Machinery Estimate Problem

Discussion in 'Boat Design' started by adnan2012, May 2, 2012.

  1. adnan2012
    Joined: Apr 2012
    Posts: 2
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    Location: India

    adnan2012 New Member

    I am calculating preliminary Lightship weight for my fishing trawler. I complete the calculation of my ships steel structure weight but outfitting and machinery items stops me.
    • How can I calculate the preliminary weight of outfitting items?
    • The owner gives me the specification of machinery items without weight. If anyone known with these Machinery please tells me about the weight.

    DECK WINCHES
    Main Trawl Winches x 2 Winches
    Maker of Drum: JV, Denmark - Bangladesh
    Hydraulic Pump: Komatsu, Japan
    Hydraulic Motor: Nabtesco/Kayaba, Japan
    Capacity: Working load 12 Ton
    Revs: 30 RPM ( Max)

    Gilsen Winch x 2 NOS
    Maker of Drum: JV, Denmark - Bangladesh
    Hydraulic Pump: Japan
    Hydraulic Motor: Japan
    Capacity: Working loads 6 Tons.
    Revs: 30 RPM (Max)

    Deck Crane x 1 NO
    Maker: China
    Brand: XCMG
    Model: SQ5SK2Q
    Type: Telescopin boom crane
    Capacity; 3 Tons

    Net Drum Winches x 2 Nos
    Maker of Net drum : Bangladesh.
    Hydraulic Pump: Japan
    Hydraulic Motor: Nabtesco/ Kayaba,Japan
    Capacity: - Working load 6 Tons.
    Revs: 30 RPM (Max)

    GEARBOXES
    Maker: Germany
    Model: Reintjes/ ZF
    Type: Reversible reduction gear box.
    Model: Ratio: 6.9:1
    Max Propeller RPM limited to 240

    MAIN GENERATORS x 2 NOS
    Maker: Caterpillar, USA
    Model C18 x 2 synchonized
    Power: 2 x 275 KW, 380 V, 50 HZ, 3 phase.
    RPM: 1500
    Self Starting

    HINO ENGINE FOR MAIN WINCH HYDRAULIC PUMP DRIVE and ELECTRICAL MOTOR OF 45 KW
    Hino EK-100
    Maker: Japan
    BHP: 250

    REFREGERATOR COMPRESSORS x 6 nos
    1. BITZER 6F.2 / Bock-F16 : 6 nos, Germany,
    2. Electrical Motor : 50HP x 6 nos
    3. Evaporator, Kuba : 6 nos, Germany
    4. Condenser, Bitzer : 6 nos, Germany
     
  2. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    What I do in these cases, since the suppliers of the equipment are already defined, is to ask directly to them full information about their products, or look in their catalogs that are surely on the web.
     
  3. adnan2012
    Joined: Apr 2012
    Posts: 2
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    Location: India

    adnan2012 New Member

    Sorry don't think me wrong. I'm just preliminary calculating machinery weight of my ship. Machinery isn't fixed. It is conceptual. I don't have any drawings of this machinery or specification. I search in web but not found. If you know something please tell me about preliminary machinery weight calculation.
     
  4. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Again, contact the manufacture's and ask for the technical specification drawings, which will provide the CG and physical dimensions you require. Yep, it's a tedious affair, welcome to yacht design. Eventually, you'll generate a data base of hundreds of items. Consider this your beginning.
     

  5. TANSL
    Joined: Sep 2011
    Posts: 6,163
    Likes: 287, Points: 93, Legacy Rep: 300
    Location: Spain

    TANSL Senior Member

    Just 3 seconds with Google : search for Caterpillar, USA Model C18 x 2 synchonized

    Although machinery not yet definitive, it is clear that this procedure will get a much more accurate data than any other theoretic. And besides, you always have a justification, reliable, about weights you've used. Like PAR says, start now to create a good database with equipment you use.
     

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