| Title |
A Study on Air Flow Analysis in Vertical-axis Wind Turbine |
| Authors |
이기선(Lee, Ki-Seon) ; 박정철(Park, Jung-Cheul) |
| DOI |
https://doi.org/10.5370/KIEEP.2017.66.4.158 |
| Keywords |
Vertical-axis ; Wind turbine ; Main-blade ; Sub-blade ; The power coefficient |
| Abstract |
This paper did basic study on the vertical-axis wind turbine. Namely, This paper was try to find the optimum conditions by using the ANSYS CFX simulation program through the changes of the main-blade angle and sub-blade angle. Main-blade Shape #4 angle 45^{\circ} compared to others Shape angle 0^{\circ} was increased by 157.2[%] to 263.2[%] in the power output and was increased by 110[%] to 250[%] in the power coefficient. Also, when the Shape #5 Fin length of main-blade doubles, because the power output was 70.8[%] compared to Shape #1 and 27.5[%] compared to Shape #4, and the power coefficient was 60[%] compared to Shape #1 and 28.6[%] compared to Shape #4, the power output and the power efficiency were rather reduced. The output current of Shape #4 was increased 109.9[%] compared to Shape #1 and increased 250[%] compared to Shape #5, and The output voltage of Shape #4 was increased 22.5[%] compared to Shape #1 and increased 3.7[%] compared to Shape #4. |