PA FIS Approach to Prioritize Risks in a Chemical Industry

In this paper, a Fuzzy Inference System (FIS) based risk analysis tool is presented to prioritize the identified potential risks at a chemical industry. The tool uses a Bow-tie analysis and a Fuzzy Inference System to analyze and prioritize a risk by computing its score. The risks, risk factors, and impacts are identified based on reported events and expert's knowledge. Bow-tie analysis is used to determine the factors that cause the occurrence of a risk and the impacts of a risk. Fuzzy estimates for the risk factors and impacts are obtained from an expert. The developed Mamdani FIS is used to compute the risk score. The developed FIS risk analysis tool is applied to assess the risks in a chemical industry. Based on the risk score, risks ranking is done in the chemical industry which helps in taking the required measures in advance to avoid the occurrence of risk events.