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تحقیق و طراحی مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • visualization of reactive and non-reactive mixing processes in a stirred tank using planar laser induced fluorescence (plif) technique

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 850
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a comprehensive study on the liquid mixing with/without instantaneous reactions was conducted using planar laser induced fluorescence (plif) technique, where a novel reactive plif technique was adopted to quantitatively visualize the dynamic variation of the concentration of fluorescence dye due to signal quenching by a fenton reaction. the factors (e.g., tracer injection direction, tracer injection position, impeller speed) influencing the reactive and non-reactive mixing processes were investigated, and the mixing performances were characterized by non-reactive mixing times (τ95 and τ99), and reactive mixing time (θ99), respectively. the experimental results from the 2-d measurements of liquid mixing behavior emphasized the significance of the understanding on the spatio-temporal mixing patterns: not only did the tracer injection position affect the mixing performances in the stirred tank, but also the sampling position to monitor the mixing status would lead to a large difference in evaluating the mixing performance. for the stirred tank with fast reactions, the reactive mixing performance had a strong interplay with the non-reactive mixing.

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