Compatibility of gas turbine materials with steam cooling [electronic resource].
- Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1995.
- Physical Description:
- pages 452-464 : digital, PDF file
- Additional Creators:
- United States. Department of Energy. Office of Energy Efficiency and Renewable Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Gas turbines had been traditionally used for peak load plants and remote locations as they offer advantage of low installation costs and quick start up time. Their use as a base load generator had not been feasible owing to their poor efficiency. However, with the advent of gas turbines based combined cycle plants (CCPs), continued advances in efficiency are being made. Coupled with ultra low NOₓ emissions, coal compatibility and higher unit output, gas turbines are now competing with conventional power plants for base load power generation. Currently, the turbines are designed with TIT of 2300°F and metal temperatures are maintained around 1700°F by using air cooling. New higher efficiency ATS turbines will have TIT as high as 2700°F. To withstand this high temperature improved materials, coatings, and advances in cooling system and design are warranted. Development of advanced materials with better capabilities specifically for land base applications are time consuming and may not be available by ATS time frame or may prove costly for the first generation ATS gas turbines. Therefore improvement in the cooling system of hot components, which can take place in a relatively shorter time frame, is important. One way to improve cooling efficiency is to use better cooling agent. Steam as an alternate cooling agent offers attractive advantages because of its higher specific heat (almost twice that of air) and lower viscosity.
- Report Numbers:
- E 1.99:doe/metc--96/1023-vol.2
E 1.99: conf-9510109--vol.2
- Other Subject(s):
- Published through SciTech Connect.
Advanced turbine systems (ATS) annual review, Morgantown, WV (United States), 17-18 Oct 1995.
Desai, V.; Tamboli, D.; Patel, Y.
USDOE Morgantown Energy Technology Center, WV (United States)
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