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نویسندگان مقالات پربازدید :
علوم تجربی حرارتی و سیالات 2011
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • non-uniform velocity profile mechanism for flame stabilization in a porous radiant burner

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 993
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     industrial processes where the heating of large surfaces is required lead to the possibility of using large surface porous radiant burners. this causes additional temperature uniformity problems, since it is increasingly difficult to evenly distribute the reactant mixture over a large burner surface while retaining its stability and keeping low pollutant emissions. in order to allow for larger surface area burners, a non-uniform velocity profile mechanism for flame stabilization in a porous radiant burner using a single large injection hole is proposed and analyzed for a double-layered burner operating in open and closed hot (laboratory-scale furnace, with temperature-controlled, isothermal walls) environments. in both environments, local mean temperatures within the porous medium have been measured. for lower reactant flow rate and ambient temperature the flame shape is conical and anchored at the rim of the injection hole. as the volumetric flow rate or furnace temperature is raised, the flame undergoes a transition to a plane flame stabilized near the external burner surface. however, the stability range envelope remains the same in both regimes.

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