散货船设计要点.pptVIP

Introduction Operational and Regulatory Challenges ? Design Challenges Examples: Cargo Residues Excessive Loading Rates IMSBC Code MARPOL Annex V (Garbage) and Cargo Residues Definitions Cargo Residue is defined as garbage in guidelines Cargo hold washing water not defined – although interpreted as garbage Requirements Must be discharged when greater than 12 nm from shore Cannot be discharged in a special area Special Areas a Problem Bulk carriers generally not design to handle washing water Adequate port reception facilities for washing water MARPOL Annex V (Garbage) and Cargo Residues Recent special areas Gulfs Area became effective in August 2008 Mediterranean Area became effective May 2009 Reception Facilities in Special Areas (Gulf and Med) PRF must be in place before special area becomes effective MEPC 59 Intercargo and BIMCO paper Circular issued (MEPC.1/Circ. 675) Next steps Continuation of review of Annex V Possible IMSBC Code reference to discharge requirements? Design Issues Handling hold washing water Can be problematic Holding tanks Pumps – large particles Cargo properties Coatings (PSPC?) Ballast water management systems Hold cleaning systems Possible treatment systems Design Issues Design Issues Bulk Carrier Loading Rates Terminal requirements Buoyant market → queuing → optimising loading Ponta da Madeira - Brazil 16 000 t/hr Minimum ballast 14 hr turnaround Intercargo Survey Key Findings: 85% of masters indicated that they considered such a rate of loading to be beyond the safe operational limits of their vessel: Manoeuvrability Hull structure Two thirds of respondents stated they had concerns with regard to structural stresses if loading at such a rate. Validation of Masters Views Manoeuvrability Study – BMT SeaTech Concurred with Masters opinion ABS study Confirmed many risks Submission of paper to IMO MSC 84 (MSC 84/INF.8) Referred to DSC 13 Considered by Correspondence Group reviewing BLU Code Reports to