کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4993133 | 1457614 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Two-phase pressure drop and flooding characteristics in a horizontal-vertical pulsed sieve-plate column
ترجمه فارسی عنوان
افت فشار دو فاز و ویژگی های سیلاب در ستون پالس غربال افقی عمودی
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کلمات کلیدی
افت فشار، نقطه سیل، ستون پالس افقی عمودی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this paper, an experimental investigation on the two-phase pressure drop has been carried out in a novel class of extractors entitled "horizontal-vertical pulsed sieve-plate column". The liquid-liquid systems used in this work are toluene-water, n-butyl acetate-water and butanol-water. The effects of operating parameters including the dispersed and continuous phases flow rates and pulsation intensity on total pressure drop under and at the flooding points have been studied. It is achieved that the pressure drop is strongly affected by the continuous and dispersed flow rates as well as pulsation intensity. In fact, the column experiences higher pressure drop with an increase in the values of Af, Qâc and Qâd. The interfacial tension is a physical property which has significant impact on pressure drop. Two theoretical-experimental correlations for prediction of pressure drop under and at the flooding in the column, and one correlation for maximum throughput are proposed by using dimensional analysis method with Average Absolute Relative Error (AARE) values of 2.15%, 3.56 and 6.85% respectively. Moreover, a particular approach for preventing flooding in pulsed extraction columns is developed based on evaluation of pressure drop through the column length.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 65, June 2017, Pages 266-276
Journal: International Journal of Heat and Fluid Flow - Volume 65, June 2017, Pages 266-276
نویسندگان
Pouria Amani, Jaber Safdari, Hossein Abolghasemi, Mohammad H. Mallah, Amin Davari,