United States Department of Transportation
i
Fire Safety Analysis of the 175' WLM(R) Coastal Buoy Tender
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1996-11-01
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[PDF-18.26 MB]
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Abstract:The WLM(R) Coastal Buoy Tender was a small cutter in the preliminary design stage at Marinette Marine Shipyard, Marinette, WI. This report documents the results of a comprehensive fire safety analysis of the design of the WLM(R) conducted under the Small Cutter Fire Protection (SCFP) project and provides a recommended class specific fire protection doctrine. The results of the analysis indicate that all of the compartments in the WLM(R) exceed their established fire safety objectives by a substantial margin with passive, automated, and manual fire protection features in effect. In fact, the analysis indicates that all compartments meet their fire safety objectives with only passive and automated fire protection features in effect. The fire protection doctrine provides: information pertinent to fire science in part A, suggested firefighting policy and guidance which would be provided by the Commandant, U.S. Coast Guard for small cutters in part B, and recommended procedures for combating all classes of fires in all compartments in part C. The Ship Fire Safety Engineering Methodology (SFSEM), as implemented by the Ship Applied Fire Engineering (SAFE) computer program, was utilized as an analytical tool to conduct a comprehensive analysis of the baseline fire safety of the WLM(R) design compared to pre-established fire safety objectives. Various alternatives to the proposed design were studied to gain insight into the relative effect of certain design features on the baseline fire safety. The SFSEM/SAFE has been shown to be a valuable tool to evaluate heretofore incomparable entities such as a better barrier or a more effective firefighting system and quantify their effectiveness. This study demonstrates that it is feasible to use the SFSEM/SAFE to evaluate the fire safety design of a proposed design (as opposed to an actual ship). This would facilitate changes to the fire safety design early in the construction life cycle of a vessel and offer the largest cost savings potential. However, for the WLM(R), it is recommended that a similar fire safety analysis be completed of the actual vessel to verify the results based on the real shipboard conditions versus the assumptions required during the analysis of the design.
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