Presentation About Designing A Simple Windmill For Generation Of Electricity At A Very Small-scale ... (Download It To Get More Out Of It: Animations Don't Work In Preview) ... !

1. Utilization of wind energy for power generation Windmill (Wind turbine Generator)

2. Objective Our objective is to utilize wind energy (non-conventional energy resource) for the generation of electricity. A small-scale windmill (wind turbine) can generate electricity if coupled with a generator and exposed to fast blowing winds.

3. Wind Power It deals with the conversion of wind energy into an-other usable form of energy such as electrical energy, mechanical energy (for pumping water, sailing ships, feeding water to crops) etc.

4. Wind-mill Windmill is a simple dynamic machine used directly to convert kinetic energy from fast blowing winds to rotational energy (mainly to turn shaft or any other assembly). As the wind strikes the blades, it causes the blades to rotate …

5. Principle of WindMill When the wind strikes blades of windmill, kinetic energy of wind is utilized by blades and blades rotate. Rotating shaft is connected to electric generator, which in turn rotates as the shaft does. Mechanical Energy from Shaft Since blades are directly connected to shaft, so blades rotate the shaft. Kinetic Energy from Winds Electrical Energy from Generator

6. Components of Windmill Blades Hub Shaft Electric Generator Main Body Tail Tower Base Electric wires Bulb

7. Assembly of Windmill Wind striking the blades … Blades rotate … Electricity generated … Blades Hub Shaft Generator Body Tail Bulb Tower ‘n’ Base

8. Estimated Costs andProposed Materials Blades Proposed material for blades is Aluminum, PVC plastic (Aluminum foil’s price is Rs. 300 per kg, while PVC’s is 500 per kg) or Cedar wood. Hub Proposed material is ‘Steel’ or Wood (~ Rs. 200). Shaft Proposed material is ‘PVC’ (~ Rs. 150). Main Body Proposed material is ‘Aluminum sheets’ or ‘Wooden case’ (~ Rs. 500).

9. Estimated Costs andProposed Materials Tail PVC is the most suitable material (~ Rs. 150). Tower and Base PVC, Steel or Wood may be used here (Rs. 400). Electric motor (as generator) DC motor, with about 1000 rpm and 12 to 18 volts (~ Rs. 400). Bulb and Wires 2 copper wires and 1 filament bulb (LEDs are also under consideration) (~Rs. 50). Total cost ranges from Rs. 2000 to 2500.

10. Specifications & Expectations We may use 3 or 4 blades for our windmill design (of about 18’’ to 24’’ length). We shall use dc motor as generator rated against 12 to 18 VDC. We hope to generate from 2 V to 5 V of potential from electric generator. We hope to get minimum of 100 mA of current from generator. If we wouldn’t be able to achieve expected results, we may increase the size of blades or rating of generator.

11. Advantages of Windmill Wind Energy (fuel for windmill generator) is renewable, so it will never run out. Windmill doesn’t produce any poisonous gases, smoke, fumes, etc. as it doesn’t involve any burning process. So, it’s clean. It’s a very cheap way to generate electricity from. Windmills have very low maintenance costs as compared to those of other power generation plants.

12. Limitations of Windmills Windmills cause a lot of noise, so a windmill farm may become bothersome for people living nearby. Installation costs for windmills are very high, and its designing requires very high technical skill and knowledge. Since wind is unpredictable, so we may not get electricity all the time. Efficiencies for these wind turbines are very low.

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14. Thank You Hafiz Muhammad Ashraf … 08-ME-21 Sheikh Haris Zia … 08-ME-39 Ibrahim Azhar … 08-ME-53 Muhammad Haris … 08-ME-69 Ahmed Hilal Khan … 08-ME-125