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논문 기본 정보

자료유형
학술저널
저자정보
서민성 (서울과학기술대학교) 박창용 (서울과학기술대학교)
저널정보
대한설비공학회 설비공학논문집 설비공학논문집 제31권 제9호
발행연도
2019.9
수록면
391 - 403 (13page)
DOI
10.6110/KJACR.2019.31.9.391

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초록· 키워드

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The objective of this study was to carry out a simulation study to estimate the change of cooling capacity at a power plant ACC (air-cooled condenser) with the variation of air velocity distribution and heat transfer enhancement on water and air side. As the input variables at the simulation model, average air velocity and air inlet temperature were 3 m/s and 36℃, respectively. Water inlet quality and mass flux were 0.9 and 3.31 kg/m2s, respectively. Five cases of the air velocity distribution were considered in this study, and the simulation results showed that the effect of air velocity distribution on the ACC cooling capacity change was up to 2.66%. The cooling capacity increased by 1.46%, with 100% enhancement of heat transfer at the inner surface of the ACC tube and with the usage of louver fins with 3 mm fin pitch under a uniform air velocity distribution condition. However, it was predicted that a 23.4% reduction of the ACC tube length was possible to perform identical cooling capacity with the heat transfer enhancement. The effect of the heat transfer enhancement on the cooling capacity was changed with the variation of air velocity distribution.

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Abstract
1. 서론
2. 해석 방법
3. 해석 결과
4. 요약 및 결론
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UCI(KEPA) : I410-ECN-0101-2019-553-000965483