O T OThe rotary car dumper dumps 200,000 ore cars per year.There were two derailments in the first week of operation due to partially dumped ore cars (PDOC).a) Use an event tree to determine the probability of a partially dumped ore car.The OCD company quickly realised that they would not be able to sustain the costs of two derailmentsper week. They hired Steve. Steve's job is to monitor a video feed of the post-dumped ore cars andto re-dump any that he considers to be partially dumped.Steve's probationary period was 3 months. At Steve's performance review, it was reported that hehad performed 30 re-dumps, but still had 2 derailments occur.b) Add Steve to your event tree determined in (a) and identify Steve's performance ina. Correctly identifying a partially dumped ore car; andb. Correctly identifying a fully dumped ore car.The OCD company knows that Steve is doing the best job he can, but the risk of continued derailmentsis not tolerable. Their tolerable rate of derailments is once per decade. They have also set a target ofone unnecessary re-dump per day.A low-demand control function is required that reduces the derailment rate and spurious dumpingrate to a tolerable level.c) Add a layer of protection (the control function) to the event tree that acts in a loo2arrangement with Steve. Identify the integrity requirements to meet the:a. Derailment target.b. Unnecessary re-dumping target (spurious trip rate).d) What is the Safety Integrity Level (SIL) of the required safety function?Low-demand Safety SystemSILPFD.vE2 10 to < 10*2 104 to < 102 10 to < 102 10 to < 101421e) What proof test interval would you choose for testing the control function?FiltersAdd a caption.> My group

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Answered: The rotary car dumper dumps 200,000 ore…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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