PENGARUH JUMLAH SUDU TERHADAP KINERJA TURBIN ANGIN SUMBU VERTIKAL TIPE DARRIEUS-H NACA 3412 DENGAN SUDUT PITCH 00

Abstract

Potential and utilization of renewable energy in Indonesia is still very small. One
of the renewable energy sources is wind energy. The use of wind turbines, wind
energy is converted into mechanical energy and can then generate electricity
through a generator. Wind turbines are environmentally friendly, inexpensive,
easy to operate and easy to maintain. The purpose of this study was to determine
the effect on the performance of the number of blades and wind speed for the
vertical axis wind turbine type darrieus H with the NACA profile 3412 with a
pitch 0o angle. This study uses an experimental method, with a number of blades
and varying wind speeds. The number of blades given is 2 units, 3 units and 4
units. The speed of the given wind is 3.3 m / s, 3.5 m / s, 3.7 m / s, and 3.9 m / s.
Performance is obtained from the electrical power produced by a generator
mounted on the turbine axis. The results showed that the turbine performance was
influenced by the number of blades. The highest power in the number of blades
was 4 units at a wind speed of 3.3 m / s which resulted in electric power of 5.166
Watt. The lowest electric power is produced on turbines with a number of units of
2 units at a wind speed of 3.3 m / s, which is 3.0173 Watts. The blade is 2 units
and 3 units, at a wind speed of 3.3 m / s; 3.5 m / s; 3.7 m / s and 3.9 m / s, the
electrical power produced is relatively the same, while in blades 4 units, the
difference in wind speed (3.3 m / s; 3.5 m / s; 3.7 m / s and 3.9 m / s) produce a
difference in the electrical power produced