Ceramic stationary gas turbine

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:219517

Roode, M van

The performance of current industrial gas turbines is limited by the temperature and strength capabilities of the metallic structural materials in the engine hot section. Because of their superior high-temperature strength and durability, ceramics can be used as structural materials for hot section components (blades, nozzles, combustor liners) in innovative designs at increased turbine firing temperatures. The benefits include the ability to increase the turbine inlet temperature (TIT) to about 1200{degrees}C ({approx}2200{degrees}F) or more with uncooled ceramics. It has been projected that fully optimized stationary gas turbines would have a {approx}20 percent gain in thermal efficiency and {approx}40 percent gain in output power in simple cycle compared to all metal-engines with air-cooled components. Annual fuel savings in cogeneration in the U.S. would be on the order of 0.2 Quad by 2010. Emissions reductions to under 10 ppmv NO{sub x} are also forecast. This paper describes the progress on a three-phase, 6-year program sponsored by the U.S. Department of Energy, Office of Industrial Technologies, to achieve significant performance improvements and emissions reductions in stationary gas turbines by replacing metallic hot section components with ceramic parts. Progress is being reported for the period September 1, 1994, through September 30, 1995.

• Research Organization: Solar Turbines, Inc., San Diego, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-92CE40960
• OSTI ID: 219517
• Report Number(s): DOE/CE/40960--96/C0648; CONF-9510109--8; ON: DE96008914
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
CERAMICS
COMBUSTORS
EMISSION
GAS TURBINES
LINERS
MECHANICAL PROPERTIES
NITROGEN OXIDES
NOZZLES
SERVICE LIFE
SILICON CARBIDES
SILICON NITRIDES
STRESSES
THERMAL EFFICIENCY
TURBINE BLADES