Quantitative Fire Risk Assessment of Gas Pipeline Leakage

Abstract:

Fire risk of gas pipeline leakage is high.The factors contributing to gas pipeline leakage most are third party damage, corrosion, design and incorrect operation. The accident consequences of gas pipeline leakage and quantitative risk assessment method of gas pipeline leakage consequence are analyzed. In order to achieve quantitative fire risk assessment of gas pipeline leakage, flash fire model, vapor cloud explosion model and thermal radiation damage criterion are analyzed. Firstly, the gas leakage quantity is estimated. Then, the heat radiation estimate flux, the thermal dose and damage range are got by using flash fire model, vapor cloud explosion model and the thermal radiation damage criterion respectively.Combined with an example of gas pipeline, damage ranges of different disaster patterns are estimated according to different gas pipeline leakage pattern. Through comparing the accident consequences of gas pipeline leakage, this paper provides some reliable scientific references for gas pipeline management departments.

• Periodical: Applied Mechanics and Materials (Volumes 635-637)
• Pages: 402-406
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.635-637.402
• Online since: September 2014
• Authors: Jing He, Li Jing Zhang*, Gang Tao, Xin Qi Dai
• Keywords: Flash Fire, Gas Pipeline, Leakage, Quantitative Risk Assessment, Vapor Cloud Explosion

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