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자료유형
학술저널
저자정보
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제43권 제1호
발행연도
2011.1
수록면
89 - 98 (10page)

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The construction technology for reactor vessel internals (RVI) modularization is one of the most important factors to beconsidered in reducing the construction period of nuclear power plants. For RVI modularization, gaps between the reactorvessel (RV) core-stabilizing lug and the core support barrel (CSB) snubber lug must be measured using a remote methodfrom outside the RV. In order to measure RVI gaps remotely at nuclear power plant construction sites, certain coretechnologies must be developed and verified. These include a remote measurement system to measure the gaps between theRV core-stabilizing lug and the CSB snubber lug, an RVI mockup to perform the gap measurement tests, and a newprocedure and schedule for RVI installation. A remote measurement system was developed previously, and a gapmeasurement test was completed successfully using the RVI mockup. We also developed a new procedure and schedule forRVI installation. This paper presents the new and improved installation procedure and schedule for RVI modularization.These are expected to become core technologies that will allow us to shorten the construction period by a minimum of twomonths compared to the existing installation procedure and schedule.

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