Estimation of Fuzzy Reliability: A Case Study for Flash Vessel in Ammonia Storage Tank
Satish S. Salunkhe and Ashok Deshpande
Fault tree analysis is one of the most effective techniques for estimating the frequency of occurrence of hazardous events in probabilistic risk assessment study. The uncertainty present in fault tree evaluation can also be modeled using fuzzy set-theoretic operations. In this paper, we have attempted to estimate reliability of hazardous event via Top Event Probability (FTEP) in fuzzy fault tree analysis. The case study relates to flash vessel in an ammonia tank in a large Fertilizer complex in Mumbai, India.
Keywords: Fault teee analysis, fuzzy probability, risk assessment, fuzzy reliability, flash vessel in amonia tank, tanaka fuzzy arithmetic operator