YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASME
    • Journal of Turbomachinery
    • View Item
    •   YE&T Library
    • ASME
    • Journal of Turbomachinery
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    The Effects of Varying the Combustor-Turbine Gap

    Source: Journal of Turbomachinery:;2007:;volume( 129 ):;issue: 004::page 756
    Author:
    N. D. Cardwell
    ,
    K. A. Thole
    ,
    N. Sundaram
    DOI: 10.1115/1.2720497
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: To protect hot turbine components, cooler air is bled from the high pressure section of the compressor and routed around the combustor where it is then injected through the turbine surfaces. Some of this high pressure air also leaks through the mating gaps formed between assembled turbine components where these components experience expansions and contractions as the turbine goes through operational cycles. This study presents endwall adiabatic effectiveness levels measured using a scaled up, two-passage turbine vane cascade. The focus of this study is evaluating the effects of thermal expansion and contraction for the combustor-turbine interface. Increasing the mass flow rate for the slot leakage between the combustor and turbine showed increased local adiabatic effectiveness levels while increasing the momentum flux ratio for the slot leakage dictated the coverage area for the cooling. With the mass flow held constant, decreasing the combustor-turbine interface width caused an increase in uniformity of coolant exiting the slot, particularly across the pressure side endwall surface. Increasing the width of the interface had the opposite effect thereby reducing coolant coverage on the endwall surface.
    • Download: (836.0Kb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      The Effects of Varying the Combustor-Turbine Gap

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/136992
    Collections
    • Journal of Turbomachinery

    Show full item record

    contributor authorN. D. Cardwell
    contributor authorK. A. Thole
    contributor authorN. Sundaram
    date accessioned2017-05-09T00:26:05Z
    date available2017-05-09T00:26:05Z
    date copyrightOctober, 2007
    date issued2007
    identifier issn0889-504X
    identifier otherJOTUEI-28742#756_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/136992
    description abstractTo protect hot turbine components, cooler air is bled from the high pressure section of the compressor and routed around the combustor where it is then injected through the turbine surfaces. Some of this high pressure air also leaks through the mating gaps formed between assembled turbine components where these components experience expansions and contractions as the turbine goes through operational cycles. This study presents endwall adiabatic effectiveness levels measured using a scaled up, two-passage turbine vane cascade. The focus of this study is evaluating the effects of thermal expansion and contraction for the combustor-turbine interface. Increasing the mass flow rate for the slot leakage between the combustor and turbine showed increased local adiabatic effectiveness levels while increasing the momentum flux ratio for the slot leakage dictated the coverage area for the cooling. With the mass flow held constant, decreasing the combustor-turbine interface width caused an increase in uniformity of coolant exiting the slot, particularly across the pressure side endwall surface. Increasing the width of the interface had the opposite effect thereby reducing coolant coverage on the endwall surface.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleThe Effects of Varying the Combustor-Turbine Gap
    typeJournal Paper
    journal volume129
    journal issue4
    journal titleJournal of Turbomachinery
    identifier doi10.1115/1.2720497
    journal fristpage756
    journal lastpage764
    identifier eissn1528-8900
    treeJournal of Turbomachinery:;2007:;volume( 129 ):;issue: 004
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian