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    Laboratory Infrared Thermal Assessment of Laser-Sintered High-Pressure Nozzle Guide Vanes to Derisk Engine Design Programs

    Source: Journal of Turbomachinery:;2017:;volume( 139 ):;issue: 004::page 41009
    Author:
    Kirollos, Benjamin
    ,
    Povey, Thomas
    DOI: 10.1115/1.4035074
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The continuing maturation of metal laser-sintering technology (direct metal laser sintering (DMLS)) presents the opportunity to derisk the engine design process by experimentally down-selecting high-pressure nozzle guide vane (HPNGV) cooling designs using laboratory tests of laser-sintered—instead of cast—parts to assess thermal performance. Such tests could be seen as supplementary to thermal-paint test engines, which are used during certification to validate cooling system designs. In this paper, we compare conventionally cast and laser-sintered titanium alloy parts in back-to-back experimental tests at engine-representative conditions over a range of coolant mass flow rates. Tests were performed in the University of Oxford Annular Sector Heat Transfer Facility. The thermal performance of the cast and laser-sintered parts—measured using new infrared processing techniques—is shown to be very similar, demonstrating the utility of laser-sintered parts for preliminary engine thermal assessments. We conclude that the methods reported in this paper are sufficiently mature to make assessments which could influence engine development programs.
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      Laboratory Infrared Thermal Assessment of Laser-Sintered High-Pressure Nozzle Guide Vanes to Derisk Engine Design Programs

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4236051
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    contributor authorKirollos, Benjamin
    contributor authorPovey, Thomas
    date accessioned2017-11-25T07:19:50Z
    date available2017-11-25T07:19:50Z
    date copyright2017/18/1
    date issued2017
    identifier issn0889-504X
    identifier otherturbo_139_04_041009.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4236051
    description abstractThe continuing maturation of metal laser-sintering technology (direct metal laser sintering (DMLS)) presents the opportunity to derisk the engine design process by experimentally down-selecting high-pressure nozzle guide vane (HPNGV) cooling designs using laboratory tests of laser-sintered—instead of cast—parts to assess thermal performance. Such tests could be seen as supplementary to thermal-paint test engines, which are used during certification to validate cooling system designs. In this paper, we compare conventionally cast and laser-sintered titanium alloy parts in back-to-back experimental tests at engine-representative conditions over a range of coolant mass flow rates. Tests were performed in the University of Oxford Annular Sector Heat Transfer Facility. The thermal performance of the cast and laser-sintered parts—measured using new infrared processing techniques—is shown to be very similar, demonstrating the utility of laser-sintered parts for preliminary engine thermal assessments. We conclude that the methods reported in this paper are sufficiently mature to make assessments which could influence engine development programs.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleLaboratory Infrared Thermal Assessment of Laser-Sintered High-Pressure Nozzle Guide Vanes to Derisk Engine Design Programs
    typeJournal Paper
    journal volume139
    journal issue4
    journal titleJournal of Turbomachinery
    identifier doi10.1115/1.4035074
    journal fristpage41009
    journal lastpage041009-12
    treeJournal of Turbomachinery:;2017:;volume( 139 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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