서지주요정보
핵연료 소결체의 편심이 핵연료봉 열적성능에 미치는 영향에 관한 연구 = A study on the effect of fuel eccentricity on fuel rod thermal performance
서명 / 저자 핵연료 소결체의 편심이 핵연료봉 열적성능에 미치는 영향에 관한 연구 = A study on the effect of fuel eccentricity on fuel rod thermal performance / 서영근.
저자명 서영근 ; Suh, Young-Keun
발행사항 [서울 : 한국과학기술원, 1986].
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소장정보

등록번호

4103820

소장위치/청구기호

학술문화관(문화관) 보존서고

MNE 8610

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초록정보

This paper deals with the effect of fuel pellet eccentricity on fuel rod thermal performance in steady state and overpower transient condition. In this work, Governing Equations on the fuel pellet region and the clad region were set up in (r,θ) coordinates and solved by the use of Finite Element Method. To consider the variation in gap size with azimuthal angle, the angular-dependent gap heat transfer coefficient is used while concentric geometry is remained. Material properties are considered as a function of temperature and volumetric heat generation rate as a function of radial position. The main assumptions are that the coolant temperature and convective heat transfer coefficient are uniform with azimuthal angle. The results showed the increase of maximum local heat flux at the cladding outer surface and the decrease of maximum fuel temperature due to pellet eccentricity. The increase of local heat flux at cladding outer surface is expected to affect the local DNBR and in turn the uncertainties in minimum DNBR calculation. Pellet eccentricity was found to introduce large asymmetry in fuel pellet temperature and movement of maximum fuel pellet temperature location. This trend was the same for both steady state and overpower transient condition.

서지기타정보

서지기타정보
청구기호 {MNE 8610
형태사항 iii, 81 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Young-Keun Suh
지도교수의 한글표기 : 손동성
지도교수의 영문표기 : Dong-Seong Sohn
학위논문 학위논문(석사) - 한국과학기술원 : 핵공학과,
서지주기 참고문헌 : p. 78-79
주제 Thermal analysis.
Nuclear fuels.
Thermal analysis.
핵 연료. --과학기술용어시소러스
연료 펠릿. --과학기술용어시소러스
연료봉. --과학기술용어시소러스
편심. --과학기술용어시소러스
Nuclear fuel rods.
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