NASA LogoNTRSNTRS - NASA Technical Reports ServerSearchmore_vertCollectionsAboutNewsHelpLogin Back to ResultsChallenges to Laser-Based Imaging Techniques in Gas Turbine Combustor Systems for Aerospace ApplicationsIncreasingly severe constraints on emissions, noise and fuel efficiency must be met by the next generation of commercial aircraft powerplants. At NASA Lewis Research Center (LeRC) a cooperative research effort with industry is underway to design and test combustors that will meet these requirements. To accomplish these tasks, it is necessary to gain both a detailed understanding of the combustion processes and a precise knowledge of combustor and combustor sub-component performance at close to actual conditions. To that end, researchers at LeRC are engaged in a comprehensive diagnostic investigation of high pressure reacting flowfields that duplicate conditions expected within the actual engine combustors. Unique, optically accessible flame-tubes and sector rig combustors, designed especially for these tests. afford the opportunity to probe these flowfields with the most advanced, laser-based optical diagnostic techniques. However, these same techniques, tested and proven on comparatively simple bench-top gaseous flame burners, encounter numerous restrictions and challenges when applied in these facilities. These include high pressures and temperatures, large flow rates, liquid fuels, remote testing, and carbon or other material deposits on combustor windows. Results are shown that document the success and versatility of these nonintrusive optical diagnostics despite the challenges to their implementation in realistic systems.Document ID19980236867Acquisition SourceLegacy CDMSDocument TypeReprint (Version printed in journal)AuthorsLocke, Randy J.*(DYNACS Engineering Co., Inc. Brook Park, OH United States)*Anderson, Robert C.*(NASA Lewis Research Center Cleveland, OH United States)*Zaller, Michelle M.*(NASA Lewis Research Center Cleveland, OH United States)*Hicks, Yolanda R.*(NASA Lewis Research Center Cleveland, OH United States)*Date AcquiredSeptember 6, 2013Publication DateSeptember 1, 1998Subject CategoryAircraft Propulsion And PowerReport/Patent NumberE-11368AIAA Paper 98-2778NAS 1.15:208649NASA/TM-1998-208649Meeting InformationMeeting: Advanced Measurement and Ground Testing Technology ConferenceLocation: Albuquerque, NMCountry: United StatesStart Date: June 15, 1998End Date: June 18, 1998Sponsors:American Inst. of Aeronautics and AstronauticsFunding Number(s)PROJECT: RTOP 537-05-20Distribution LimitsPublicCopyrightWork of the US Gov. Public Use Permitted.Available DownloadsNameType19980236867.pdfSTIcloud_downloadcontent_copyvisibilityRelated RecordsThere are no records associated with this record.visibility_offNo Preview Available
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