Predictive Modeling of Gas Leak Threat Zones in City Gas Distribution Network Using Aloha

Abstract

Natural gas is indispensable for urban energy supply in major Indian cities, transported through intricate pipelines that pose inherent risks such as gas leaks. This paper employs historical accident data and the Areal Locations of Hazardous Atmospheres (ALOHA) software to predict gas leak threat zones at pressure reduction stations. Methodologies include scenario selection, condition analysis, and accident modeling using ALOHA, focusing on jet fires. This paper also emphasizes the influence of environmental factors on fire characteristics and thermal radiation distances. The results underscore the criticality of stringent installation standards and effective emergency responses in mitigating gas leak risks. Recommendations are provided for enhancing safety measures and emergency preparedness in city natural gas distribution network.