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Development and Test of Oxide/Oxide CMC Combustor Liner Demonstrators for Aero Engines

Behrendt, Thomas and Hackemann, Stefan and Mechnich, Peter and Shi, Yuan and Hönig, Sandrine and Hofmann, Severin and Koch, Dietmar (2016) Development and Test of Oxide/Oxide CMC Combustor Liner Demonstrators for Aero Engines. In: Proceedings of the ASME Turbo Expo, pp. 1-12. ASME. ASME Turbo Expo, 13.-17. Juni 2016, Seoul, Südkorea. DOI: 10.1115/GT2016-57323

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Abstract

Ceramic matrix composites (CMC) offer the potential of increased service temperatures and are thus an interesting alternative to conventional combustor alloys. Tubular combustor liner demonstrators made of an oxide/oxide CMC were developed for a lean combustor in a future aero-engine in the medium thrust range and tested at engine conditions. During the design various aspects like protective coating, thermo-mechanical design, development of a failure model for the CMC as well as design and test of an attachment system were taken into account. The tests of the two liners were conducted at conditions up to 80% take-off. A new protective coating was tested successfully with a coating thickness of up to t=1 mm. Different inspection criteria were derived in order to detect crack initiation at an early stage for a validation of the failure model. With the help of detailed pre- and post-test computer tomography scans to account for the micro structure of the CMC the findings of the failure model were in reasonable agreement with the test results.

Item URL in elib:https://elib.dlr.de/104807/
Document Type:Conference or Workshop Item (Speech)
Title:Development and Test of Oxide/Oxide CMC Combustor Liner Demonstrators for Aero Engines
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Behrendt, ThomasThomas.Behrendt (at) dlr.dehttps://orcid.org/0000-0002-4154-3277
Hackemann, StefanStefan.Hackemann (at) dlr.deUNSPECIFIED
Mechnich, PeterPeter.Mechnich (at) dlr.deUNSPECIFIED
Shi, Yuanyuan.shi (at) dlr.deUNSPECIFIED
Hönig, Sandrinesandrine.hoenig (at) dlr.deUNSPECIFIED
Hofmann, SeverinSeverin.Hofmann (at) dlr.deUNSPECIFIED
Koch, DietmarDietmar.Koch (at) dlr.dehttps://orcid.org/0000-0003-4504-8721
Date:13 June 2016
Journal or Publication Title:Proceedings of the ASME Turbo Expo
Refereed publication:Yes
Open Access:No
In DOAJ:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1115/GT2016-57323
Page Range:pp. 1-12
Publisher:ASME
Series Name:Proceedings of Turbo Expo
Status:Published
Keywords:Ceramic matrix composites, protective coating, combustor liner design, attachment system, combustor testing, computer tomography, failure model
Event Title:ASME Turbo Expo
Event Location:Seoul, Südkorea
Event Type:international Conference
Event Dates:13.-17. Juni 2016
Organizer:ASME IGTI
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Combustion Chamber Technologies
Location: Köln-Porz , Stuttgart
Institutes and Institutions:Institute of Propulsion Technology > Combustor
Institute of Structures and Design > Ceramic Composite Structures
Institute of Materials Research > Structurel and functional ceramics
Institute of Materials Research > Experimental and Numerical Methods
Deposited By: Behrendt, Dr.-Ing. Thomas
Deposited On:12 Jul 2016 12:40
Last Modified:05 Feb 2018 11:07

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