A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades.Centuries ago, windmills usually were used to mill grain (gristmills), pump water (windpumps), or both.[3] The majority of modern windmills take the form of wind turbines used to generate electricity, or windpumps used to pump water, either for land drainage or to extract groundwater. Wind power is the use of air flow through wind turbines to mechanically power generators for electric power. Wind power, as an alternative to burning fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation, consumes no water, and uses little land.The net effects on the environment are far less problematic than those of nonrenewable power sources. Wind power gives variable power, which is very consistent from year to year but has significant variation over shorter time scales. It is therefore used in conjunction with other electric power sources to give a reliable supply. As the proportion of wind power in a region increases, a need to upgrade the grid, and a lowered ability to supplant conventional production can occur.[7][8] Power-management techniques such as having excess capacity, geographically distributed turbines, dispatchable backing sources, sufficient hydroelectric power, exporting and importing power to neighboring areas, or reducing demand when wind production is low, can in many cases overcome these problems.[9][10] In addition, weather forecasting permits the electric-power network to be readied for the predictable variations in production that occur

1. Windmill
PRESENTED BY
MD RIAD BADHON
ID :- TE 1707080

2. Contents
 What is windmill ?
 What is wind power ?
 How does it work ?
 General mechanism of windmill
 Can we use it in the river ?
 Advantages of windmill
 Disadvantages
 Conclusion

3. What is Windmill ?
A windmill is a mill that converts the energy of wind into rotational
energy that means it uses wind power and converts it to electricity

4. What is Wind power ?
 Wind power is the use of air flow through wind turbines
to mechanically power generators for electric power
 It is almost built in the open field where so much wind flows

5. How does it work ?
 A wind turbine works the opposite of a fan.
 wind turbines use wind to make electricity.
 The wind turns the blades, which spin a shaft, which connects to a
generator and makes electricity
 We know that generator is a device that converts mechanical
energy obtained from an external source into electrical energy as
the output

6. Video of the mechanism of Windmill

8. General mechanism of Windmill

9. Can we use windmill in the River ?
We can use it in the river because there flows so much wind and it is
very easy to rotate the turbine

10. Advantages
 Wind power is cost-effective.
 Wind creates jobs. The U.S. wind sector employed more than 100,000
workers in 2016
 Wind is a clean fuel source. Wind energy doesn't pollute environment
 It is sustainable

11. Challenges of Windmill
 Turbine blades could damage local wildlife
 Turbines might cause noise and aesthetic pollution
 Good wind sites are often located in remote locations

12. Can we built windmill to produce
electricity in our country ?
 We can make the best uses of our open field
 we can also built it on the sea shore
 We all know the lacking of electricity in our country we should use
this method easily
 The modern country has made the proper use of it

13. Conclusion
There are so many natural resources . Wind is also a natural resource
,by using Windmill we can produce electricity .We can best use of it
for our various purposes and development.

14. Have you any question ?

15. THANK YOU