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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.

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참고문헌 (31건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 Webb, R.L., (1992) Air-side performance of enhanced brazed aluminum heat exchangers, ASHRAE Trans 미소장
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5 Heat transfer and pressure drop characteristics of flat tube and louvered plate fin surfaces 네이버 미소장
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7 Air Side Performance of Brazed Aluminum Heat Exchangers 네이버 미소장
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9 Prediction of Heat Transfer and Friction for the Louver Fin Geometry 네이버 미소장
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12 Suga, K., (1990) Numerical analysis on two dimensional flow and heat transfer on louvered fins using overlaid grids, JSME International Journal 미소장
13 Achaichia, A., (1994) Numerical Investigation of flow and friction in louver fin arrays, Proceedings of the Tenth International Heat Transfer Conference 미소장
14 Flow transition in a multilouvered fin array 네이버 미소장
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30 Kim M.H., (2002) Air- side thermal hydraulic performance of multi-louvered fin aluminum heat exchangers, Int. J. Refrigeration 미소장
31 A generalized friction correlation for louver fin geometry 네이버 미소장