Innovative SiC-SiC Multi-Hole Cooled Liner Technology for IHPTET Trapped Vortex Combustor (TVC) Concept

"The Airforce IHPTET program represents a quantum leap in the gas turbine technology such that it features truly revolutionary advances. These advances comprise increased cycle pressures and temperatures, near stoicheometric combustion, increased strengthceramic matrix composites, and the use of super alloys. In concert with these IHPTET goals, the novel approach described herein features a newly developed Trapped Vortex Combustor (TVC), and the application of a multi-hole cooled SiC-SiC Ceramic MatrixComposite (CMC) as the combustor liner material. In Phase I of the effort, we propose to develop an optimized liner-cooling scheme for the 12 in. TVC combustor model to be tested (Testing will be proposed in Phase 2) in AFOSR, Room 20 facility. Theliner will feature the, Rockwell developed, integrally woven, CMC fabric weave technology, and GEAE design practices used for effecting multi-hole cooling. In particular, the development of the weave technology will focus on salient barrier issues, as itsapplication to IHPTET combustors is relatively recent. After having developed the TVC specific interwoven CMC liner technology, we will design a set of two liners and the test rig for high pressure sector testing to be carried out in Phase 2 of theprogram. A TVC combustor with SiC-SiC CMC liner is expected to have far reaching implications than just the enhanced IHPTET system performance. Despite, superior performance of the TVC combusto