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- W2075471993 abstract "Many offshore platforms are normally exposed to the flammable oil & gas circumstances; hence hydrocarbon fire is a big threat to the offshore platform. Fire accidents on the offshore platform usually occupy a major part of the total risks. Nevertheless, existing methods of fire risk analysis used in the industry are still not intact enough to advisably evaluate the risks related to fire accident especially for supporting structures of process modules. For this reason a new procedure of fire risk analysis is established in this paper to overcome those deficiencies in the existing methods. The new method is constructed through a scenario based probabilistic approach. In the new FRA (Fire Risk Analysis) procedure, the key parameters used for constructing fire scenarios are cautiously considered and discussed in case of causing a conservative judgment. Also, dynamic effect of transient fire accident is properly considered by applying an effective method called ‘snapshot’ during the CFD fire simulation. Furthermore, for investigating the structural failure under the fire, thermal elasto-plastic structural analysis is included in the new FRA. In the former FRAs, the traditional exceedance curve with certain physical variable is used in the frequency analysis to combine the results of fire simulation and fire frequency calculation. The main purpose of using exceedance curve is for deciding a DAL (Design Accidental Load), which is used for structure design against fire accident or even determining of the proper risk mitigation measures e.g. PFP (Passive Fire Protection). However, different from former FRAs, structure response analysis is carried out in the new procedure and the results are taken into consideration through a newly proposed concept i.e. structural cumulative failure frequency. The purpose of proposing cumulative failure frequency in the new FRA can be summarized as following two aspects. One is to avoid the difficulties of applying the identified DAL to the structure analysis in the former FRAs, and other one is to determine the optimized PFP application area for topside structure. For showing the details of new FRA procedure a demo is also demonstrated in this paper." @default.
- W2075471993 created "2016-06-24" @default.
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- W2075471993 date "2014-06-08" @default.
- W2075471993 modified "2023-09-26" @default.
- W2075471993 title "Study on the Probabilistic Scenario Based Fire Risk Analysis of FPSO Topside Module" @default.
- W2075471993 doi "https://doi.org/10.1115/omae2014-23903" @default.
- W2075471993 hasPublicationYear "2014" @default.
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