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    Thermal and fluid dynamic analysis of gas-to-liquids transportation through Trans Alaska Pipeline System

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    Author
    Nerella, Sirisha
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    URI
    http://hdl.handle.net/11122/6290
    Abstract
    Gas-to-liquids (GTL) technology involves the conversion of natural gas to liquid hydrocarbons. In this study, theoretical studies have been presented to determine the feasibility of transporting GTL products through the Trans-Alaska Pipeline System (TAPS). To successfully transport GTL through TAPS, heat loss along the route must be carefully determined. This study presents heat transfer and fluid dynamic calculations to evaluate this feasibility. Because of heat loss, the fluid temperature decreases in the direction of flow and this affects the fluid properties, which in turn influence convection coefficient and pumping power requirements. The temperature and heat loss distribution along the pipeline at different locations have been calculated. Fairly good agreement with measured oil temperatures is observed. The powers required to pump crude oil and GTL individually, against various losses have been calculated. Two GTL transportation modes have been considered; one as a pure stream of GTL and the second as a commingled mixture with crude oil. These results show that the pumping power and heat loss for GTL are less than that of the crude oil for the same volumetric flow rate. Therefore, GTL can be transported through TAPS using existing equipment at pump stations.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2002
    Date
    2002-08
    Type
    Thesis
    Collections
    Engineering

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