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논문 기본 정보

자료유형
학술저널
저자정보
금하영 (영남대학교) 손유라 (영남대학교) 양정훈 (영남대학교)
저널정보
대한건축학회 대한건축학회논문집 大韓建築學會論文集 第37卷 第5號(通卷 第391號)
발행연도
2021.5
수록면
141 - 151 (11page)

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초록· 키워드

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The purpose of this study is to analyze cross contamination between the outdoor fresh air inlet and exhaust of the heat exchanger in apartment house using CFD. According to the current rules, the degree of cross-contamination according to the shape of the ventilation cap, external wind speed, and wind direction installed was defined as the recirculation rate. As a result, the recirculation rate was up to 30% when a cap of adverse wind prevention was used. In the case of using a round wall-mounted ventilation cap, the recirculation rate was low with less than 10%. Both ventilation caps were analyzed to have a high recirculation rate from a specific area for each wind direction. In the case of the frontal wind, the recirculation rate was high at both ends of the building, the center of the building in the case of the rear wind, and the right side of the building in the case of the lateral wind. According to CRP2 analysis, wind speeds (0.5 ㎧, 1 ㎧) that caused the most cross-contamination are affected by air currents emitted from exhaust located just above not the outside airflow. In the improvement plan, the effect was shown in the form of an exhaust vent protruding alone or both the outdoor fresh air inlet and exhaust protruding. Each confirmed a reduction of up to 70 to 60 per cent.

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Abstract
1. 서론
2. CFD 해석 개요
3. CFD 해석 결과
4. 배기의 재유입률 저감을 위한 개선 방안
5. 결론
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