initiatives include power generation from coal at 60% efficiency, which would require steam temperatures of up to 760DGC. This project examines the steamside oxidation of candidate alloys for use in USC systems, with emphasis placed on applications in high- and intermediate-pressure turbines. As part of this research a concern has arisen about the possibility of high chromia evaporation rates of protective scales in the turbine. A model to calculate chromia evaporation rates is presented.