View
13
Download
1
Category
Preview:
DESCRIPTION
wind power
Citation preview
A Seminar on “ Wind Energy and India”
INDEX
1.Introduction
2.Wind energy in India
3.Wind energy mechanism
4.Conclusion
INTRODUCTION1.
Renewable Energy
Renewable energy comes from natural resources and it is not
exhausted with time.
This form of energy doesn’t pollute environment.
It is also called green energy or clean energy.
Why Renewable ?
Fast depleting fossile fuels.
Nuclear energy can't be 100% safe proofed after the Japan Incidence.
Global climate change threatens the economy, national security and the global warming.
Kyoto Protocol, which calls for industrialized nations to take the lead in reducing
greenhouse gas emissions
Kyoto Agreement Global Status
Countries Signed & ratified
Countries Signed & not yet ratified
Countries , not yet decided
Countries , no intention of signing
Types of Renewable Resources
1
2
3
4
5
6
7
Defining Wind Power
Wind power is the conversion of wind energy into a useful form of energy, such as electricity, using wind turbines
Wind energy systems convert the kinetic energy to more useful forms of power
Wind energy continues to be the fastest growing Renewable Energy Source with worldwide wind power installed capacity reaching 318,137 MW
Five nations – China, USA, Germany, Spain, India and EU – account for 80% of the world’s installed wind energy capacity
Comparison
Fossil Fuel Have to be procured &
made usable through laborious & environmentally damaging process
Limited in reserves, expected to be exhausted in coming 60 years
Transportation required, for further processing exposing environment to danger
Wind Energy Usable as it exists
Inexhaustible
Use where it is available
Why Wind Energy ?
Most viable & largest renewable energy resource Plentiful power source Widely distributed & clean Can get started with as small as 100-200 W Produces no green house gas emissions No raw materials & fuels required No pollution No hassles of disposal of waste Quick returns Good alternative for conventional power plants
WIND ENERGY IN INDIA2.
Wind Power In India
The development of wind power in India began in the 1990s, and has significantly increased in the last few years. The "Indian Wind Turbine Manufacturers Association (IWTMA)“ has played a leading role in promoting wind energy in India
As of 2013 the installed capacity of wind power in India was more than 21,210 MW
Wind power accounts for 10% of India's total installed power capacity.
India Wind Power Density Map
State
Gross potential
(MW)
Installed capacity
(MW)Andhra Pradesh 8275 471.45
Gujarat 9675 3196.58
Karnataka 6620 2148.9
Kerala 875 54.8
Madhya Pradesh 5500 395
Maharashtra 3650 3107.45
Orissa 1700 2
Rajasthan 5400 2721.2
Tamil Nadu 9050 7162.88
West Bengal 450 2
Total (All India) 51195 21220
State Wise Wind Power Potential In India
Wind Power Potential In India
India ranks 5th in wind installation in the world
Is at par with World in terms of manufacturing facilities & technologies
Public sectors coming forward for investment
Wind power potential in the country Is more than 50000MW
Present production is 21220 MW
Ministry of new & Renewable Energy targets an addition of 11000MW in 12th five year plan
Plan Objective is to attract new & large independent power producers to wind sector.
Central Govt. Incentives
80 per cent accelerated depreciation on wind farm equipment/devices
10 years tax holiday for wind farms
Custom duty exemption (Notification No. 21/2002-custom dated 01-03-2002)
Excise duty exemption (Notification No. 6/2002- Central Excise andamendments Thereof)
20% additional depreciation under new plant and machinery
Under RGGVY scheme 90% subsidy in case of rural electrification through renewable energy.
3.WIND ENERGY MECHANISM
Types of Wind Turbine(Based on no. of Blades)
Most common design is the three-bladed turbine. The most important reason is the stability of the turbine. A rotor with an odd number of rotor blades (and at least three blades) can be considered to be similar to a disc when calculating the dynamic properties of the machine.
A rotor with an even number of blades will give stability problems for a machine with a stiff structure. The reason is that at the very moment when the uppermost blade bends backwards, because it gets the maximum power from the wind, the lowermost blade passes into the wind shade in front of the tower.
Types of Wind Turbine(Based on axis of rotation)
Vertical axis wind turbine (VAWT)
Horizontal axis wind turbine (HAWT)
VAWT
VAWT(Contd…)
All the Electrical Equipments and gear mechanism are
placed in the ground
Lower starting torque
Difficulty in mounting the turbine
Difference in wind speed
Unwanted fluctuations in the power output
VAWT(Contd…)
HAWT
All the Electrical Equipments and gear mechanism are
placed behind the rotor at the top of the tower
Increased the rotation speed
Operates for wider range of wind speeds
Most of the wind turbines are of HA type.
HAWT(Contd…)
A Typical HAWT
A Typical HAWT(Contd…)
HAWT Mechanism
Rotor
Technical ParametersRated Power (KW) 9 / 10 15 20 - 25 50
Rated Wind speed (m/sec) 12 12 12 12
Number of Blades 2 2 2 3
Rotor dia (Met) 6.5 9.5 12 18
Swept area (Sq met) 30 58 113 226
Blade materialEpoxy / Glass
FiberEpoxy / Glass
FiberEpoxy/Glass
FiberEpoxy / Glass
Fiber
Blade weight (approx) (KGs) 44 64 80 122
Type of Generator Permanent Magnet
Permanent Magnet
Permanent Magnet
Permanent Magnet
Transmission Drive direct Direct drive Direct drive Geared / Direct drive
TowerFixed / Tilting
TowerFixed / Tilting
TowerFixed / Tilting
Tower Fixed
Type of Hub Fixed pitch Fixed pitch Fixed pitch Fixed pitch
Rotor speed at rated wind speed (rpm) 150 100 108 250
Cut-in wind speed (m/sec) 2.5 2.5 3 3
Cut-off wind speed (m/sec) 25 25 25 25
Control system PLC based PLC based PLC based PLC based
Approx Nacelle weight (KGs) 700 1000 1400 2000
Annual Energy output KWH (@ 6m/s) 23,000 38,500 64,000 1,28,000
CONCLUSION
4.
Go for Wind Energy and have a greener, brighter & safer tomorrow
Just don’t blow the future
Thank You !!
Recommended