PSI - Issue 41

Haris Nubli et al. / Procedia Structural Integrity 41 (2022) 343–350 Nubli et al. / Structural Integrity Procedia 00 (2022) 000 – 000

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5. Conclusions This paper has been presented the application of CFD technology for accident by flammable gas such as gas releases and VCEs. In addition, the problems on the cleaner fuel of marine uses has also been discussed. Here, several points can be concluded as follows, 1. Both gas release and VCE analyses can adopt the deterministic and probabilistic approaches to determine the scenario. For the probabilistic approach, the historical data in frequency can be used. The random sampling methods such as the Latin Hypercube and Monte-Carlo samplings to preserve the distribution of the data. 2. The critical zone can be applied as a result of the gas release simulation. The distance of the gas cloud in the flammability limit is used to determine this zone. The critical zone is designed to control the personnel that enters this region and its activities. 3. The obstruction and congestion in the object of the VCE simulation can affect the magnitude of the blast overpressure. Thus, the VCE simulation is useful to determine the position of equipment or another object in the design of the gas processing layout. In the probabilistic based scenario, the exceedance frequency can be generated by utilizing the gas explosion frequency, ignition probability and its peak overpressure in each scenario. Overall, the implementation of CFD codes in the gas release and VCE simulations is useful since it is cheaper and saves a lot of time. Various parameters are also can be involved in the simulation that helps to find an adequate result. Adachi, M., Kosaka, H., Fukuda, T., Ohashi, S., Harumi, K., 2014. Economic analysis of trans-ocean LNG-fueled container ship. Journal of Marine Science and Technology, 19(4), 470-478. Baalisampang, T., Abbassi, R., Garaniya, V., Khan, F., Dadashzadeh, M., 2019. Modelling an integrated impact of fire, explosion and combustion products during transitional events caused by an accidental release of LNG. 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