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논문 기본 정보

자료유형
학술대회자료
저자정보
정일영 (한국해양대학교) 윤상국 (한국해양대학교) 주홍진 (인하대학교) 곽희열 (한국에너지기술연구원)
저널정보
한국태양에너지학회 한국태양에너지학회 학술대회논문집 한국태양에너지학회 2011년도 추계학술발표대회 논문집
발행연도
2011.11
수록면
68 - 73 (6page)

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초록· 키워드

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This study was performed numerical analysis in order to analyze liquid film flow of heat exchanger tube arrangement and configuration of evaporative multi effect distillation system using medium-temperature. Simulation was accomplished the two-dimensional calculations using commercial analyses program FLUENT based on the FVM(finite volume method).
Fresh water generator of this study used Shell & Tubes heat exchanger with Cu_Nitube, configuration of tube used bare tube and corrugated tube, and arrangement of tube used in-line array and staggered array. Performance of heat exchanger through the formation of liquid film was compared and analyzed. Liquid film flow occurred that falling on heat exchanger tube wall.
Result of simulation showed that liquid film thickness of in-line arrangement was found0.57mm with bare tube and 0.67mm with corrugated tube, respectively. And liquid film thickness of staggered arrangement was found 0.39mm with bare tubes and 0.62mm with corrugated tubes, respectively.
Liquid film thickness of corrugated tube showed thicker than bare tube, but heat transfer rates of corrugated tube showed higher than bare tube. The reason was considered that surface area of corrugated tube was wider than bare tube. And liquid film thickness of staggered arrangement showed thinner than in-line arrangement, so thermal performance of staggered arrange mentshowed higher than in-line arrangement.

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Abstract
기호설명
하첨자
1. 서론
2. 이론적 배경
3. 액막유동의 CFD 해석
4. 결과 및 고찰
5. 결론
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UCI(KEPA) : I410-ECN-0101-2013-563-001382686