Thermal barrier coating on high temperature industrial gas turbine engines
This study program identified significant benefits from applying thermal barrier coatings to hot section components of high temperature industrial gas turbine engines. The thermal barrier coating used in this study was a yttria-stabilized zirconia material with a NiCrAlY undercoat, and the base engine used to establish improvements was the P and WA FT50A-4 industrial gas turbine engine. The design benefits of thermal barrier coatings include simplified cooling schemes and the use of conventional alloys in the engine hot section. Cooling flow reductions and improved heating rates achieved with thermal barrier coating result in improved performance. Economic benefits include reduced power production costs and reduced fuel consumption. Over the 30,000 hour life of the thermal barrier coated parts, fuel savings equivalent to $5 million are projected and specific power (megawatts/mass of engine airflow) improvements on the order of 13 percent are estimated. A research and evaluation program to develop thermal barrier coating technology is recommended. The program plan culminates in an industrial gas turbine engine demonstration of the potential benefits of thermal barrier coatings.
- Research Organization:
- United Technologies Corp., South Windsor, Conn. (USA). Power Systems Div.; Pratt and Whitney Aircraft, East Hartford, Conn. (USA)
- OSTI ID:
- 5274567
- Report Number(s):
- ERDA/NASA-0067/77/1; NASA-CR-135147; PSD-R-109
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Thermal barrier coating life-prediction model development. Annual report no. 2
Related Subjects
COMBINED-CYCLE POWER PLANTS
GAS TURBINES
FOSSIL-FUEL POWER PLANTS
PERFORMANCE TESTING
RESEARCH PROGRAMS
TURBINE BLADES
COATINGS
ALUMINIUM ALLOYS
CHROMIUM ALLOYS
COST
ENERGY CONSERVATION
FUEL CONSUMPTION
HEAT TRANSFER
HIGH TEMPERATURE
NICKEL ALLOYS
THERMAL INSULATION
YTTRIUM OXIDES
ZIRCONIUM OXIDES
ALLOYS
CHALCOGENIDES
ENERGY CONSUMPTION
ENERGY TRANSFER
OXIDES
OXYGEN COMPOUNDS
POWER PLANTS
TESTING
THERMAL POWER PLANTS
TRANSITION ELEMENT COMPOUNDS
TURBINES
TURBOMACHINERY
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
200104* - Fossil-Fueled Power Plants- Components
200102 - Fossil-Fueled Power Plants- Power Cycles