Simulations of multi-phase particle deposition on endwall film-cooling

Seth A. Lawson, Karen Ann Thole

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Scopus citations


    Demand for clean energy has increased motivation to design gas turbines capable of burning alternative fuels such as coal derived synthesis gas (syngas). One challenge associated with burning coal derived syngas is that trace amounts of particulate matter in the fuel and air can deposit on turbine hardware reducing the effectiveness of film cooling. For the current study, a method was developed to dynamically simulate multi-phase particle deposition through injection of a low melting temperature wax. The method was developed so the effects of deposition on endwall film cooling could be quantified using a large scale vane cascade in a low speed wind tunnel. A microcrystalline wax was injected into the mainstream flow using atomizing spray nozzles to simulate both solid and molten particulate matter in a turbine gas path. Infrared thermography was used to quantify cooling effectiveness with and without deposition at various locations on a film cooled endwall. Measured results indicated reductions in adiabatic effectiveness by as much as 30% whereby the reduction was highly dependent upon the location of the film-cooling holes relative to the vane.

    Original languageEnglish (US)
    Title of host publicationASME Turbo Expo 2010
    Subtitle of host publicationPower for Land, Sea, and Air, GT 2010
    Number of pages12
    EditionPARTS A AND B
    StatePublished - Dec 1 2010
    EventASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010 - Glasgow, United Kingdom
    Duration: Jun 14 2010Jun 18 2010

    Publication series

    NameProceedings of the ASME Turbo Expo
    NumberPARTS A AND B


    OtherASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010
    Country/TerritoryUnited Kingdom

    All Science Journal Classification (ASJC) codes

    • Engineering(all)


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