by, vishwa chandran. n. m vivekanandhan. s mano prakash. r nitin. m. cherian b.e.aeronautical...
TRANSCRIPT
TAMILNADU STATE COUNCIL FOR SCIENCE & TECHNOLOGY(STUDENT PROJECT SCHEME 2009-2010)
By, VISHWA CHANDRAN. N. M
VIVEKANANDHAN. S MANO PRAKASH. R NITIN. M. CHERIAN
B.E.AERONAUTICAL ENGINEERINGHINDUSTAN COLLEGE OF ENGINEERING, PADUR.
(Project Code : EME – 06)
Team : AIR ENGINEERS
GENERATION OF POWER USING WIND VELOCITY FROM MOTION OF VEHICLES
• Clean fuel• No pollution• Renewable resource• Sustainable & Reliable method of energy production• Economical power resource• Energy for the future
SIGNIFICANCE OF WIND ENERGY
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
CONCEPT
ENERGY CONVERSION
STATIC WIND TURBINES DYNAMIC 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.
COMPARISON OF STATIC & DYNAMIC WIND ENERGY CAPTURE
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.
Prototype No. of blades Rotor diameter (cm)
Swept area (cm2)
Blade Length (cm)
1 3 25 490.87 11.6
2 6 26 530.93 10.5
PRELIMINARY DESIGN
DESIGN OF RAT(RAM AIR TURBINE)
Fig . 6 Bladed Rotor
Fig . 3 Bladed PrototypeFig .3 Bladed Rotor
Fig . 6 Bladed Prototype
PROTOTYPE
RAM AIR TURBINE(CAD MODEL)
6 Blade Rotor Supporting stand
Clamp
Generator
Bolt
Nut
Coupling
RAT Prototype
RAT Exploded View
STRUCTURAL
Fig. Stress
Fig. MeshFig. Strain
Fig. Displacement
ANALYSIS
Fig. 3 Blade rotor inside Test Section
Fig . Low speed Sub-sonic Wind TunnelFig. Digital Drag force Indicator
Fig. 6 Blade rotor inside Test Section
WI ND
TUNNE L
TE
ST I NG
Fig . Hand-held Non contact Tachometer
Fig . Inclined Manometer
Fig . Multimeter
MEASURING INSTRUMENTS
WIND TUNNEL RESULTSPROTO-
TYPEFREE
STREAM VELOCITY
(m/s)
FREESTREAM
VELOCITY(kmph)
ROTATIONAL SPEED(rpm)
DRAG(N)
COEFFICIENT OF DRAG
VOLT(V)
CURRENT(Ampere)
POWER(watt)
3 BLADE
PROTO
TYPE
5 18 4195 0.3924 0.52 9.58 0.05 0.479
7 25.2 5417 0.5886 0.4 12.2 0.09 1.098
9 32.4 6996 1.0791 0.44 16 0.18 2.88
11 39.6 8214 1.4715 0.40 18.6 0.25 4.65
13 46.8 9721 2.0601 0.41 22.2 0.35 7.77
15 54 10904 2.5506 0.38 24 0.42 10.08
6
BLADE
PROTO
TYPE
5 18 1529 0.5886 0.72 7 0.49 3.43
7 25.2 1991 0.7848 0.49 9.15 0.8 7.32
9 32.4 2562 1.3734 0.52 11.8 1.25 14.75
11 39.6 3018 1.962 0.5 13.8 1.62 22.356
13 46.8 3536 2.4525 0.45 16.05 2.02 32.421
15 54 3997 3.0411 0.41 20.4 2.42 49.368
COMPARATIVE GRAPHS
4 6 8 10 12 14 16 180
2
4
6
8
10
12
14
Power
Velocity (m/s)
Pow
er (w
att)
4 6 8 10 12 14 16 180
0.1
0.2
0.3
0.4
0.5
0.6Coefficient of Drag (Cd)
Velocity (m/s)
Coeffi
cien
t of
Dra
g (C
d)
4 6 8 10 12 14 160
10
20
30
40
50
60
Power
Velocity (m/s)
Pow
er (w
att)
4 6 8 10 12 14 160
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Coefficient of Drag (Cd)
Velocity (m/s)
Coeffi
cien
t of
Dra
g (C
d)
3 BLADED PROTOTYPE
6 BLADED PROTOTYPE
• Power delivered = Cp x swept area of wind turbine x 1/2 d x u3
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/m3)u = wind speed (15 m/s)
Power delivered by 6 Bladed rotor : 64.78 wattPower delivered by 3 Bladed rotor : 59.89 watt
THEORETICAL CALCULATION
Fig . RAT in Aircraft
APPLICATIONS
STUDY OF DRAG OVER A VEHICLE
Fig . Frontal Pressure Fig . Flow Detachment
Fig. Pressure Distribution Fig . Velocity Distribution
Fig. Shape of duct with RAT
Fig. RAT Placement in front grill
PROPOSED APPLICATION
• 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.
PROBLEMS TO OVERCOME
ADVANTAGES
THANK YOU
dc