{"id":8757,"date":"2024-10-06T10:40:45","date_gmt":"2024-10-06T10:40:45","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=8757"},"modified":"2025-05-12T18:48:41","modified_gmt":"2025-05-12T18:48:41","slug":"aux-2-unit-14-q5","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=8757","title":{"rendered":"Aux 2 Unit 14 Q5"},"content":{"rendered":"\n
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  1. With reference to the storage of volatile fuels, describe the construction and placement requirements of the storage tanks for aviation fuel, including tank ventilation.(10)<\/li>\n<\/ol>\n\n\n
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    \n\t\t\t
    \n\t\t\t

    Storage of volatile fuels<\/p>\n\t\t\t

    <\/span><\/div>\n\t\t<\/div>\n\t\t\t
    \n\n

    Storing volatile fuels like aviation fuel on a superyacht requires stringent safety measures due to their flammability and potential for explosions. Here’s a breakdown of the construction and placement requirements for such tanks, with a focus on ventilation:<\/p>\n\n\n\n

    1. Construction Requirements:<\/strong><\/p>\n\n\n\n

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    • Material:<\/strong>\n
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      • Stainless Steel:<\/strong> Highly preferred due to its corrosion resistance, especially in marine environments. \u00a0<\/li>\n\n\n\n
      • Other Materials:<\/strong> May be permitted with specific coatings or treatments to prevent fuel degradation and ensure compatibility.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Baffle-Free Design:<\/strong>\n
          \n
        • Baffles (internal partitions) are generally avoided to prevent excessive sloshing and potential stress on the tank structure.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • Cylindrical Shape:<\/strong>\n
            \n
          • Cylindrical tanks are preferred for their structural strength and ability to withstand pressure. \u00a0<\/li>\n<\/ul>\n<\/li>\n\n\n\n
          • Leakproof:<\/strong>\n
              \n
            • Tanks must be designed and constructed to be completely leakproof, with robust welds and secure fittings.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
            • Inspection Access:<\/strong>\n
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              • Adequate access points (manholes, inspection hatches) should be provided for internal inspection and maintenance.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                2. Placement Requirements:<\/strong><\/p>\n\n\n\n

                  \n
                • Dedicated Space:<\/strong>\n
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                  • Located in a designated, isolated area, separate from machinery spaces, accommodation spaces, and other potential ignition sources.<\/li>\n\n\n\n
                  • This dedicated space should have adequate fire protection measures (e.g., fire suppression system).<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                  • Remote from Ignition Sources:<\/strong>\n
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                    • Positioned as far as practicable from potential ignition sources like engines, generators, electrical equipment, and galley spaces.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                    • Accessibility:<\/strong>\n
                        \n
                      • While isolated, the tanks should still be accessible for inspection, maintenance, and refueling operations.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                        3. Tank Ventilation (Breather) System:<\/strong><\/p>\n\n\n\n

                          \n
                        • Purpose:<\/strong>\n
                            \n
                          • To prevent excessive pressure or vacuum buildup inside the tank during filling, emptying, or temperature changes.<\/li>\n\n\n\n
                          • To allow for the safe venting of flammable vapors.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                          • Components:<\/strong>\n
                              \n
                            • Vent Head:<\/strong> An approved vent head with a pressure-vacuum valve to regulate pressure and prevent air ingress.<\/li>\n\n\n\n
                            • Flame Arrester:<\/strong> A device that prevents flames from entering the tank in case of a fire outside.<\/li>\n\n\n\n
                            • Desiccant:<\/strong> A drying agent (like silica gel) to remove moisture from the incoming air and prevent condensation inside the tank.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                            • Vent Outlet Location:<\/strong>\n
                                \n
                              • Located at least 2.3 meters above the weather deck.<\/li>\n\n\n\n
                              • Positioned away from accommodation spaces, ventilation intakes, and any potential ignition sources.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                              • High-Level Alarm:<\/strong>\n
                                  \n
                                • An intrinsically safe level indicator and high-level alarm should be fitted to prevent overfilling.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                                  4. Additional Considerations:<\/strong><\/p>\n\n\n\n

                                    \n
                                  • Coaming:<\/strong> A raised lip or coaming around the tank area to contain any spills or leaks.<\/li>\n\n\n\n
                                  • Bonding and Grounding:<\/strong> Proper bonding and grounding of the tank and associated piping to prevent static electricity buildup.<\/li>\n\n\n\n
                                  • Fire Safety:<\/strong> Adequate fire protection measures, such as fire extinguishers or a fixed fire suppression system, should be provided in the tank storage area.<\/li>\n\n\n\n
                                  • Emergency Procedures:<\/strong> Clear procedures should be in place for dealing with fuel spills, leaks, or fires.<\/li>\n<\/ul>\n\n\n\n

                                    Key Regulations and Standards:<\/strong><\/p>\n\n\n\n

                                      \n
                                    • The Large Commercial Yacht Code (LY3):<\/strong> Provides detailed guidance on the construction, placement, and ventilation of aviation fuel tanks on superyachts.<\/li>\n\n\n\n
                                    • Classification Society Rules:<\/strong> Classification societies like Lloyd’s Register or DNV have their own rules for fuel tank installations on yachts.<\/li>\n<\/ul>\n\n\n\n

                                      By adhering to these stringent requirements, the risks associated with storing volatile aviation fuel on board superyachts can be minimized, ensuring the safety of the vessel, its crew, and passengers.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-8757","page","type-page","status-publish","hentry"],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8757"}],"version-history":[{"count":2,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8757\/revisions"}],"predecessor-version":[{"id":8777,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8757\/revisions\/8777"}],"wp:attachment":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}