کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6593102 | 1423367 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigating the flow characteristics of air-lift pumps operating in gas-liquid two-phase flow
ترجمه فارسی عنوان
بررسی ویژگی های جریان پمپ های بالابر در جریان دو فاز گاز مایع
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کلمات کلیدی
تلمبه، گاز مایع جریان، مخلوط، ساختار جریان، لوله کش
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Experiments were conducted to investigate the flow characteristics in the riser pipe and the suction pipe of airlift pump at a series of air flow rates and submergence ratios by using a high speed camcorder and a Laser Doppler Velocimetry system (LDV). A modified model was developed to predict the performance of airlift pump operating in gas-liquid two-phase flow. The results show that an unstable flow structure composed by a water falling film, a bubbly mixture, a water ascending film appearing alternately in riser pipe dominates the performance of airlift pump at large air flow rates. The bubbly mixture with a strongest capacity for pumping water first increases to its maximum and then slightly decreases. In suction pipe, the average velocity shows a flat profile and increases with increasing submergence ratio. Moreover, the predicted results of modified model are in good agreement with the experimental data in a margin of ± 12%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Chemical Engineering - Volume 26, Issue 2, February 2018, Pages 219-227
Journal: Chinese Journal of Chemical Engineering - Volume 26, Issue 2, February 2018, Pages 219-227
نویسندگان
Zhineng Wang, Yong Kang, Xiaochuan Wang, Deng Li, Dong Hu,