Empirical correlation for predicting pressure gradients of oil-water flow with drag-reducing polymer
| Autor: | Adel Al-Ajmi, A.R. Al-Hashmi, M. Eshrati, A. Abubakar, Yahya Al-Wahaibi, Talal Al-Wahaibi |
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| Rok vydání: | 2016 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Mechanical Engineering General Chemical Engineering Flow (psychology) Polyacrylamide Aerospace Engineering Reynolds number 02 engineering and technology Mechanics 01 natural sciences 010305 fluids & plasmas symbols.namesake chemistry.chemical_compound Flow conditions 020401 chemical engineering Nuclear Energy and Engineering Volume (thermodynamics) chemistry Drag Phase (matter) 0103 physical sciences symbols 0204 chemical engineering Pressure gradient |
| Zdroj: | Experimental Thermal and Fluid Science. 79:275-282 |
| ISSN: | 0894-1777 |
| Popis: | This study deals with development and evaluation of empirical correlation for predicting pressure gradients of oil-water flow after the addition of drag-reducing polymer. The experimental pressure gradient data used for the correlation were obtained from three different acrylic pipe diameters (30.6, 55.7 and 74.7 mm) at different inclination angles. The drag-reducing polymer (DRP) which was a water-soluble copolymer of polyacrylamide and 2-acryamido-2-methylpropane sulfonic acid, was injected at 40 ppm concentration into the water phase of the oil-water flow. The flow conditions of 0.4–1.6 m/s mixture velocities and 0.05–0.9 input oil volume fractions were imposed. The measured pressure gradient data after the addition of the DRP were used to develop a friction factor correlation as a function of mixture Reynolds number. The developed correlation when tested against the current and previously published experimental data showed a good performance. It also showed the best performance when compared with similar existing correlation and homogeneous model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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