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< Natural Gas and Oil > Editorial Department
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China Petroleum Engineering & Construction Corporation
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Du Tonglin
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Tang Xiaoyong,Pu Liming
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2010 Vol.4

    Numerical Simulation for Temperature Drop of Buried Hot Oil Pipeline during Shutdown in Permafrost Region
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    Author's Workplace：
    Key Words：Frozen earth;Hot oil pipeline;Shutdown;FLUENT;Numerical simulation
    Abstract：According to the characteristics of service environments of buried hot oil pipeline in permafrost region for many years,nonsteadystate heat transfer model is established for hot oil pipeline during shutdown,the FLUENT software is used to numerically simulate the earth temperature field of hot oil pipeline during shutdown in different seasons and regularity for change of hot oil temperature in pipeline during shutdown with time.Combined with the "Enthalpyporosity" technology,considered are the effects of latent heat of solidification and naturalconvection heat transfer on temperature drop and simulated is the evolutionary process of crude oil solidification in pipeline,determined is a reasonable time for shutdown,which provides a theoretical guidance for safe pipeline startup.
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