High-temperature-turbine technology program. Phase II. Technology test and support studies. Turbine spool technology rig, cascade tests
Integrated gas turbine combined cycle electric power generating systems offer the promise for using coal in an economic and environmentally acceptable manner. Powerplant efficiencies well above 40% may be achieved with gas turbine firing temperatures of 2600/sup 0/F and higher, if the turbine cooling requirements are not excessive. The US Department of Energy is sponsoring through the High Temperature Turbine Technology (HTTT) program, the development of advanced gas turbine components for such a system. The concept selected by Curtiss-Wright for this program utilizes transpiration air-cooling of the turbine subsystem airfoils. With moderate quantities of cooling air, this method of cooling has been demonstrated to be effective in a 2600/sup 0/F to 3000/sup 0/F gas stream. Test results show that transpiration air-cooling also protects turbine components from the aggressive environment produced by the combustion of coal-derived fuels. A new single-stage, high work transpiration air-cooled turbine has been designed and fabricated for evaluation in a rotating test vehicle designated the Turbine Spool Technology Rig (TSTR). Prior to operating the TSTR, a cascade test program was conducted on a 10-vane sector to determine the cooling characteristics of these parts and to develop changes as required to assure satisfactory operation of the TSTR. This report describes the cascade program, including several changes incorporated into the vanes.
- Research Organization:
- Curtiss-Wright Corp., Wood-Ridge, NJ (USA). Power Systems Div.
- DOE Contract Number:
- AC01-76ET10348
- OSTI ID:
- 5921075
- Report Number(s):
- DOE/ET/10348-T3; FE-2291-76A; CW-WR-76-020.76A; ON: DE81030352
- Country of Publication:
- United States
- Language:
- English
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High-temperature-turbine-technology program. Phase II. Technology test and support studies. Topical report. Turbine spool technology rig design, fabrication and initial test
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Related Subjects
200102* -- Fossil-Fueled Power Plants-- Power Cycles
200104 -- Fossil-Fueled Power Plants-- Components
AERODYNAMICS
COAL LIQUIDS
COMBINED-CYCLE POWER PLANTS
COOLING
DATA
DESIGN
ENERGY TRANSFER
ENGINES
EXPERIMENTAL DATA
FLUID MECHANICS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINE ENGINES
GASES
HEAT ENGINES
HEAT TRANSFER
INFORMATION
INTERNAL COMBUSTION ENGINES
LIQUIDS
LOW BTU GAS
MECHANICS
NUMERICAL DATA
POWER PLANTS
TEMPERATURE DISTRIBUTION
THERMAL POWER PLANTS
TURBINE BLADES
VERY HIGH TEMPERATURE