Heat Transfer Analysis for Improved In-situ Infrared Tempertaure Diagnostics in Microcombustors

Simple item page
dc.contributor.advisorCadou, Christopheren_US
dc.contributor.authorVeeraragavan, Ananthanarayananen_US
dc.contributor.departmentAerospace Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2006-06-14T06:04:49Z
dc.date.available2006-06-14T06:04:49Z
dc.date.issued2006-05-05en_US
dc.description.abstractThis thesis investigates heat transfer processes occurring in microcombustors. First, a simple 2D model is developed for predicting temperature profiles in a premixed laminar flame propagating between two parallel plates. The model is used to generate a correlation for the variation in Nusselt number with downstream distance which is useful for numerical simulations. It also shows that the temperature profile across the channel is well approximated using either 2nd or 4th order polynomials. Second, the functional form of the gas temperature profile is used to demonstrate a new diagnostic technique for making non-intrusive measurements of gas temperature and wall heat fluxes. The technique is applied in a silicon-walled microcombustor (5 cm x 2 mm x 5.5 cm). The gas temperature and wall heat flux measurements are combined with measurements of the wall temperature distribution to develop a complete picture of heat transfer in the microcombustor. The results show that thermal feedback from the post-flame to the pre-flame via the structure is the dominant heat transfer path in microcombustors.en_US
dc.format.extent2548378 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/3584
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Aerospaceen_US
dc.subject.pquncontrolledmicrocombustoren_US
dc.subject.pquncontrolledheat transferen_US
dc.subject.pquncontrolledparallel plateen_US
dc.subject.pquncontrolledinfrared diagnosticsen_US
dc.subject.pquncontrolledspectroscopyen_US
dc.titleHeat Transfer Analysis for Improved In-situ Infrared Tempertaure Diagnostics in Microcombustorsen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
umi-umd-3426.pdf
Size:
2.43 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Aerospace Engineering Theses and Dissertations