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논문 기본 정보

자료유형
학술대회자료
저자정보
정의국 (한국에너지기술연구원) 김종규 (한국에너지기술연구원) 강용혁 (한국에너지기술연구원) 부준홍 (한국항공대학교)
저널정보
한국태양에너지학회 한국태양에너지학회 학술대회논문집 한국태양에너지학회 2010년도 춘계학술발표대회 논문집
발행연도
2010.4
수록면
219 - 226 (8page)

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초록· 키워드

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Heat transfer analysis results were shown for the solar thermal storage system which used heat pipe array. The thermal storage system was composed of thermal storage tank and charging/discharging heat exchanger by connection with the heat pipes. Heat pipe heat exchanger was attached to system, and could carry out charging and discharging to thermal storage tank at the same time. Height of the thermal storage tank was 600 ㎜, and that of the charging/discharging heat exchanger was 400 ㎜. Length of the heat pipe was the same as the total height of thermal storage system, and outer and inner diameter were 25.4 ㎜(O.D.) and 21.4 ㎜(I.D.) respectively. Diameter of the circular was 43 ㎜(O.D.), and fin geometries were considered as the design parameters. High temperature phase change material(PCM), KNO₃ was charged to storage tank to adjust melting temperature. Energy relations between heat exchanger and thermal storage tank were defined by the thermal resistance and node temperature. Physical transient equations of the heat pipe heat exchanger/thermal storage and PCM was modeled with energy conservation. Furthermore, melting/solidification phase change interface radius were calculated based on latent and sensible heat. Thermal storage system sizes satisfying inlet and outlet conditions of the charging/discharging heat exchanger were predicted according to heat pipe fin pitch variation of the thermal storage. Maximum and minimum heat pipe row was predicted to 899 and 808 respectively.

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Abstract
1. 서론
2. 히트파이프 축열시스템의 수학적 모델링
3. 결과 및 토론
4. 결론
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UCI(KEPA) : I410-ECN-0101-2010-563-003376919