AGT101 - Ceramic gas turbine development

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6041799

Boyd, G L; Easley, M L; Kreiner, D M

A major technical effort has resulted in recent testing of the all-ceramic hot section in the DOE/NASA sponsored AGT101 Advanced Gas Turbine. This testing was preceded by critical component developments including ceramic structures design evolution to satisfactorily pass the peak stress start transients with 25-percent margin. The most challenging ceramic component, the turbine rotor, has undergone successful fabrication development, but further process and material development are necessary to meet the high temperature durability goals. The 100-hour engine test of the ceramic structures to 2100F (1149C), and the later 85-hour engine test of the all-ceramic hot section to 2200F (1204C) have been important program accomplishments. Full speed operation to 100,000 rpm and a ceramic rotor tip speed of 2300 ft/sec (701 m/s) has been demonstrated. The ability of these experimental gas turbines to operate in a regime where the unique properties of structural ceramics can be exploited offers the opportunity to further advance ceramic technology.

• OSTI ID: 6041799
• Report Number(s): CONF-870505-
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CERAMICS
COMBUSTORS
DESIGN
ENGINES
FABRICATION
GAS TURBINE ENGINES
HEAT ENGINES
HEAT EXCHANGERS
INTERNAL COMBUSTION ENGINES
MATERIALS TESTING
OPERATION
PHYSICAL PROPERTIES
ROTORS
SEALS
STRESSES
TESTING
THERMAL STRESSES
THERMODYNAMIC PROPERTIES
VELOCITY
VERY HIGH TEMPERATURE