my pg project presentation
TRANSCRIPT
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DESIGN AND DEVELOPMENT OF A
VERTICAL AXIS WIND TURBINE FOR URBAN SITE
Name: SAKTHINIVASHAN.S
Branch: ME (Energy Engineering) PT
Name of Guide : Dr. VENKATARAMANAN
Designation: Assistant Professor (Senior),
Mechanical Engineering Dept,
CEG, Anna university, Chennai-25.
Designation : Engineer, LAC
Company Name: VESTAS WIND TECHNOLOGY R&D, Chennai Pvt
Ltd.,
Company Web Address: http://www.vestas.com1
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AIM To Design a Vertical axis Wind Turbine for urban site
Designed turbine should be capable of
1) operating at low wind velocity
2) Withstanding high turbulence
3) Minimizing the material and
fabrication cost
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METHODOLOGY
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METHODOLOGY
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Right now
the work is in
this stage
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PROJECT APPROACH
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Right now
This stage has
been completed
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WHY AXIAL FLUX GENERATOR?
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• Design of proposed wind turbine using Pro-E
• Design calculations are formulated for the turbine
development
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WORK DONE- (ALL ARE FROM THE SCRAP)
7Unexpected output Power
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DEVELOPMENT OF AXIAL FLUX ALTERNATOR
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Initial generator winding designed in Pro-
E Model
Redesigned generator winding, with
ellipse shape
• Above design does not utilize maximum
magnetic flux.
• Passing over the curved surface reduces the
induced current in the coil
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DEVELOPMENT OF AXIAL FLUX ALTERNATOR
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Redesigned stator pattern
Initial stator pattern
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SIMPLE TEST
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Voltage in a single coil
Two coils connected in series and tested18 coils connected in series
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DEVELOPMENT OF AXIAL FLUX ALTERNATOR
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REDESIGNED STATOR
ROTOR WITH MAGNETS
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BLADE DEVELOPMENT ( LIFT+DRAG DESIGN )
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Template used as the profile of the bade
Dimensions in cm, scaled 1:2
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COMPLETED TURBINE
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WORKS AHEAD
Power Performance evaluation
Optimization techniques
Cost of energy produced
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POWER PERFORMANCE ANALYSIS
1) Measure o/p parameters from
prototype.
2) Obtain ideal performance machine o/p
parameters.
3) η of the prototype developed(by
comparing both).
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STEPS TO BE CARRIED OUT
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OBTAIN IDEAL PERFORMANCE MACHINE’S O/P PARAMETERS
Prepared an excel sheet to get it done
Sorted out the simple practically used
formulas in wind industry.
Arrived power curve by having very min input
datas.
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EXCEL SHEET FOR POWER ANALYSIS IN IDEAL MACHINE
IO (INPUT/OUTPUT)
GERERATOR
TURBINE
POWER CURVES
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PHASES
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IO (INPUT/OUTPUT)
Input parameters required,
Turbine Specs
TSR peak
TSR max
Peak efficiency
Height
Diameter
Area
RPM Step
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GERERATOR
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Coil voltage (V) = k / Speed in RPM
K= voltage drawn/ RPM
Current (I) = (V - Battery volt - Diode drop volt) / Resistance
I = V/R
Consumed Power by Battery= V*I
P= V*I
Delivered Power by Battery= Battery volt * I
η = DP / CP
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TURBINE
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A2=(TSR Peak / Peak η).
A1= 2 * A2
A0= 0
Peak η= Cp
IF TSR ≤ TSR Peak,
A2 * TSR(TSR+A1)(TSR+A2)(TSR+A0)
IF TSR < TSR Max,
A2 * TSR(TSR+A1)(TSR+A2)(TSR+A0)
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POWER CURVE FOR IDEAL MACHINE
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Turbine Specs 1st Part 2nd Part
TSR peak 0.6 a2 -69.4444 a2 -69.4444
TSR max 1.2 a1 83.33333 a1 83.33333
Height 0.426509 m a0 0 a0 0
Diameter 0.3048 m
Area 0.13 m^2
Air Dens 1.22 kg/m^3
Wind Speed: 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 m/s
2.2 4.5 6.7 8.9 11.2 13.4 15.7 17.9 20.1 22.4 24.6 mph
Power Available: 0.1 0.6 2.1 5.1 9.9 17.1 27.2 40.6 57.8 79.3 105.5 Watts
RPM Step 6
Speed Tip Speed Power Curves TSR's:
RPM m/s Watts
0 0.00 0 0 0 0 0 0 0 0 0 0 0 0.00 0.00 0.00 0.00
6 0.10 0.005823 0.024302 0.055436 0.099226 0.155672 0.224773 0.30653 0.400943 0.508012 0.627736 0.760117 0.10 0.05 0.03 0.02
12 0.19 0.010636 0.046583 0.107842 0.194412 0.306294 0.443487 0.605992 0.793808 1.006935 1.245374 1.509124 0.19 0.10 0.06 0.05
18 0.29 0.014439 0.066845 0.157219 0.285559 0.451867 0.656142 0.898384 1.178593 1.496769 1.852913 2.247024 0.29 0.14 0.10 0.07
24 0.38 0.017232 0.085088 0.203566 0.372667 0.592391 0.862737 1.183707 1.555299 1.977515 2.450353 2.973814 0.38 0.19 0.13 0.10
30 0.48 0.019016 0.10131 0.246883 0.455735 0.727865 1.063273 1.461961 1.923927 2.449171 3.037694 3.689496 0.48 0.24 0.16 0.12
36 0.57 0.019789 0.115513 0.287171 0.534763 0.858289 1.25775 1.733145 2.284475 2.911739 3.614937 4.394069 0.57 0.29 0.19 0.14
42 0.67 0.019553 0.127696 0.324429 0.609752 0.983665 1.446168 1.997261 2.636944 3.365217 4.18208 5.087533 0.67 0.34 0.22 0.17
48 0.77 0.018307 0.137859 0.358657 0.680701 1.103991 1.628526 2.254307 2.981334 3.809607 4.739125 5.769889 0.77 0.38 0.26 0.19
54 0.86 0.016051 0.146003 0.389856 0.747611 1.219267 1.804825 2.504284 3.317645 4.244907 5.286071 6.441136 0.86 0.43 0.29 0.22
60 0.96 0.012785 0.152126 0.418025 0.810481 1.329494 1.975065 2.747192 3.645877 4.671119 5.822918 7.101274 0.96 0.48 0.32 0.24
66 1.05 0.008509 0.15623 0.443165 0.869312 1.434672 2.139245 2.983031 3.96603 5.088242 6.349666 7.750304 1.05 0.53 0.35 0.26
72 1.15 0.003223 0.158314 0.465274 0.924103 1.5348 2.297366 3.211801 4.278104 5.496276 6.866316 8.388225 1.15 0.57 0.38 0.29
78 1.24 0 0.158379 0.484355 0.974855 1.629879 2.449428 3.433501 4.582099 5.89522 7.372867 9.015037 1.24 0.62 0.41 0.31
84 1.34 0 0.156423 0.500405 1.021567 1.719909 2.595431 3.648132 4.878014 6.285076 7.869319 9.630741 1.34 0.67 0.45 0.34
90 1.44 0 0.152448 0.513426 1.064239 1.804889 2.735374 3.855695 5.165851 6.665843 8.355672 10.23534 1.44 0.72 0.48 0.36
96 1.53 0 0.146453 0.523417 1.102873 1.884819 2.869258 4.056188 5.445609 7.037522 8.831926 10.82882 1.53 0.77 0.51 0.38
102 1.63 0 0.138439 0.530379 1.137466 1.959701 2.997082 4.249611 5.717287 7.400111 9.298081 11.4112 1.63 0.81 0.54 0.41
108 1.72 0 0.128404 0.534311 1.16802 2.029533 3.118848 4.435966 5.980887 7.753611 9.754138 11.98247 1.72 0.86 0.57 0.43
114 1.82 0 0.11635 0.535213 1.194535 2.094315 3.234554 4.615251 6.236408 8.098022 10.2001 12.54263 1.82 0.91 0.61 0.45
120 1.92 0 0.102276 0.533086 1.21701 2.154048 3.344201 4.787468 6.483849 8.433345 10.63595 13.09168 1.92 0.96 0.64 0.48
126 2.01 0 0.086182 0.527929 1.235445 2.208732 3.447788 4.952615 6.723211 8.759578 11.06171 13.62962 2.01 1.01 0.67 0.50
132 2.11 0 0.068069 0.519742 1.249841 2.258366 3.545316 5.110693 6.954495 9.076723 11.47738 14.15646 2.11 1.05 0.70 0.53
138 2.20 0 0.047936 0.508526 1.260198 2.302951 3.636785 5.261701 7.177699 9.384778 11.88294 14.67218 2.20 1.10 0.73 0.55
144 2.30 0 0.025783 0.49428 1.266514 2.342486 3.722195 5.405641 7.392824 9.683745 12.2784 15.1768 2.30 1.15 0.77 0.57
150 2.39 0 0.00161 0.477004 1.268792 2.376972 3.801545 5.542511 7.599871 9.973623 12.66377 15.67031 2.39 1.20 0.80 0.60
156 2.49 0 0 0.456699 1.26703 2.406409 3.874836 5.672313 7.798838 10.25441 13.03903 16.1527 2.49 1.24 0.83 0.62
162 2.59 0 0 0.433364 1.261228 2.430796 3.942068 5.795045 7.989726 10.52611 13.4042 16.624 2.59 1.29 0.86 0.65
168 2.68 0 0 0.407 1.251387 2.450134 4.003241 5.910708 8.172535 10.78872 13.75927 17.08418 2.68 1.34 0.89 0.67
174 2.78 0 0 0.377606 1.237506 2.464422 4.058354 6.019301 8.347265 11.04224 14.10424 17.53325 2.78 1.39 0.93 0.69
180 2.87 0 0 0.345182 1.219586 2.473661 4.107408 6.120826 8.513916 11.28668 14.43911 17.97121 2.87 1.44 0.96 0.72
186 2.97 0 0 0.309729 1.197626 2.477851 4.150402 6.215281 8.672488 11.52202 14.76388 18.39807 2.97 1.48 0.99 0.74
192 3.06 0 0 0.271246 1.171627 2.476991 4.187338 6.302668 8.822981 11.74828 15.07856 18.81382 3.06 1.53 1.02 0.77
198 3.16 0 0 0.229733 1.141588 2.471081 4.218214 6.382985 8.965394 11.96544 15.38313 19.21846 3.16 1.58 1.05 0.79
204 3.26 0 0 0.18519 1.107509 2.460123 4.243031 6.456233 9.099729 12.17352 15.67761 19.61199 3.26 1.63 1.09 0.81
210 3.35 0 0 0.137618 1.069392 2.444115 4.261788 6.522411 9.225985 12.37251 15.96198 19.99441 3.35 1.68 1.12 0.84
216 3.45 0 0 0.087017 1.027234 2.423057 4.274486 6.581521 9.344162 12.56241 16.23626 20.36572 3.45 1.72 1.15 0.86
222 3.54 0 0 0.033386 0.981037 2.39695 4.281125 6.633561 9.454259 12.74322 16.50044 20.72592 3.54 1.77 1.18 0.89
228 3.64 0 0 0 0.930801 2.365794 4.281705 6.678533 9.556278 12.91494 16.75452 21.07502 3.64 1.82 1.21 0.91
234 3.73 0 0 0 0.876525 2.329588 4.276225 6.716435 9.650217 13.07757 16.9985 21.413 3.73 1.87 1.24 0.93
240 3.83 0 0 0 0.818209 2.288333 4.264686 6.747267 9.736078 13.23112 17.23238 21.73988 3.83 1.92 1.28 0.96
246 3.93 0 0 0 0.755854 2.242029 4.247088 6.771031 9.813859 13.37557 17.45617 22.05565 3.93 1.96 1.31 0.98
252 4.02 0 0 0 0.68946 2.190675 4.22343 6.787726 9.883561 13.51094 17.66985 22.36031 4.02 2.01 1.34 1.01
258 4.12 0 0 0 0.619026 2.134272 4.193713 6.797351 9.945185 13.63721 17.87344 22.65386 4.12 2.06 1.37 1.03
264 4.21 0 0 0 0.544552 2.072819 4.157937 6.799907 9.998729 13.7544 18.06693 22.9363 4.21 2.11 1.40 1.05
270 4.31 0 0 0 0.466039 2.006317 4.116102 6.795394 10.04419 13.8625 18.25032 23.20764 4.31 2.15 1.44 1.08
276 4.40 0 0 0 0.383486 1.934765 4.068207 6.783812 10.08158 13.96151 18.42361 23.46786 4.40 2.20 1.47 1.10
282 4.50 0 0 0 0.296894 1.858164 4.014253 6.765161 10.11089 14.05143 18.5868 23.71698 4.50 2.25 1.50 1.13
0
5
10
15
20
25
30
0 100 200 300 400
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CHENNAI WIND CONDITION
TIME m/s
10 :00 AM 2.3
11:00 AM 4.9
12:00 PM 5.3
1 :00 PM 6.8
2:00 PM 1.3
3:00 PM 1.2
4 :00 PM 1.7
5:00 PM 2.8
6:00 PM 4.7
7:00 PM 5.9
8:00 PM 7.2
9:00 PM 6.7
10:00 PM 5.8
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O/P OF IDEAL MACHINE
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Pow
er
(Watts)
Speed RPM
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O/P OF THE PROTOTYPE
SPEED COIL VOLTAGE
15 0.53
27 0.97
48 1.02
86 3.05
107 4.58
119 9.16
123 11.53
139 13.74
167 15.21
197 16.34
203 18.02
230 21.45
248 24.78
267 25.67
25
Volts (
V)
Speed RPM
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PUBLICATIONSWon 2nd Best paper award in the
national level conference on resent
trends in Mechanical Engineering
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REFERENCES
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WIND ENERGY HANDBOOK by Tony Burton,Wind Energy Consultant,
Carno, UK,David Sharpe CREST, Loughborough University, UK,
Nick Jenkins,UMIST, Manchester, UK,Ervin Bossanyi ,Garrad Hassan &
Partners, Bristol, UK.
Wind Energy Explained Theory, Design and ApplicationJ.F. Manwell, J,G.
McGowan and A,L. RogersUniversity of Massachusetts, Amherst, USA.
Informative websites;
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THANK YOU
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