The modernizations,or retrofits of steam turbines, have been a&nbsp;very active in the power industry since 2000, with a lareg percentage of fossil and nuclear units&nbsp;already implementing these major projects.&nbsp; Past typical drivers were efficiency improvement, increased output, and life extension.&nbsp;This presentation will highlight&nbsp;recent trends in the industry in the USA in light of a shift away from fossil-fuels.&nbsp; Owners of steam turbines should consider implementing&nbsp;a modernization to reap the benefits that these&nbsp;provide.Keys areas of the presentation will be on:1. Replacment Steam Turbine Components as Maintenance Spares - steam turbine owners are choosing the lower cost solutions of repairs and replacement to keep their units operating to thier targetted end of life.2.&nbsp;Brownfield Exchange Steam Turbine-Generator Installations - a full unit sxchange approach for aged equipment.&nbsp; A recent project will be highlighted.3. Nuclear Steam Turbine Retrofits - supporting the nuclear industry achieve license extensions and maintain this carbon-free generating source.&nbsp; This segment of the industry remains strong to get the "late adopters" upgraded.4. Combined Cycle Stteam Turbine Modernizations - as these fleets surpass 20 years of operation, there are a number of drivers that make a modernization a viable option in this segment.Some of the technical and project challenges will be included in the presentation, such as torsional issues of mixing new components with old, re-using LP inner cyclinders, and changing steam conditions and the effects on the steam path, risks of different apporaches.

Steam Turbine Modernizations: Recent Trends in the Greening World

Paper Proceedings: https://asmedigitalcollection.asme.org/POWER/POWER2021/volume/85109

ASME 2021 Power Conference (POWER2021)

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