scholarly journals Cooled silicon nitride stationary turbine vane risk reduction. Final report

1999 ◽  
Author(s):  
John Holowczak
Keyword(s):  
Silicon Nitride ◽  
Risk Reduction ◽  
Final Report ◽  
Turbine Vane

scholarly journals Cordierite silicon nitride filters. Final report

1992 ◽  
Author(s):  
J. Sawyer ◽  
B. Buchan ◽  
R. Duiven ◽  
M. Berger ◽  
J. Cleveland ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Final Report

scholarly journals Development of Cooled, Ceramic First Stage Vanes for the FT8 Aeroderivative Gas Turbine

1998 ◽  
Author(s):  
William H. Day ◽  
Konstantino Kouris ◽  
John E. Holowczak ◽  
Michael F. Blair ◽  
Steven E. Hale ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Cobalt Alloy ◽  
External Temperature ◽  
Core Flow ◽  
Probability Of Survival ◽  
Bill Of Materials ◽  
Turbine Vane ◽  
Final Design ◽  
Cooling Air ◽  
Fast Fracture

A design for an impingement cooled and vented silicon nitride turbine vane for potential application to the Pratt & Whitney/Turbo Power and Marine FT8 aeroderivative stationary turbine is presented. The final design reduced the cooling air requirement for this first stage turbine vane by several percent of total core flow, compared to the current cobalt alloy bill of materials airfoil. Careful attention to achieving uniform internal and external temperature distributions, and design of the trailing edge vests, were necessary to ensure a design having a high Probability of Survival. The NASA CARES code was used to determine probabilistic fast fracture reliability of the silicon nitride airfoil.

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