Probabilistic oil outflow analysis of alternative tanker designs. Addendum 1. Final report
This report is an addendum to Probabilistic Oil Outflow Analysis of Alternative Tanker Designs, U.S. Department of Transportation, U.S. Coast Guard, Report No. CG-D-14-92, July 1992. It covers the effects of design modifications to the Double Hull, Mid-Deck and Underpressure (MARPOL) designs for the 272,000 DWT size, and clarifies the evaluation made of the underpressure concept. The design modifications were made so that these ships would meet the requirements of Regulation 23 of the MARPOL 73/78 Annex for hypothetical outflow of oil. Results for two other designs, the Coulombi Egg and POLMIS, are also presented. A probabilistic approach has been adopted for these analyses, utilizing statistical data for tanker casualties developed for the International Maritime Organization. Both side and bottom damage were considered. Loss calculations were based on hydrostatic balance principles. Initial oil loss at impact and dynamic losses due to current and waves were computed based on model tests. Plots illustrating the cumulative oil outflow for each damage condition are presented. Three figures of merit were computed for each damage condition. These are: the probability of zero outflow, the mean outflow, and the extreme (1/10) outflow.
- Research Organization:
- Herbert Engineering Corp., San Francisco, CA (United States)
- OSTI ID:
- 6780247
- Report Number(s):
- AD-A-257714/6/XAB; CNN: DTCG39-92-C-E00412
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020900 -- Petroleum-- Environmental Aspects
022000* -- Petroleum-- Transport
Handling
& Storage
COMPILED DATA
COMPUTER CALCULATIONS
DAMAGE
DATA
DESIGN
DYNAMICS
ENERGY SOURCES
EVALUATION
FLUID FLOW
FOSSIL FUELS
FUELS
GAS FLOW
HYDROSTATICS
HYPOTHESIS
INFORMATION
LOSSES
MECHANICS
MODIFICATIONS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
OIL SPILLS
PETROLEUM
PROBABILITY
REGULATIONS
SHIPS
SIZE
STATISTICAL DATA
TANKER SHIPS
TRANSPORTATION SECTOR
US DOT
US ORGANIZATIONS