Advanced Rankine and Brayton cycle power systems - Materials needs and opportunitiesConceptual advanced potassium Rankine and closed Brayton power conversion cycles offer the potential for improved efficiency over steam systems through higher operating temperatures. However, for utility service of at least 100,000 hours, materials technology advances will be needed for such high temperature systems. Improved alloys and surface protection must be developed and demonstrated to resist coal combustion gases as well as potassium corrosion or helium surface degradation at high temperatures. Extensions in fabrication technology are necessary to produce large components of high temperature alloys. Long-time property data must be obtained under environments of interest to assure high component reliability.
Document ID
19740062634
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Grisaffe, S. J.
Guentert, D. C. (NASA Lewis Research Center Cleveland, Ohio, United States)