유체기계공업학회:학술대회논문집
- 유체기계공업학회 2004년도 유체기계 연구개발 발표회 논문집
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- Pages.572-577
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- 2004
레인지 후드용 시로코 홴의 성능 향상을 위한 연구
Numerical study on the Performance Improvement of the Sirocco Fan in a Range Hood
- 발행 : 2004.12.01
초록
This paper presents numerical study on the performance improvement of the sirocco fan in a range hood. The performance of sirocco fan means a higher flowrate, a higher static pressure and a lower required motor power in a fixed geometry constraint. Various impeller geometric parameters, such as blade profile, blade diameter, blade thickness profile and blade exit angle, were investigated by numerically and the results were compared with each other to know the effects on the performance. In this approach, the volute geometry were fixed with the original shape. The numerical results show that the blade profile with airfoil shape and small exit blade thickness increases the performance. The blade exit angle shows optimum angle within a varied range. The efficiency of the optimized exit angle was about