한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2013년도 추계학술대회 논문집
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- Pages.775-780
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- 2013
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- 1598-2548(pISSN)
초박형 노트북 냉각 터보팬의 유동 및 소음 분석
Anallysis of the flow and noise characteristics of small turbo fan in a ultra slim note PC
- Jeon, W.H. ;
- Lim, T.G. ;
- Minorkkawa, Gaku (Hosei Univ., Dept, of Mech. Eng.) ;
- Miyahara, Masaharu (Nippon Keiki works, Ltd.)
- 발행 : 2013.10.27
초록
In recent years, a notebook like an ultrabook gets thinner. Its thickness causes problems in cooling fan performance, system installation condition, and so on. In this study, we installed a small turbofan in notebook system with very narrow gap in order to generate similar condition to a real product. Experiments were performed to measure the fan's performance and the flow and noise characteristics, its results were compared with computational ones. Prediction of P-Q curve using CFD showed under about 5% error in high flow rate and its trend was agreed with experimental one over the flow field. Experimental data to measure the noise at a distance of 100 mm from a rotation axis direction of an impeller corresponded well with computational ones of broadband and BPF noise. The noise experiments to measure at a distance of 100 mm from a rotation axis direction of an impeller corresponded well with computational ones of broadband and BPF noise. Especially, tip part of impeller blade and part of exit and bottom near in an analysis by a commercial program(FlowNoise).