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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 459 - 465 (7page)
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초록· 키워드
오류제보하기
The goal of this study is to evaluate the effective thermal conductivity and diffusivity ofcontainment walls as heat sinks or passive cooling systems during nuclear power plant(NPP) accidents. Containment walls consist of steel reinforced concrete, steel liners, andtendons, and provide the main thermal resistance of the heat sinks, which varies with thevolume fraction and geometric alignment of the rebar and tendons, as well as the temperatureand chemical composition. The target geometry for the containment walls of thiswork is the standard Korean NPP OPR1000. Sample tests and numerical simulations areconducted to verify the correlations for models with different densities of concrete, volumefractions, and alignments of steel. Estimation of the effective thermal conductivity anddiffusivity of the containment wall models is proposed. The Maxwell model and modifiedRayleigh volume fraction model employed in the present work predict the experiment andfinite volume method (FVM) results well. The effective thermal conductivity and diffusivityof the containment walls are summarized as functions of density, temperature, and thevolume fraction of steel for the analysis of the NPP accidents.
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참고문헌 (10)
참고문헌 신청
B. B. Kanbur / 2013 / Investigating the thermal conductivity of different concrete and reinforced concrete models with numerical and experimental methods / Recent Adv. Mech.
J. Strutt / 1892 / On the Influence of Obstacles Arranged in Rectangular Order upon the Properties of a Medium / Philosophical Magazine
J.C. Maxwell / 1904 / 1831-1879: A Treatise on Electricity and Magnetism / Clarendon Press
K. Cavanaugh / 2002 / Guide to Thermal Properties of Concrete and Masonry Systems / American Concrete Institute
K. Pietrak / 2015 / A review of models for effective thermal conductivity of composite materials / J. Power Technol 95 : 14 ~ 24
J. Strutt / 1892 / On the Influence of Obstacles Arranged in Rectangular Order upon the Properties of a Medium / Philosophical Magazine
J.C. Maxwell / 1904 / 1831-1879: A Treatise on Electricity and Magnetism / Clarendon Press
K. Cavanaugh / 2002 / Guide to Thermal Properties of Concrete and Masonry Systems / American Concrete Institute
K. Pietrak / 2015 / A review of models for effective thermal conductivity of composite materials / J. Power Technol 95 : 14 ~ 24
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