12 مهر 1401
غلامحسين روشني

غلامحسین روشنی

مرتبه علمی: دانشیار
نشانی:
تحصیلات: دکترای تخصصی / مهندسی هسته ای
تلفن:
دانشکده: دانشکده انرژی

مشخصات پژوهش

عنوان
DESIGNING A SIMPLE RADIOMETRIC SYSTEM TO PREDICT VOID FRACTION PERCENTAGE INDEPENDENT OF FLOWPATTERN USING RADIAL BASIS FUNCTION
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
two-phase flow, gamma ray attenuation, scintillation detector, void fraction, artificial neural network.
پژوهشگران غلامحسین روشنی (نفر اول)، احسان ناظمی (نفر دوم)، فرزین شماع (نفر سوم)، محمدامین ایمانی (نفر چهارم)، سالار محمدی (نفر پنجم)

چکیده

The void fraction is one of the most important parameters characterizing a multiphase flow. The prediction of the performance of any system operating with more than single phase relies on our knowledge and ability to measure the void fraction. In this work, a validated simulation study was performed in order to predict the void fraction independent of the flow pattern in gas-liquid two-phase flows using a gamma ray 60Co source and just one scintillation detector with the help of an artificial neural network (ANN) model of radial basis function (RBF). Three used inputs of ANN include a registered count under Compton continuum and counts under full energy peaks of 1173 and 1333 keV. The output is a void fraction percentage. Applying this methodology, the percentage of void fraction independent of the flow pattern of a gas-liquid two-phase flow was estimated with a mean relative error less than 1.17%. Although the error obtained in this study is almost close to those obtained in other similar works, only one detector was used, while in the previous studies at least two detectors were employed. Advantages of using fewer detectors are: cost reduction and system simplification.