Brittle Materials Design, High Temperature Gas Turbine. Volume I
Abstract
A highlight summary of the work conducted by Westinghouse from July 1971 to June 1976, on the Defense Advanced Research Projects Agency (DARPA) sponsored program, 'Brittle Materials Design, High Temperature Gas Turbines,' is presented. The Westinghouse portion of the program entitled, 'Stationary Turbine Project,' was concerned with the development of ceramic design and materials technology for large, electric, power-generating, combustion turbines. Major incentives for the use of ceramic components in these turbines include significant improvements in the overall efficiency of power conversion through higher operating temperatures and minimum cooling requirements and extended component life through greater resistance to corrosion/erosion with a variety of fuels. The first stage ceramic stator vane with associated support hardware was chosen as the principal developmental objective. A test demonstration of design concepts and materials feasibility was achieved in a high temperature static rig at a peak vane temperature of 2500 F. Two series of 100 duty cycle testing to represent peaking turbine operation at 0.8 turbine simulation were performed at 2200 and 2500 F, respectively. The three piece vane assembly design concept was confirmed as viable and hot pressed silicon nitride emerged as the best candidate ceramic material for structural turbine applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1976
- Accession Number
- ADA045104
Entities
People
- Donald G. Miller
- Raymond J. Bratton
Organizations
- Ford Motor Company