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CFD Analysis of Supercritical Water Reactor for Flow Back and Produced Water Treatment

Shrawage, Abhijeet J.
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1407229655

Abstract Details

2014, Master of Science (MS), Ohio University, Mechanical Engineering (Engineering and Technology).
Shale deposits have the potential of unlocking a vast reserve of fuel across the United States. However, the current high water usage of the horizontal drilling and hydraulic fracturing techniques used to develop shale resources needs to be addressed. OHIO is developing the Integrated Precipitative Supercritical Process (IPSC), with the aim of reusing flowback and produced water (F/P) from shale wells to reduce the water intensity of shale development activities. Of the components in the IPSC process, the Supercritical Water Reactor (SCWR) will be responsible in the treatment of the major salt constituents in F/P water. The purpose of this thesis was to utilize CFD analysis, using ANSYS Fluent (Fluent), to investigate the heat transfer and fluid flow in the SCWR, at different inlet temperatures (350° C and 390° C) and operating pressures (23 MPa and 26 MPa). A user-defined material representing Supercritical Water (SCW) was developed in Fluent, which was later compared to existing experimental data from literature and implemented to evaluate SCWR operation. Temperature and density contours along with flow patterns within the SCWR are presented. The estimated TDS solubility in the lower half of the SCWR were estimated based upon SCW density. It was observed that at higher operating pressures, SCW could be heated to a higher temperature compared to pressures around the supercritical point (PSupercritical = 22.064 MPa). However, the minimum SCW density increases as the operating pressure increases, resulting in an increase of TDS solubility. As a result, the ideal conditions would need to be a balance between the inlet temperature of F/P water and the operating pressure of the system.
Jason Trembly (Advisor)
David Bayless (Committee Member)
Ben Stuart (Committee Member)
Natalie Kruse- Daniels (Committee Member)
158 p.
Engineering; Fluid Dynamics; Mechanical Engineering
Super-Critical water; Heat transfer; CFD simulation; Flowback and Produced water

Recommended Citations

Citations

  • Shrawage, A. J. (2014). CFD Analysis of Supercritical Water Reactor for Flow Back and Produced Water Treatment [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1407229655

    APA Style (7th edition)

  • Shrawage, Abhijeet. CFD Analysis of Supercritical Water Reactor for Flow Back and Produced Water Treatment. 2014. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1407229655.

    MLA Style (8th edition)

  • Shrawage, Abhijeet. "CFD Analysis of Supercritical Water Reactor for Flow Back and Produced Water Treatment." Master's thesis, Ohio University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1407229655

    Chicago Manual of Style (17th edition)

ohiou1407229655
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This open access ETD is published by Ohio University and OhioLINK.