Parabolization and structural integrity of side bulb applied to a platform supply vessel

Ozgur Deli, Omer Goren, Sander Calisal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The waterline parabolization is a hull form-optimization method, Calisal et al. (2002) reported a 10% decrease in the effective horse power at Fr = 0.275 for a coaster tanker. The present study was made for an oil platform supply vessel (PSV) to improve the hull form, including structural work, and a cost, benefit analysis. The parabolization increased the vessel's beam by 5% and hull displacement accordingly. The required structural scantlings were calculated for the new parabolized hull, using the rules of American Bureau of Shipping (ABS). The study of a cost and payback analysis of the parabolized PSV showed, a net fuel savings of 280,000 liters/year, and provides US$235,000.00 per year saving, based on a 5.88% drop in resistance for an operation scenario. The payback period for the bulb is estimated to be nine to seventeen months. In addition, resistance reduction saves 753,900 kg of CO2 and 134,100 kg of NOx.

Original languageEnglish
Title of host publicationPRADS 2016 - Proceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures
EditorsJorgen Juncher Jensen, Ulrik Dam Nielsen
PublisherDTU Mechanical Engineering, Technical University of Denmark
ISBN (Electronic)9788774754732
Publication statusPublished - 2016
Event13th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2016 - Copenhagen, Denmark
Duration: 4 Sept 20168 Sept 2016

Publication series

NamePRADS 2016 - Proceedings of the 13th International Symposium on PRActical Design of Ships and Other Floating Structures

Conference

Conference13th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2016
Country/TerritoryDenmark
CityCopenhagen
Period4/09/168/09/16

Keywords

  • Ansys application
  • Cost benefit analysis
  • Eedi rating
  • Hull form improvement
  • Ship retrofit
  • Structural retrofit
  • Wave resistance

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