한국해양대학교

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소형 원자로용 고온 고압 판형열교환기 전열판의 구조건전성에 관한 연구

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dc.contributor.advisor 조종래 -
dc.contributor.author 노현석 -
dc.date.accessioned 2019-12-16T03:04:59Z -
dc.date.available 2019-12-16T03:04:59Z -
dc.date.issued 2019 -
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/11830 -
dc.identifier.uri http://kmou.dcollection.net/common/orgView/200000178315 -
dc.description.abstract several countries have been pioneering the development and application of ocean nuclear power plants utilizing the innovative features of Small Modular Reactors. A shell-and-tube heat exchanger has been used as a passive residual heat removal system in a small modular reactor, which functions to reach and maintain the reactor coolant system in a safe shutdown state. However, shell-and-tube heat exchanger require larger space for heat transfer area. Therefore, it is necessary to investigate the applicability of a welded type plate heat exchanger which is excellent in thermal efficiency and can be used at high temperature and high pressure. In this study, We investigated the environment in which the heat exchanger was used and materials that could withstand corrosive characteristic and high temperature and high pressure conditions. Stuctural integrity of the heat transfer plate through finite element analysis is performed. Because it is very important to select finite element modeling and boundary conditions due to the complicated structure characteristics of the heat transfer plate, the feasibility of the shell element was confirmed by comparing the 2-layer solid element and the shell element of the heat transfer plate. In order to verify the effect of contact boundary conditions, 2-layer and 4-layer models were compared and compared with the full model to verify the validity of the 1/4 model. In addition, because of local yielding, elastic – plastic analysis was performed and the most suitable analytical modeling method was selected. The method of evaluating the analysis results was evaluated according to ASME Section VIII Division 2 and the analytical model was structurally safe for the given environmental conditions of the SMR. -
dc.description.tableofcontents 목 차 Abstract ⅳ Nomenclature ⅵ List of Tables ⅶ List of Figures ⅷ 1. 서론 1 1.1 연구 배경 1 1.2 연구 내용 및 목적 3 2. 열교환기 전열판 구조분석 및 응력평가 기준 6 2.1 소형원자로의 잔열제거 열교환기 6 2.2 열교환기 구조특성 8 2.3 전열판 형상 모델링 16 2.4 재료선정 18 2.5 평가기준 20 2.5.1 일차응력 20 2.5.2 이차응력 21 2.5.3 피크응력 21 2.5.4 탄성영역평가 22 2.5.5 탄소성영역평가 24 3. 전열판에 대한 유한요소모델링과 응력해석 26 3.1 솔리드 2-레이어 1/4 탄성 모델 26 3.1.1 해석모델 선정 26 3.1.2 유한요소모델 27 3.1.3 경계조건 29 3.1.4 해석결과 32 3.2 쉘 2-레이어 1/4 탄성 모델 37 3.2.1 해석모델 및 유한요소모델 37 3.2.2 경계조건 및 해석결과 42 3.3 쉘 4-레이어 1/4 탄성 모델 46 3.3.1 해석모델 선정 46 3.3.2 유한요소모델 46 3.3.3 경계조건 52 3.3.4 해석결과 56 3.4 쉘 4-레이어 1/4 탄소성 모델 60 3.4.1 해석모델 및 유한요소모델 60 3.4.2 해석결과 60 3.5 쉘 4-레이어 전체 탄성 모델 66 3.5.1 해석모델 및 유한요소모델 66 3.5.2 경계조건 및 해석결과 70 4. 결론 75 참고문헌 76 -
dc.format.extent 91 -
dc.language kor -
dc.publisher 한국해양대학교 대학원 -
dc.rights 한국해양대학교 논문은 저작권에 의해 보호받습니다. -
dc.title 소형 원자로용 고온 고압 판형열교환기 전열판의 구조건전성에 관한 연구 -
dc.type Dissertation -
dc.date.awarded 2019-02 -
dc.contributor.alternativeName Noh, Hyun Seok -
dc.contributor.department 대학원 기계공학과 -
dc.contributor.affiliation 한국해양대학교 기계공학과 -
dc.description.degree Master -
dc.subject.keyword Structural integrity 구조건전성, small modular reactor 소형 모듈 원자로, welded type plate heat exchanger 용접형 판형열교환기, heat transfer plate 전열판, high temperature and pressure 고온 고압 -
dc.title.translated Structural Integrity Analysis of Heat Plate in Plate and Shell Heat Exchanger used in Small Modular Reactor -
dc.contributor.specialty 판형열교환기 구조해석 -
dc.identifier.holdings 000000001979▲200000001028▲200000178315▲ -
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소형 원자로용 고온 고압 판형열교환기 전열판의 구조건전성에 관한 연구.pdf Download

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