This report contains an analytical examination of cargo spill and fire hazard potential associated with the marine handling of liquefied petroleum gas (LPG) as cargo. Principal emphasis was on cargo transfer operations for ships unloading at receiving terminals, and barges loading or unloading at a terminal. Major safety systems, including emergency shutdown systems, hazard detection systems, and fire extinguishment and control systems were included in the analysis. Spill probabilities were obtained from fault tree analyses utilizing composite LPG tank ship and barge designs. Failure rates for hardware in the analyses were generally taken from historical data on similar generic classes of hardware, there being very little historical data on the specific items involved. Potential consequences of cargo spills of various sizes are discussed and compared to actual LPG vapor cloud incidents. The usefulness of hazard mitigation systems (particularly dry chemical fire extinguishers and water spray systems) in controlling the hazards posed by LPG spills and spill fires is also discussed. The analysis estimates the probability of fatality for a terminal operator is about 10 exp -6 to 10 exp -5 per cargo transfer operation. The probability of fatality for the general public is substantially less. (ERA citation 05:037250)
Fire Safety of LPG in Marine Transportation
1980
216 pages
Report
No indication
English
Water Pollution & Control , Combustion & Ignition , Liquefied petroleum gases , Maritime transport , Chemical spills , Data compilation , Evaluation , Fault tree analysis , Fire extinguishers , Fire fighting , Fire hazards , Fire prevention , Flowsheets , Graphs , Human populations , Materials handling , Mortality , Occupational safety , Probability , Risk assessment , Safety , Tables , Vapors , ERDA/570000 , ERDA/520200 , ERDA/020900 , ERDA/290300
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