This paper presents numerical analyses of coupled heat transfer for multi-hole cooling of an integrally woven ceramic matrix composite, suitable for use in a combustor liner. The results indicate potential benefit in expanding the current design space for the combustor liners to include shallow film injection angles, very small diameter film holes, and a film injection scheme that features opposing cooling jets. These features can be conveniently produced in integrally woven SiC-SiC ceramic composite panels to yield film effectivenesses that are significantly higher than the current technology that is based on super alloy panels. This has the potential for significant cooling air saving that can be re-introduced in the combustor dome region and result in lower NOx emissions.
- Heat Transfer Division and Electronic and Photonic Packaging Division
Multi-Hole Film Cooling With Integrally Woven SiC-SiC Ceramic Wall Panels
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Mehta, JM, Shouse, D, Neuroth, C, Marshall, D, & Cox, B. "Multi-Hole Film Cooling With Integrally Woven SiC-SiC Ceramic Wall Panels." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 3. San Francisco, California, USA. July 17–22, 2005. pp. 1-8. ASME. https://doi.org/10.1115/HT2005-72037
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