Reliability analysis and optimization of multistate parallel-serial fuel transportation system in variable operating conditions

The chapter presents reliability analysis of the piping fuel transportation system with a multistate approach and with parallel-series structure including process operation impact. A model of operation process is presented based on evaluated expert data and estimated parameters. The most important reliability characteristics are analysed for the fuel transportation system and its components for example lifetimes, damage intensities, reliability functions or risk functions. The influence of process operation on the system aging was shown by comparing the fuel transportation system without the operation process and including operating conditions. A method of optimizing the reliability of such system is also presented by changing the initial parameters of the operation process.