Development and performace evaluation of a combustor with silicon carbide microchannel cooling

ABSTRACT

This study developed a combustor with silicon carbide (SiC) microchannels cooling (SiC MC) at the walls by the motivation of the excellent physical properties of SiC and its promising application in aerospace areas. Its thermal and combustion performance was experimentally explored by the comparison of a combustor with stainless steel microchannel cooling (STS MC). Results showed that the combustor with SiC MC induced much more complete combustion, an 18–20% increase in combustion efficiency, and a 5.3–5.6% decrease in CO emissions than the STS MC counterpart. Besides, the effects of coolants on the performance of combustor with SiC MC were also evaluated.

KEYWORDS:

• Combustor
• microchannel cooling
• SiC microchannels
• regenerative cooling

Acknowledgments

This study is financially supported under the Grants of the National Natural Science Foundation of China (No. 51775464) and is partially supported by the Basic Research Projects of Shenzhen Research & Development Fund (No. JCYJ20200109112808109).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the grants of the National Natural Science Foundation of China [No.51775464].