Design Report Guided Missile Submarine SSG(X) - AOE - Virginia ...

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SSG(X) Design – VT Team 3 Page 82 4.8.1 Volume Initial space requirements and availability in the ship are determined in the ship synthesis model. Arrangeable area estimates and requirements are refined in concept development arrangements and discussed in Sections 4.8.2 through 4.8.4. Table 55 compares required versus actual tankage volume. Table 55 – Required vs. Available Liquid Tankage Volume Variable Required (ft 3 Final Concept ) Design (ft 3 ) Lube Oil 42 42 Potable Water 160 160 Sewage 58 58 Clean Ballast 25156 26092 Diesel Fuel (Compensated) 5095 7948 Diesel Fuel (Clean) 1075 1086 Liquid Oxygen Tank 2839 2787 Initial longitudinal arrangement of the required systems is developed using the cartoon and flounder diagram. The weight and volume balance and equilibrium polygon are used to further refine the arrangement and check the feasibility of the arrangement under all loading conditions. The pressure hull diameter is 4 ft smaller than the outer hull to provide space for piping and other outboared systems. The auxiliary tanks, main machinery room, auxiliary machinery room, trim tanks, clean fuel tank, battery, CCC, habitability, stores, and torpedo room are located in the pressure hull. The remaining space enclosed by the outer hull contains the main ballast tanks, compensating fuel tank, hydrogen tank, torpedo tubes, and the sonar dome. 4.8.2 Main and Auxiliary Machinery Spaces and Machinery Arrangement Figure 75 shows the Main Machinery Room (MMR) and Auxiliary Machinery Room (AMR) located in the aft section of the pressure hull. The MMR spans the entire beam and 37 feet forward to aft on the first through the third deck. The AMR, just forward of the MMR, is comprised of the entire beam and 27 feet forward to aft on the second and third decks. A watertight bulkhead separates the two machinery spaces. For both the MMR and AMR each deck is accessible by a ladder system. Figure 75 - Profile view of MMR and AMR. The initial step in arranging the MMR and AMR is to create a machinery equipment list (MEL). The MEL is composed of the major propulsion, electrical, and auxiliary equipments with the corresponding weights and sizes. The primary systems of the SSG(X) submarine included in the MEL are the hydraulics, high pressure air, water distribution, electrical power distribution, and ventilation and air conditioning systems. After the MEL is completed the electric load diagram is used to place and connect the PEM fuel cells and diesel engines with the submarines systems. Once this basic layout is established, secondary equipment such as pumps, small tanks, and distribution panels are arranged in the machinery spaces. Figure 76 show that the LOX oxygen tanks and a PEM fuel cell located on the first deck of the MMR.
SSG(X) Design – VT Team 3 Page 83 Figure 76 - MMR Deck one equipment layout Figure 77 shows the equipment layout on the second deck of the MMR. The machinery equipments located on this deck include a PEM fuel cell, high pressure compressor and dehydrator, inlet and exhaust for the CAT 3512 diesel engines, and main machinery control console. Figure 77 - MMR Deck two equipment layout Figure 78 shows the equipment layout on deck three of the MMR. The machinery equipment located on this deck includes the CAT 3512 V12 diesel engines, power conversion module, air standard cylinder, oil water separator, generators, and pumps. Figure 78 - MMR deck three equipment layout
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Design Report Guided Missile Submarine SSG(X) - AOE - Virginia ...

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