Question
1.An offshore platform consists of three large main power generators (MPGs), two operating and one spare (standby mode). The lifetime of each MPG follows the
1.An offshore platform consists of three large main power generators (MPGs), two operating and one spare (standby mode). The lifetime of each MPG follows the Weibull distribution with beta = 2.3 and theta = 40 years. In a given time, two MPGs are used, while third one can be used to replace a failed unit in 12 days with a cost of $ 5 million. The failure of each additional unit (beyond the one spare) requires the procurement and installation of a brand new transformer with a cost of $ 280 million. Estimate the failure probability of the system
and associated risk with the MPGs over the next 20 years of operation considering two scenarios: (i) spare MPG is available as good as new, and (ii) spare MPG is in failed state.
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