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Tanker Spills Prevention by Design (1991) / Chapter Skim
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Appendix K: Committee Estimates of Oil Outflow Relative to MARPOL Standard
Pages 330-334

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From page 330...
... for several design alternatives; the committee made its own estimates for other alternatives using the DnV individual estimates of grounding and/or collision performance. This performance rating is stated as an outflow index relative to the conventional MARPOL tanker (designated by DnV as "original" in their report)
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From page 331...
... Intermediate oil-tight deck with double sides Double sides with hydrostatic control Double hull with hydrostatic control Hydrostatic control Small tanks Intermediate Oil DnV Arrangement Tight Deck with Number Double Sides Double sides with hydrostatic control collision (3 B) 30 19 Intermediate oil tight deck grounding (8)
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From page 332...
... 3 3 Total 52 34 Reference: DnV Outflow Figures from Chapter 5: Figure 5-15 Speed: 5 Knots Figure 5-16 Speed: 10 Knots Smaller Tanks Assume base ship (l) with twice as many transverse bulkheads.
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From page 333...
... Total Double Sides with Hydrostatic Control Double sides collision ( 2 ) Hydrostatic control grounding Total Double Hull with Hydrostatic Control Double hull collision Hydrostatic control Total 333 55 34 2 57 36 75 x .9 = 67 44 x .9 = 40 (Use VLCC Values)
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Key Terms

  • double hull
  • dnv arrangement
  • control double
  • tight deck
  • intermediate oil

  • control hydrostatic
  • centerline bulkhead
  • own estimates
  • cargo tanks
  • control grounding

  • collision hydrostatic
  • grounding averages
  • control design
  • average hydrostatic
  • outflow figures

  • alternatives using
  • design alternatives
  • individual estimates
  • collision performance
  • hull collision

  • dnv individual
  • dnv outflow
  • deck grounding
  • knots figure
  • base collision

  • vlcc values
  • collision index
  • base grounding
  • grounding index
  • marpol base


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