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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۱، شماره ۲، صفحات ۶۳۵-۶۵۱
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عنوان انگلیسی Experimental Investigation on Super High Viscosity Oil-Water Two-Phase Flow in a Horizontal Pipe
چکیده انگلیسی مقاله The flow patterns and pressure gradient of a two-phase mixture of water/super high viscous oil in a horizontal pipe were experimentally investigated. The mixture containing oil with a viscosity of 67 cP and density of 0.872 g/cm3, and pure water flows through an acrylic pipe with a length of 6m and a diameter of 20 mm. Superficial velocities of water and oil were in the range between 0.18–1.2 m/s and 0.18–0.95 m/s, respectively. Six flow patterns were identified. The stratified flow became visible at low velocities of oil (<0.42 m/s) and water (<0.26 m/s) and bubbly flow patterns happened at low superficial oil velocities (Uso = 0.18–0.22 m/s). The dispersion of oil in water (DO/W) occurred at high superficial water velocity (Usw =0.79 – 1.2 m/s) at low or moderate superficial oil velocities (Uso = 0.18 –0.53 m/s). Dispersion of water in oil (DW/O) appeared from superficial oil velocity of higher than 0.69 m/s. The effect of oil viscosity on flow structure was assessed by comparing the present work with the available data and this revealed that the extent of dual continuous patterns reported by other systems containing low viscosity oil is 5% higher than the results of the present study. The effect of oil viscosity on the pressure gradient was also investigated. The pressure gradient values obtained in this study were 80% greater than other studies at similar superficial oil and water velocities. The experimental pressure gradient was also compared with the values predicted by the Al-Wahaibi correlation and two-fluid model. The Al-Wahaibi correlation agreed reasonably with the experimental results, with an average absolute error of less than 9%, while
 the error of the two-fluid model was 30%.  Based on the results, a clear overview of the flow patterns and pressure drop with detailed information was presented.
کلیدواژه‌های انگلیسی مقاله Oil-water flow,Flow pattern map,pressure gradient,Super high viscous oil
نویسندگان مقاله Yasha Hasanzadeh |
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

Seyed Ali Alavi Fazel |
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

Zoha Azizi |
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

Seyed Mohsen Peyghambarzadeh |
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

Alireza Azimi |
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_249627_34f3f40f818ef28a70be43f90b2d8886.pdf
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