WIND MILLSWIND MILLSTopicTopic: generation of energyProblemsProblems: How the characteristics of the

blades and the rotor influence the electric power?

Realized by:Realized by: William PONCE and Jeremie JANEQUINJANEQUIN

PlanPlan

A] General informationA] General informationB] MaterialB] MaterialC] AerodynamicsC] AerodynamicsD] Number bladesD] Number bladesE] RotorE] RotorF] Scale modelF] Scale modelG] ConclusionG] Conclusion

General informationGeneral information

A] definition ofA] definition of a wind millB] How does a wind millB] How does a wind mill function?C] Different types of windC] Different types of wind mill 1) Horizontal axis 2) Vertical axis

How does a wind mill function?How does a wind mill function?

Horizontal AxisHorizontal Axis

Vertical AxisVertical Axis

The influence of the number The influence of the number of bladesof blades

1]One – bladed

2]Two- bladed

3] Three- bladed

Materials used for the Materials used for the blades of the rotorblades of the rotor

1] GRP ( glass fibre reinforced plastic)2] Carbon fibres3] Wood- epoxy4] Alloys

ProfileProfile A] DimensionA] Dimension 1) Length1) Length 2) Width2) Width B] ProfileB] Profile 1) Generality1) Generality 2) Effect of Wind2) Effect of Wind 3) Arithmetic3) Arithmetic C] OrientationC] Orientation

ROTORROTOR1] operating mode of the rotor2] Rotor at fixed speed3] Rotor at speed semi- variable4] Rotor at variable speed5] Diameter of the rotor