Preliminary Study on Safety Performance Evaluation of Petrochemical Plant Layout

Due to the gathering of hazard materials, petrochemical plant always has extrusive fire and explosion risk. Unreasonable plant layout could bring high accident frequency, secondary accident possibility, and immense financial loss. The expected characters of a safe layout were analysed at first in this work, and then four key metrics were proposed to evaluate the safety performance of the layout. These four metrics are accident triggered likelihood degree, improper degree of domino risk, improper degree of facility damage risk/human injury risk and evacuation difficulty degree. Based on the character analysis, the mathematical representations of the four metrics were also preliminarily analyzed.