1. By, VISHWA CHANDRAN. N. M VIVEKANANDHAN. S MANO PRAKASH. R NITIN. M. CHERIAN B.E.AERONAUTICAL ENGINEERING HINDUSTAN COLLEGE OF ENGINEERING, PADUR. (Project Code : EME – 06) Team : AIR ENGINEERS

2. Clean fuel No pollution Renewable resource Sustainable & Reliable method of energy production Economical power resource Energy for the future

3. RELATIVE STATIC WIND TURBINE Turbine static Wind moving Kinetic energy of wind Mechanical energy by turbine Electrical Energy by Generator. DYNAMIC WIND TURBINE (Mounted on the Vehicle) Moving Turbine Wind is static ENERGY CONVERSION

4. STATIC WIND TURBINESDYNAMIC WIND TURBINES It is stationary and fixed in place.It is mobile. Wind turbines are huge and costly. It is very small in size and cost effective. Installation is difficult and it requires a huge space. Installation is easy and requires less space. Can be installed only in high wind areas. Can be installed in all vehicles.

5. DESIGN OBJECTIVES Minimize drag Maximize power. Harness energy from the wind. To develop a powerful, cheap, light, low drag, simple, dynamically stable and durable prototype ram air turbine. PrototypeNo. of bladesRotor diameter (cm) Swept area (cm 2 ) Blade Length (cm) 1325490.8711.6 2626530.9310.5 PRELIMINARY DESIGN

6. Fig. 6 Bladed Rotor Fig. 3 Bladed Prototype Fig.3 Bladed Rotor Fig. 6 Bladed Prototype

7. 6 Blade Rotor Supporting stand Clamp Generator Bolt Nut Coupling RAT Prototype RAT Exploded View

8. Fig. Stress Fig. Mesh Fig. Strain Fig. Displacement

9. Fig. 3 Blade rotor inside Test Section Fig. Low speed Sub-sonic Wind Tunnel Fig. Digital Drag force Indicator Fig. 6 Blade rotor inside Test Section

10. Fig. Hand-held Non contact Tachometer Fig. Inclined Manometer Fig. Multimeter

11. WIND TUNNEL RESULTS PROTO- TYPE FREE STREAM VELOCITY (m/s) FREE STREAM VELOCITY (kmph) ROTATIONAL SPEED (rpm) DRAG (N) COEFFICIENT OF DRAG VOLT (V) CURRENT (Ampere) POWER (watt) 3 BLADE PROTO TYPE 51841950.3924 0.52 9.580.050.479 725.254170.5886 0.4 12.20.091.098 932.469961.0791 0.44 160.182.88 1139.682141.4715 0.40 18.60.254.65 1346.897212.0601 0.41 22.20.357.77 1554109042.5506 0.38 240.4210.08 6 BLADE PROTO TYPE 51815290.5886 0.72 70.493.43 725.219910.7848 0.49 9.150.87.32 932.425621.3734 0.52 11.81.2514.75 1139.630181.962 0.5 13.81.6222.356 1346.835362.4525 0.45 16.052.0232.421 155439973.0411 0.41 20.42.4249.368

12. COMPARATIVE GRAPHS 3 BLADED PROTOTYPE 6 BLADED PROTOTYPE

13. Power delivered = Cp x swept area of wind turbine x 1 / 2 d x u 3 Cp = the power efficiency of the rotor (0.59) swept area of a turbine = πr 2 (r = radius of swept area, i.e. blade length) d = density of air (1.2256 kg/m 3 ) u = wind speed (15 m/s) Power delivered by 6 Bladed rotor : 64.78 watt Power delivered by 3 Bladed rotor : 59.89 watt

14. Fig. RAT in Aircraft

15. Fig. Frontal PressureFig. Flow Detachment Fig. Pressure Distribution Fig. Velocity Distribution

16. Fig. Shape of duct with RAT Fig. RAT Placement in front grill

17. Integration of Ram Air Turbine in the vehicle. Storage problem in batteries.  This energy production produces no pollution and it is clean free energy and it is a great social relevance at present times with the world going green.  It is very cheap to harness this energy.  Energy production is continuous and reliable.  Unlimited free wind energy is available around us.

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