Study of Hazard Identification and Consequence Assessment of Flammable Gas Facilities and Development of Methodology to Find Failure Data

Abstract

Risk assessment is one attempt to identify and to evaluate the risk in order to develop control measures that reduce the risk. The assessment is either conducted in qualitative or quantitative approach depending upon the requirements. One of the key step in risk assessment is frequency analysis. In this study an attempt is made to enhance the frequency estimation combining existing data and statistical tool. The key elements of quantitative risk assessment of consequence analysis, and frequency analysis of accident scenarios are critically evaluated. In order to understand the consequences and estimating frequency, seven flammable gas facilities were selected for this study - three LPG facilities, two NG facilities and two Hydrogen facilities that handle Hydrogen in a gaseous and liquid state. In summary it is concluded that a QRA can be a useful tool for land use planning, layout of equipment and facilities. The safety of a plant or facility is determined to a large extent during process, plant and installation design. newline