کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6591847 | 456881 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrodynamics of an inclined gas-liquid cocurrent upflow packed bed
ترجمه فارسی عنوان
هیدرودینامیک یک تخت بسته بندی شده با جریان گاز پلاسمای جریان یافته
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The effects of inclination on the hydrodynamic behavior of a packed bed operating under gas-liquid cocurrent upflow were experimentally investigated in terms of liquid saturation, bed overall pressure drop and gas-liquid segregation. The non-invasive electrical capacitance tomography (ECT) imaging technique was applied to scrutinize local and axial phase distribution pattern and cross-sectionally averaged liquid saturation. The results indicate that bed inclination creates short circuits for the gas phase along the upper wall where it can flow in a segregated manner. Inception of transition from bubble to segregated flow regime was identified through monitoring a defined uniformity factor for ECT images. Phase segregation developed along the bed with minimum impact in the region close to the entrance. The removed bubbles were replaced by liquid phase resulting in higher liquid saturation values as complete segregation state was approached. The effect of operating conditions on axial profile of liquid saturation was examined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 102, 11 October 2013, Pages 397-404
Journal: Chemical Engineering Science - Volume 102, 11 October 2013, Pages 397-404
نویسندگان
Hana Bouteldja, Mohsen Hamidipour, Faïçal Larachi,