Aerogenerator

Aerogenerator- types, working, places where they are installed

1. AEROGENERATOR
Presentation
on

Submitted to:
Dr. S. S. Kapdi

Prepared By:
Kratika Khede(07-0221-2015),
Gohil Tarun(07-0219-2015)
6
TH
SEM 2018

2. ØDefinition
ØWorking
ØConstruction
ØTypes of Turbines
ØSite Selection
ØIndia : Scenario
Contents

3. Definition
§A wind-driven electric generator
designed for utilization of wind
power on a commercial scale.
§Also called wind turbine.

4. ØPrinciple:
§The kinetic energy of a moving fluid is
converted into mechanical energy by
causing a bladed rotor to rotate.
ØTurbine blades spin from the wind.
ØThis spins a shaft connected to a
generator.
ØThe spinning of the shaft in the
generator makes electricity.
Working

5. ØWind turbines are mounted on a tower to capture the
most wind energy.
ØWind speed varies by height.
ØWind current 100m above the ground dropped in
speed by 10% when its height declined to 50m.
ØProperty is known as wind sheer
§Wind speed increases with height.
§Due to friction at the Earth’s surface.
ØThe Hub heights of modern wind turbines, which
produce 600 to 1,500 kW of electricity, are usually 40
to 80 meters above ground.
Wind Sheer

6. Capacity Vs Size

7. Construction

8. Tiltup
Turbular
Guyed
Lattices
Tower

9. Blades
Single blade turbine
Three blade turbine
Two blade turbine

10. Hub
Shaft

11. Gear box: Wind turbines rotate typically between 40 rpm and 400 rpm.
Generators typically rotates at 1,200 to 1,800 rpm. Most wind
turbines require a step-up gear-box for efficient generator
operation (electricity production).
Blades and rotor: Converts the wind power to a rotational mech. power.
Generator: Converts the rotational mechanical power to electrical power.
Main components of Wind Turbine

12. The portion of the wind turbine that collects energy from the
wind is called the rotor. The rotor usually consists blades.
The blades are attached to the hub, which in turn is
attached to the main shaft.
Rotor

13. Nacelle

14. Types of Turbines

16. Definition
ØHorizontal axis wind turbine
have axis of rotation parallel to
the ground and vertical axis
wind turbine have axis of
rotation perpendicular to
ground.

17. ØHigher wind speeds
ØGreat efficiency
ØAngle of turbine is relevant
ØDifficult access to generator for repairs
Advantages
Disadvantages

19. Definition
ØA vertical axis wind turbine has its axis
perpendicular to the wind streamlines and
vertical to the ground. Also called as
"transverse axis wind turbine" or "cross-flow
wind turbine.“
ØThis arrangement allows the generator and
gearbox to be located close to the ground,
facilitating service and repair.

20. Schematic Diagram of VAWT

21. ØCan place generator on ground
ØYou don’t need a yaw mechanism for wind
angle
ØLower wind speeds at ground level
ØLess efficiency
ØRequires a “push”
Advantages
Disadvantages

22. Site Selection
ØBase on Wind velocity in prevailing area
by considering data of last 5 year of wind
velocity
ØBase on latitude of place.
ØCost of land
ØLocal condition
ØNear to electricity grid
ØTerrain of rain

23. India : Scenario
Ø As of 28 February 2018 the total
installed wind power capacity was
32.96 GW.
ØIndia is the fourth largest installed wind
power capacity in the world.
Ø52.67 TWh generated in the year
2017-18, which is nearly 3% of total
electricity generation.

25. ØMuppandal wind farm in Kanyakumari,
Tamil Nadu

26. Windmills on the Tirumala
hills in Andhra Pradesh
Wind turbines midst of
India's agricultural farms
A wind farm in RajasthanHybrid in Leh, J&K state