The Oak Ridge National Laboratory (ORNL) has been involved in research and development related to improved performance of recuperators for industrial gas turbines since about 1996, and in improving recuperators for advanced microturbines since 2000. Recuperators are compact, high efficiency heat-exchangers that improve the efficiency of smaller gas turbines and microturbines. Recuperators were traditionally made from 347 stainless steel and operated below or close to 650°C, but today are being designed for reliable operation above 700°C. The Department of Energy (DOE) sponsored programs at ORNL have helped defined the failure mechanisms in stainless steel foils, including creep due to fine grain size, accelerated oxidation due to moisture in the hot exhaust gas, and loss of ductility due to aging. ORNL has also been involved in selecting and characterizing commercial heat-resistant stainless alloys, like HR120 or the new AL20-25+Nb, that should offer dramatically improved recuperator capability and performance at a reasonable cost. This paper summarizes research on sheets and foils of such alloys over the last few years, and suggests the next likely stages for manufacturing recuperators with upgraded performance for the next generation of larger 200–250 kW advanced microturbines.
Skip Nav Destination
ASME Turbo Expo 2005: Power for Land, Sea, and Air
June 6–9, 2005
Reno, Nevada, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4699-7
PROCEEDINGS PAPER
Overview of Creep Strength and Oxidation of Heat-Resistant Alloy Sheets and Foils for Compact Heat-Exchangers
Philip J. Maziasz,
Philip J. Maziasz
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
John P. Shingledecker,
John P. Shingledecker
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Bruce A. Pint,
Bruce A. Pint
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Neal D. Evans,
Neal D. Evans
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Yukinori Yamamoto,
Yukinori Yamamoto
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Karren More,
Karren More
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Edgar Lara-Curzio
Edgar Lara-Curzio
Oak Ridge National Laboratory, Oak Ridge, TN
Search for other works by this author on:
Philip J. Maziasz
Oak Ridge National Laboratory, Oak Ridge, TN
John P. Shingledecker
Oak Ridge National Laboratory, Oak Ridge, TN
Bruce A. Pint
Oak Ridge National Laboratory, Oak Ridge, TN
Neal D. Evans
Oak Ridge National Laboratory, Oak Ridge, TN
Yukinori Yamamoto
Oak Ridge National Laboratory, Oak Ridge, TN
Karren More
Oak Ridge National Laboratory, Oak Ridge, TN
Edgar Lara-Curzio
Oak Ridge National Laboratory, Oak Ridge, TN
Paper No:
GT2005-68927, pp. 1011-1022; 12 pages
Published Online:
November 11, 2008
Citation
Maziasz, PJ, Shingledecker, JP, Pint, BA, Evans, ND, Yamamoto, Y, More, K, & Lara-Curzio, E. "Overview of Creep Strength and Oxidation of Heat-Resistant Alloy Sheets and Foils for Compact Heat-Exchangers." Proceedings of the ASME Turbo Expo 2005: Power for Land, Sea, and Air. Volume 1: Turbo Expo 2005. Reno, Nevada, USA. June 6–9, 2005. pp. 1011-1022. ASME. https://doi.org/10.1115/GT2005-68927
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
Overview of Creep Strength and Oxidation of Heat-Resistant Alloy Sheets and Foils for Compact Heat Exchangers
J. Turbomach (October,2006)
Creep Strength and Microstructure of AL 20 - 25 + Nb Alloy Sheets and Foils for Advanced Microturbine Recuperators
J. Eng. Gas Turbines Power (July,2007)
Evaluation of Alumina-Forming Austenitic Foil for Advanced Recuperators
J. Eng. Gas Turbines Power (October,2011)
Related Chapters
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Engineering and Physical Modeling of Power Plant Cooling Systems
Thermal Power Plant Cooling: Context and Engineering