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المؤلفون: Chulsoo Maeng, Wonho Lee, Yeonho Cho, Jin Seok Park, Myounggoo Lee, Hyun-Min Kim
المصدر: Nuclear Technology. 206:435-443
مصطلحات موضوعية: Nuclear and High Energy Physics, business.industry, 020209 energy, Nuclear engineering, Nozzle, 02 engineering and technology, Modular design, Condensed Matter Physics, CEDM, Small modular reactor, 020303 mechanical engineering & transports, 0203 mechanical engineering, Nuclear Energy and Engineering, Closure (computer programming), 0202 electrical engineering, electronic engineering, information engineering, Environmental science, Head (vessel), business, Reactor pressure vessel
الوصف: An ex-vessel–type control element drive mechanism (CEDM) is installed on the nozzles of a reactor vessel closure head. However, there has been a demand for locating CEDMs inside the reactor...
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::6aeca352ab1d441a0c551527f4fd40e0Test
https://doi.org/10.1080/00295450.2019.1635363Test -
2دورية أكاديمية
المؤلفون: Jinseok Park1 jsbach77@kepco-enc.com, Wonho Lee1, Myounggoo Lee1, Yeonho Cho1, Hyunmin Kim1, Chulsoo Maeng1
المصدر: Nuclear Technology. Mar2020, Vol. 206 Issue 3, p435-443. 9p.
مستخلص: An ex-vessel-type control element drive mechanism (CEDM) is installed on the nozzles of a reactor vessel closure head. However, there has been a demand for locating CEDMs inside the reactor vessel because doing so provides many benefits such as eliminating rod ejection accidents, minimizing pressure boundary penetration, and simplifying the reactor head area structure. Accordingly, an in-vessel CEDM has been developed to operate inside the nuclear reactor. Developing an in-vessel CEDM is very challenging because of the harsh environment of high temperature, high pressure, high radiation, and submerged condition. During intense research work for several years, KEPCO E&C designed an in-vessel CEDM and studied its feasibility by electromagnetic analysis and thermal analysis. Then, a prototype of the in-vessel CEDM was manufactured to prove its performance and operability at normal reactor operating conditions. This paper introduces key design work and validation tests of the in-vessel CEDM including an in-vessel position indicator. [ABSTRACT FROM AUTHOR]