| Title |
Effects of a Guide Fin Blade on the Flow Characteristicsin a Ventilating Axial Fan |
| Authors |
박홍광(Hongkwang Park) ; 이지근(Jeekeun Lee) ; 노병준(Byungjoon Rho) |
| Keywords |
축류형 팬 ; 블레이드 ; 가이드핀 ; 원주 수직방향 핀 ; 원주방향 핀 Axial fan ; Blade ; Guide fin ; Stem fin ; Radial fin |
| Abstract |
The effects of a guide fin blade on the flow characteristics in a ventilating axial fan were investigated experimentally. The guide fins were setup onto the pressure surface of the blade, and their effects on the flowrate were evaluated. Two types of the guide fin blade were designed. One is the stem fin blade, and the other is the radial fin blade. The stem fin is designed normal to the circumference of a circle, and the radial fin is designed along the circumference of a circle. The results from the guide fin blade fans are compared with that of the blade without guide fins. The position and the geometry of the radial fin setting up on the blade have an effect on the increase of flowrate with the minor sacrifice of rotational speed of the blades. The radial fin positioning at 0.84 times blade diameter shows highest performance in the flowrate. The increase of the blade weight resulting from applying the guide fins shows minor effect on the variation of rotational speed of the blades. |