Ideas for Projects in nuclear reactor

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  • 8/10/2019 Ideas for Projects in nuclear reactor

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    Ideas for Projects

    1. Consider an uncontrolled severe core damage accident in a CANDU resulting from lossof all heat sinks. Develop and describe the sequence of events up to failure of the shield

    tank or reactor vault and calculate (by hand or !rite your o!n code" the (very"appro#imate timing of each ma$or event. %nclude containment behaviour. Hint: Useenergy balances.

    &. Using the diagram of the 'D'1 trip logic in the overheads in Chapter )ecture of yourhandouts construct and evaluate the fault tree for initiation of a reactor trip on any onesignal. %nclude all system components from the sensor signal to the clutch release.*stimate probabilities of each component and give the reasons for your estimates. (+hereis a generic %A*A reliability database buried in the !eb that may be useful.,

    -. esearch the fire at the Narora generating station in %ndia in 1//-.

    Do a root cause analysis0 place each relevant event on a timeline and classify it asa direct contributing or root cause (give reasons". Discuss the design !ith respect to this event. hat !ere the !eaknesses2

    'trengths2 hat !ould you recommend be done for future stations2 Discuss the performance of the operating staff.

    . A CANDU station is trying to decide !hether or not to put in filtered containmentventing for severe accident (assume it results from a loss of all on3site AC po!er !ith afrequency of 14 35 per year". Develop the cost6benefit case to help them make thisdecision. 7ou !ill need to calculate or research the severe accident consequences in termsof health effects and economic loss the reduction in severe accident frequency and6or

    consequences from the filtered venting and the cost of the back3fit.

    5. Assemble all the information you can find on the numerous incidents in 8apan bet!een1/9: and &444 of inadvertent criticality in ; s. Analyse one of the accidents (using aroot cause technique for e#ample" in terms of defence in depth operator response anddesign6operator interaction. Discuss if the accidents reveal any !eaknesses in the ;design. Discuss the lack of reporting of these accidents (until recently" in terms of safetyculture.

    you can find information on the AC 3944 on the

    U'N C !eb site,. Develop the comparison in depth (e.g. compare overall safety design philosophy the design of each safety system etc.". %t is important to give the reasons fordesign differences not $ust describe them.

    9. ...or any other pro$ect requiring similar levels of originality and of similar difficulty. 7ou!ill need my prior agreement.

    %deas for ?ro$ects 3 'A'+ A.odt &41434