A case study of consequences analysis of ammonia transportation by rail from Gurun to Port Klang in Malaysia using Safti computer model

Hassan, C.R.C. and Puvaneswaran, B. and Abdul Raman, A.A. and Mahmood, N.Z. and Hung, F.C. and Sulaiman, N.M. and Puvaneswaran, A. and Balasubramaniam, L. (2009) A case study of consequences analysis of ammonia transportation by rail from Gurun to Port Klang in Malaysia using Safti computer model. Journal of Safety Health &Environmemt Research, 6. pp. 1-19. ISSN 2168-1368

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Abstract

There are many ways of describing the quantitative risk assessment (QRA) methodology, but in general, the basic steps include: System Definition, Hazard Identification, Frequency Analysis, Consequence Modeling, and Risk Calculations and Assessment. The present study is aimed at the Consequence Analysis, which was an integral part in the QRA for the transportation of ammonia by rail from Gurun to Port Klang. The software package SAFETI has been used to model the resulting behavior of the released ammonia and the extent of the damage expressed in terms of distance to certain effect levels. Besides, sensitivity analysis was also carried out to identify the impacts of atmospheric conditions on ammonia gas dispersions. The results indicated an increase in the ammonia gas dispersion distances for releases at higher atmospheric temperatures of lower atmospheric humidity (e.g. for rupture case with wind speed 3m/s, at 15oC, the dispersion distance was 835.4 m, while at 35oC, it increases to 866.2 m). However, further analysis of the effects atmospheric humidity on the ammonia gas dispersions was required to determine the differences in the trend for the 25 mm and 100 mm leak cases compared to the rupture case.

Item Type: Article
Uncontrolled Keywords: Consequence Analysis, Quantitative Risk Assessment, Rail, Transportation of Ammonia, Sensitivity Analysis.
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: miss munirah saadom
Date Deposited: 21 Jul 2014 00:38
Last Modified: 13 Sep 2017 08:18
URI: http://eprints.um.edu.my/id/eprint/10783

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