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

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

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

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.

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) PRELIMINARY DESIGN

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

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

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

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

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

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 BLADE PROTO TYPE

COMPARATIVE GRAPHS 3 BLADED PROTOTYPE 6 BLADED PROTOTYPE

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 ( kg/m 3 ) u = wind speed (15 m/s) Power delivered by 6 Bladed rotor : watt Power delivered by 3 Bladed rotor : watt

Fig. RAT in Aircraft

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

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

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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