Jonas Peichl, Andreas Schwab, Markus Selzer, Hannah Böhrk, Jens von Wolfersdor

DOI Number XXX-YYY-ZZZ

Conference Number HiSST-2022-231

This paper presents the first results of a study of transpiration cooling in a segmented ceramic matrix
composite specimen resembling a subscale rocket engine combustion chamber. The tests were conducted with a hot air mainstream flow with a temperature of Thg = 800 K, and cold air as coolant. For
the first experiments, a variation of the blowing ratio of F = 0-0.75% was investigated, with constant
blowing over all segments. The increase of cooling efficiency with rising blowing ratio is demonstrated.
For the nozzle contoured segment, a significant increase of the wall temperature could be determined
for low blowing ratios, which can be attributed to cross-flows caused by the higher pressure gradient in
the expansion section.

Read the full paper >

In Categories: 1.Events, HiSST 2022, Thermal and Energy Management Systems
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.