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Centrifugal Pump Characteristics for Crude Oil Transfer

Noor Syaffynas bt Yusoff, Noor Syaffynas (2010) Centrifugal Pump Characteristics for Crude Oil Transfer. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The objectives of the project are to determine the range viscosity and specific gravity of crude oil to be transferred using centrifugal pump, to evaluate the important characteristic of centrifugal pump to be used for crude oil transfer suitable for a range of crude oil properties and to evaluate temperature effect on crude oil properties, hence centrifugal pump characteristics curve. The problem faces in this project is effective and efficient crude oil transfer using centrifugal pump requires a proper design for different types of crude oil properties and the characteristics of centrifugal pump. There are two characteristics of crude oil that always affected efficiency and the performance of centrifugal pump which are viscosity and specific gravity. Crude oil consists of three types which are light crude oil, medium crude oil and heavy crude oil. Heavy crude oil is very viscous in properties followed by medium crude oil and light crude oil. Flow rate of pump decreases as viscosity (heavy crude oil) increase and decrease as specific gravity of crude oil increase. Characteristics of centrifugal pump which are total head, efficiency, net positive suction head required and brake horsepower will be affected if flow rate of the pump low. A few experiments have been set-up to study the characteristic curves when centrifugal pump pumping different properties of fluids. First experiments were density test and viscosity test. Second experiment was pump test rig experiment to see the effect of fluid properties towards pump performance and lastly, temperature effect test on fluids during centrifugal pump pumping the fluid. The highest viscosity of crude oil was heavy crude oil with 4.034 cp and the highest specific gravity was sea water with 1.027. Head of pump when pumping water was higher compared to pumping heavy crude oil with shut off head 8.434 m. Centrifugal pump was very efficient when pumping water with 17.858. Power output required to pump sea water was the higher with 19W compared to other fluids. Net positive suction head required of diesel and light crude oil showed the high differential value between vapor head and suction head which was 83% from 0 flow rate to 0.0002 m3/s flow rate. Fluids will be heated up in order to decrease the viscosity effect of fluids, hence increase the pump performances. The results had shown that the theory has been approved when the same pattern performance graph were executed.

Item Type: Final Year Project
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1423

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