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SCADA System ,Stability and Tuning Analysis of Crude Oil in Pipeline Stations: A case study of Nile Blend

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dc.contributor.author Ahmed, Reham Emam DafAllah
dc.date.accessioned 2018-09-24T08:21:23Z
dc.date.available 2018-09-24T08:21:23Z
dc.date.issued 2014-06-26
dc.identifier.uri http://repo.uofg.edu.sd/handle/123456789/1951
dc.description A Dissertation Submitted to the University of Gezira in Partial Fulfillment of the Requirements for the Award of the Degree of Master of Science in Chemical Engineering Department of Applied Chemistry and Chemical Technology ,Faculty of Engineering and Technology June,2014 en_US
dc.description.abstract Heavy crude oil often has high wax contents .The Nile Blend has a high pour point of 33 C0and wax content of 25.87%wt.If crude oil is transported along a pipeline the temperature may dropped and consequently the wax will be deposited on the pipeline wall and may completely block it .Hence it is very important to keep the crude oil above the pour point through either heating or addition of viscosity depressant or both. In this study it is required to control the flow properties of the crude oil along the pipeline , by controlling the temperature and viscosity in stations in series of 300Km apart , where the crude will be transported from the central processing facilities (CPF) to Bashaier at the red sea of 1610 km distance.The objectives of this study were to control the pipeline rheological flow properties through pipeline,design, analysis and tuning of control system for temperature and viscosity along the pipeline and connect the local control stations with central SCADA system.The control strategy is developed with two loops, one to control the temperature in the pipeline and the other is to control the viscosity by manipulating the flow quantity of the additives .The control system reported to the SCADA system for more tight control .The control strategy of the system was developed, the transfer functions were identified, stability analysis, tuning and impulse response were performed. A complete control system was designed and connected with SCADA system, the same will be interfaced to digital control with PLC processor. It is recommended to convert controller system to digital controller system,Auto tuning should be done,Fuzzy control might be used for more accuracy and SCADA system is very useful in remote areas, and should be applied. en_US
dc.description.sponsorship Gurashi Abdalla Gasmelseed (Major Supervisor) Salih Mohamed Ahmed Abbaker (Co-supervisor) en_US
dc.language.iso en en_US
dc.publisher University of Gezira en_US
dc.subject crude oil en_US
dc.subject pipeline the tempera en_US
dc.subject flow properties en_US
dc.title SCADA System ,Stability and Tuning Analysis of Crude Oil in Pipeline Stations: A case study of Nile Blend en_US
dc.type Thesis en_US

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