Consider a process system that is operated under four safety barriers: release prevention

barrier $($RPB$),$ dispersion prevention $($DPB$),$ ignition prevention barrier $($IPB$),$ and

escalation prevention barrier $($EPB$).$ The failure probabilities of these barriers are $0\mathrm{.}024,$

$0\mathrm{.}023,0\mathrm{.}035$ and $0\mathrm{.}068,$ respectively.

$($a$)$ Please develop a sequential consequence analysis model.

$($b$)$ Consider the following information on initiating event probability.

Time Probability

$10\mathrm{.}01$

$20\mathrm{.}02$

$30\mathrm{.}05$

$41$

What will be the different consequence occurrence probabilities? Please show your result

in a tabular form.