کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6590723 456861 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of magnetic resonance, X-ray and positron emission particle tracking measurements of a single jet of gas entering a bed of particles
ترجمه فارسی عنوان
مقایسه اندازه گیری ریزنشت مغناطیسی، اشعه ایکس و انتشار پوزیترون از یک جت واحد ورودی به تخت ذرات
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Measurements of the lengths of a single jet of gas entering a packed bed were made using magnetic resonance imaging (MRI), positron emission particle tracking (PEPT) and X-ray radiography and the results compared. The experiments were performed using a Perspex bed (50 mm i.d.) of poppy seeds: air at 298 K was admitted to the base of the bed through a single, central orifice, 2 mm in diameter. Poppy seeds (Geldart Group B, measured minimum fluidisation velocity with air at 298 K and 1 atm of 0.13 m/s and particle density ~1060 kg/m3) were used because of their high content of oil, which contains mobile protons and hence is suitable for MRI examination. The lengths of jet measured using the three techniques were in agreement between 50 m/s
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 122, 27 January 2015, Pages 210-218
نویسندگان
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