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    Document Title: Technical Proposal For 6500cbm LNG Storage Tank

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    roni_arsyah
    This technical proposal outlines the design of a 6500 cubic meter LNG storage tank for an LNG carrier. The key details include: - The tank will have a single cylindrical shell with hemispherical heads, above deck arrangement, 12200mm diameter, 59900mm length, and 6500 cubic meter capacity. - The tank structure will include stiffening rings, an anti-sloshing plate, a dome on the top, and a sump at the bottom. - The tank foundations will include one fixed bearing and one slide bearing using wooden blocks and stainless steel sheets to allow for thermal movement. Anti-flotation devices will also be included. - Polyurethane foam

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    Document Title: Technical Proposal For 6500cbm LNG Storage Tank

    Uploaded by

    roni_arsyah
    35 views4 pages
    This technical proposal outlines the design of a 6500 cubic meter LNG storage tank for an LNG carrier. The key details include: - The tank will have a single cylindrical shell with hemispherical heads, above deck arrangement, 12200mm diameter, 59900mm length, and 6500 cubic meter capacity. - The tank structure will include stiffening rings, an anti-sloshing plate, a dome on the top, and a sump at the bottom. - The tank foundations will include one fixed bearing and one slide bearing using wooden blocks and stainless steel sheets to allow for thermal movement. Anti-flotation devices will also be included. - Polyurethane foam

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    This technical proposal outlines the design of a 6500 cubic meter LNG storage tank for an LNG carrier. The key details include: - The tank will have a single cylindrical shell with hemispherical heads, above deck arrangement, 12200mm diameter, 59900mm length, and 6500 cubic meter capacity. - The tank structure will include stiffening rings, an anti-sloshing plate, a dome on the top, and a sump at the bottom. - The tank foundations will include one fixed bearing and one slide bearing using wooden blocks and stainless steel sheets to allow for thermal movement. Anti-flotation devices will also be included. - Polyurethane foam

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    35 views4 pages

    Document Title: Technical Proposal For 6500cbm LNG Storage Tank

    Uploaded by

    roni_arsyah
    This technical proposal outlines the design of a 6500 cubic meter LNG storage tank for an LNG carrier. The key details include: - The tank will have a single cylindrical shell with hemispherical heads, above deck arrangement, 12200mm diameter, 59900mm length, and 6500 cubic meter capacity. - The tank structure will include stiffening rings, an anti-sloshing plate, a dome on the top, and a sump at the bottom. - The tank foundations will include one fixed bearing and one slide bearing using wooden blocks and stainless steel sheets to allow for thermal movement. Anti-flotation devices will also be included. - Polyurethane foam

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 4

    Document

    Technical Proposal For 6500cbm LNG Storage Tank


    Title :

    Document No : CLNG-23013-ENG-SPE-6500

    Project : 6500 CBM LNG CARRIER

    Equipment : TYPE C STORAGE TANK

    C-LNG Project
    23013
    No :

    A 07-02-23 For information ZRJ DH SDW

    R Date Description Prepared Checked Approved


    TABLE OF CONTENTS

    TABLE OF CONTENTS.......................................................................................................................... 2

    1. General………………………………………………………………………...……………………………… 3
    1.1 Design condition ................................................................................................................................ 3
    1.2 Classification, Rule& Regulations to be applied ................................................................................ 3

    2. Tank General Data ............................................................................................................................ 3


    2.2 Tank structure ................................................................................................................................... 3
    2.3 Tank Foundations.............................................................................................................................. 4

    Page 2 of 4
    1. General
    This technical proposal covers 1 LNG storage tanks.

    1.1 Design condition


    Tank volume/per tank 6500 m3
    No. of tanks 1
    IMO Type C
    Tank shape Cylinder
    Design pressure 5 bar g
    Tank design external pressure TBD
    Min. design temperature -163 ℃
    Minimum impact test temperature -196 °C
    Density for tank structural design 500 kg/m3
    Tank material X7Ni9
    Flag TBD
    Class TBD

    1.2 Classification, Rule& Regulations to be applied


    - Classification Society Rules
    - IGC Code
    - Other rules acceptable to classification societies
    2. Tank General Data
    The tank is LNG storage tank IMO type C of single shell. The dimensions of each tank are as follows:
    No. 1 Tank
    Tank type Type C with single wall
    Tank Shape Cylindrical
    Heads Hemi-Spherical Head
    Arrangement Above deck
    Diameter inside 12200mm
    Total length inside 59900mm
    Total volume [m3] abt. 6500
    Filling Limit 95%

    2.2 Tank structure


    LNG storage tank is independent, insulated and equipped with one (1) dome. On the top and one (1)
    sump at the bottom. Stiffen rings and anti-sloshing plate (if any) are arranged inside the tank.

    Page 3 of 4
    2.3 Tank Foundations
    To ensure free movement of the tanks due to temperature changes, one support is to be designed as a
    fixed bearing and the other as a slide bearing. The supports are equipped with special impregnated and
    laminated press wood. For the slide bearing, wooden blocks are installed on tank side as well on ship
    side. Stainless steel sheets are installed between the wood blocks.
    A set of anti-flotation devices are to be provided in order to keep the tank in position.

    2.4 Tank Insulation


    The outer surface of the tanks is to be insulated with polymeric coating. Thickness of Polyurethane foam
    insulation shall be appox. 300 mm.
    Data for tank insulation
    λ-value ~0.023 W/m ℃
    Thickness ~300 mm
    Foam density ~ 40 kg/m3
    B.O.R.(filling @ 89%) ~0.23 %/day
    Class approval for tank by TBD
    NOTE:
    Detailed insulation calculation to be made by insulation maker.

    Page 4 of 4

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