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3D Numerical Simulation of Two-Phase Immiscible Flow in Axial Vortex Technology and Economic Analysis for Industrial Produced Water Pretreatment Facility in Desalting Plants

Aghaee, Mohammad | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46092 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Roshandel, Ramin; Ashjari, Mohammad Ali
  7. Abstract:
  8. The phenomenon of vortex flow, is one of the most predominant streams in the nature. This phenomenon yielded by the motion of vortices, produces up to 1000 times acceleration of the Earth’s gravity. The issues of uncontrolled harvesting of oil wells and increase the life of the wells, which cause to increase in the extracted crude salt, reveal the importance of waste management and both handling and refining petroleum. According to global statistics, for every extracted barrel of oil, three barrels of water are yielded. Therefore, 250 million produced water barrels per day is produced.The separator technology with vortex core (brand Voraxial) is one of the latest technologies in waste-water oil separation. In this context, this project investigates the vortex core phenomenon by modeling technology. Moreover,the development of economic model is used to analyze the feasibility of application of this technology in crude oil desalination units.The modeling of the vortex core contains the zero-dimensional (basic model) and three-dimensional models. The three-dimensional model based on the 2000 model has been developed by Voraxial business model. The mixture model and k epsilon model is used for two-phase flow modeling and turbulence flow modeling respectively. The numerical two-phase flow vortex core is simulated by solving the equations of these models with the method of third order and a minimum accuracy of 103 for the continuity equation and 106 for the rest of the governing equations, in Fluent software. The results shows the separation efficiency of 95 percent, with flow rate of 1700 barrels per day of oil effluent with concentration of 3,000 ppm and diameter of 400 microns. In addition, the development of economic model indicate the localization of the technology (50% reduction in the cost of technology)cause Payback-period time 1.8 years
  9. Keywords:
  10. Two Phase Flow ; Technical and Economical Comparison ; Vortex Flow (Eddy Current) ; Oil From Water Separation ; Axial Vortex Separator

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