STP879

    Evaluation of Thermal Conductance of Liquefied Natural Gas Tank Insulation

    Published: Jan 1985


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    Abstract

    The activities in testing of liquefied natural gas (LNG) insulation of The Division of Refrigeration Engineering at the University in Trondheim were initiated by the need for a satisfactory insulation system for the spherical tank LNG carriers of Moss Rosenberg Verft. A large scale guarded hot plate apparatus has been built, with test area 2 by 3 m2. The temperature on the cold plate may be 0 to –162°C, and on the warm plate 30 to –30°C. Measurements may be made in horizontal convection-free mode, and in vertical convection mode.

    A load-bearing evacuated insulation may be a possible solution in the efforts to reduce the boil-off of the tank content. A heat flow meter apparatus for testing evacuated insulations under load has been built, with diameter of the specimen 400 mm, and thickness up to 100 mm.

    Keywords:

    guarded hot plate apparatus, heat flow meter apparatus, liquefied natural gas insulation, evacuated insulation


    Author Information:

    Brendeng, E
    Professor, The Norwegian Institute of Technology, Trondheim,


    Paper ID: STP32901S

    Committee/Subcommittee: C16.30

    DOI: 10.1520/STP32901S


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