Determine the lower and upper bounds of prevention barriers failure probabilities to predict the accident causation probability

Any institutions or industries may have their own internal guidelines in order to reduce the risk of accidents and controlling the hazards surround the area. But, the current available guidelines might be to general and not able to give the probability of failure for the equipment. This study is focusing on reactor in Pilot Plant building located at Universiti Teknologi MARA (UiTM) Shah Alam which is Continuous Stirred Tank Reactor (BP 100). The objectives of this research are to determine the boundaries of prevention barriers failure probabilities and directly predict the accident causation probability and also to provide a software those can easy the risk assessment. The Fault Tree Analysis Diagram has been used as the risk assessment method. Then, the Fault Tree Analysis has been done to the Continuous Stirred Tank Reactor (BP 100) in order to predict the condition that may happen if it is undergo overheating (more than 50℃). Fault Tree Analysis Software of Continuous Stirred Tank Reactor (BP 100) has been constructed using Microsoft Visual Basic 6.0. Resulting from the constructed software, it is shows that overheating of Continuous Stirred Tank Reactor does not lead to the failure of overall equipment because the reliability value is 0.9991 compared to probability value which is 8.0108×10-4