경사지게 설치된 평행류형 알루미늄 열교환기의 공기측 전열 성능 (Air-side Performance of Aluminum Heat Exchangers at Different Inclination Angles)

서지정보

· 발행기관 : 대한설비공학회
· 수록지 정보 : 설비공학 논문집 / 20권 / 3호 / 181 ~ 188페이지
· 저자명 : 김도영, 조진표, 김내현, 박내현, 황준현

초록

The effect of inclination angle on the heat transfer and pressure drop characteristics of the brazed aluminum heat exchangers is experimentally investigated. Three samples having different fin pitches (1.25, 1.5 and 2.0mm) were tested. Results show that heat transfer coefficient is not affected by the inclination angle. However, the friction factor increases as the inclination angle increases with negligible difference between the forward and backward inclination. Both the heat transfer coefficient and the friction factor are the smallest at Fp=1.5mm, followed by Fp=2.0mm and 1.25mm. Possible explanation is provided considering the louver layout. Comparison with existing correlations is also made.

영어초록

The effect of inclination angle on the heat transfer and pressure drop characteristics of the brazed aluminum heat exchangers is experimentally investigated. Three samples having different fin pitches (1.25, 1.5 and 2.0mm) were tested. Results show that heat transfer coefficient is not affected by the inclination angle. However, the friction factor increases as the inclination angle increases with negligible difference between the forward and backward inclination. Both the heat transfer coefficient and the friction factor are the smallest at Fp=1.5mm, followed by Fp=2.0mm and 1.25mm. Possible explanation is provided considering the louver layout. Comparison with existing correlations is also made.

참고자료

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