کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6615059 459626 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mass-transfer characterization in a parallel-plate electrochemical reactor with convergent flow
ترجمه فارسی عنوان
خصوصیات انتقال جرم در یک راکتور الکتروشیمیایی موازی با جریان همگرا
کلمات کلیدی
جریان متقابل، توزیع کنونی، ضریب انتقال جرم، الکترودهای موازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
A continuous reduction in the cross-section area is analysed as a means of improving mass-transfer in a parallel-plate electrochemical reactor. Experimental local mass-transfer coefficients along the electrode length are reported for different values of the convergent ratio and Reynolds numbers, using the reduction of ferricyanide as a test reaction. The Reynolds numbers evaluated at the reactor inlet range from 85 to 4600 with interelectrode gaps of 2 and 4 mm. The convergent flow improves the mean mass-transfer coefficient by 10-60% and mass-transfer distribution under laminar flow conditions becomes more uniform. The experimental data under laminar flow conditions are compared with theoretical calculations obtained by a computational fluid dynamics software and also with an analytical simplified model. A suitable agreement is observed between both theoretical treatments and with the experimental results. The pressure drop across the reactor is reported and compared with theoretical predictions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 113, 15 December 2013, Pages 575-582
نویسندگان
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