vertical axis wind turbine

vertical axis wind turbine

1. Presentation on
Generation of DC by using VAWT
(Vertical Axis Wind Turbine)
•preparedby:
-Viral S Desai
-Jaimin R Shah
-Parth S Patel
-Darshil G Patel
-InternalGuide:Mr.KaushtubhVyas
-ExternalGuide:Mr.PavanPatel
-Company: OhmGroups
•Guided by :

2. Presentation Outline
1.Introduction
2.Abstract
3.Wind Turbine
4.VAWT
5.Block Diagram
6.Project Component
7.Measurement of wind speed & velocity
8.Advantage
9.Disadvantage
10.Application
11.Conclusion
12.Future aspects

3. Introduction
•Windpowerturbinescomeinhandyinthemarket
today.Vertical-axiswindturbinehappenstobe
oneofthemostpopularandwidelycovetedwind
turbines.
•Itisalsomorepractical,reliableandcosteffective
hasthebestlongevityanddurabilityfeatures.
Therefore,youwillbeabletouseitefficientlyover
alonghaul.
•Theturbineisalsodesignedinauniquewaythat
enablesittoworkefficientlyinanurbanand
suburbanarea.

4. Abstract
•TogeneratetheelectricitywiththehelpofVAWT
(Verticalaxiswindturbine).TheVAWTisusefor
generatethe10wattD.C.power&LEDisturnon.
•AVAWTdoesnotneedtobeorientedintothewind
athepowertransitionmechanismscanbemounted
atgroundlevelforeasyaccess.
•Forgeneratingthepoweritisdependonthevelocity
ofthewindButweassuredthatVAWTisgenerate
thefixedD.C.outputwhichisdependonthe
velocityofthewind.

5. Wind Energy
•Thekineticenergyofthewindcanbechanged
intootherformsofenergy,eithermechanical
energyorelectricalenergy.
•Thekineticenergycontainedinwindcanbe
transferredtootherobjects,suchasboatsails,or
transformedintoelectricalenergythroughwind
turbinegenerators.
•Withtherecentsurgeinfossilfuelsprices,demands
forcleanerenergysources,andgovernment
fundingincentives,windturbinesarebecominga
moreviabletechnologyforelectricalpower
generation.

6. Wind Turbines

7. How Wind Turbines Work?
•Allwindturbinesessentiallyworkthesamewaywith
minormodificationsdepending onsizeand
configuration.
•Thewindturnsthebladestospinashaftwhich
connectstoageneratorwhichproduces
electricity.
•Essentiallytherotorsharnessthekineticenergyof
thewindandcovertsitintoelectricalenergy.

8. Types of Axis
-Higherwindspeeds
-mediumefficiency
-hastobemovedintothe
directionofthewind
-veryhighpower
-Efficiency–18%to20%
•Horizontal Turbine :

9. Types of Axis
-Canplacegeneratoronground
-Winddirectiondoesn'tmatter,
itadjuststoititsself.
-mediumpower
-Efficiency–50%to60%
•Vertical Turbine :

10. why we chose a vertical axis turbine
instead of a horizontal axis?
•Worksatalowerwindspeeds.
•Winddirectiondoesn'tmatter.
•Differentthanourclassmates.

11. Vertical Axis Wind Turbine
•Wemakea“GiroMill”typeVAWT.
•Theturbinestartsrotatingat4m/sspeed.
•VAWTsarerugged,quiet,Omni-directional.
•VAWTdoesn'tcreateasmuchstressonthe
supportstructure.
•Itcanbeinstalledonchimneysandsimilar
tallstructures.
•Popularizingthewindenergyfordomestic
application.
•Thegeneratorismountedon
ashorttower.
•Thebladespointupward.

12. Block Diagram

13. PERMANENT MAGNET BRUSHLESS GENERATOR
Permanent magnet
generatorissameasthatof
shuntmotor withthe
differencethatthereis
permanentmagnetinsteadof
stationaryfieldwindingfor
producingtherequired
magneticflux.
SincethisisBrushlessand
Commutator isabsentit
requirespracticallyno
maintenance.
TheLifeofthistypeofmotoris
longercomparedtoothers.
Project Components :

14. BLADE
Bladedesignismadeof
aluminumandepoxy
resin.
Abovematerialareused
forourblades.
AeroDynamicblade
madeofcarbonfiberis
lightweight.Hasarazor
sharpedgewhichcut
throughthewindand
makesitvirtuallysilent.
Project Components :

15. Measurement of Wind Speed Velocity
•Inpriorstageofthewind
turbineprojecthasbasic
requirement isto
measurethewindspeed
andthevelocity.
•TestoistheGerman
equipmenttomeasure
thewindandallother
parametersisuseforany
ofourwindprojectfor
assurance ofwind
speed.

16. Advantages
•Acceptswindfromanyangle.
•Betteranswertorapidlychangingwinds.
•Componentscanbemountedatgroundlevel
-Easeofservice
-Lighterweighttowers
•Virtuallysilentoperation.
•HighMechanicalstability.

17. Disadvantages
•Rotorsaregenerallyneargroundwherewindis
poorer
•Poorself-startingcapabilities
•Requiressupportattopofturbinerotorsturdy
construction
•Requiressupportattopofturbinerotor
•Overallpoorperformanceandreliability(althoughit
isarguedthatitismainlyduetolackofresearchand
developmentandnotaerodynamics)

18. Application

19. Conclusion
•wedoneourliteraturesurveyandmarketsurveyonVAWT.
And it has try to mentioned
advantages,applications,limitations.
•Andalsoitisunderstoodthatinthefuturemostofour
energysourcewillbasedonwindenergy.
•WejustifythathowtoVAWTworksandproduceselectricity
throughblockdiagram.
•Also,weunderstoodhowtodesignbladeand
measurementofwindspeedwithuseofanemometer.
•Ithadmadeaprototypemodelwithusingaacrylic
materialandtrytomentionedaitlookslikeaoriginal
model.

20. Future Aspects
•InpastdaysVAWThadtobestartbygiving
excitation.
•Ourprojectaspectistomakeselfstartingwind
turbine.
•Andsecondoneistoreducethepowerfluctuation
duetotheunevenwind.so,thatwegetconstant
powersupply.
•Forthat,Wewillputagear-boxbetweenturbine&
rotorshaft.

21. References
1.Non-Conventionalenergysourcesbysmt.C.K.Rai
2.Wikipedia Encyclopedia.Retrieved from
http://en.wikipedia.org/wiki/Image:H-Darrieus-
Rotor.png.jpgonNovember28,2005.
3.ReadsomePapersonVAWTthroughWikipedia
4.http://www.urbanwind.net/pdf/technological_anal
ysis.pdf
5.Wehavetousecatalogueofohmsgroups.

22. LAST TO SAY
CLEAN POWER
GREEN POWER
WIND POWER

23. Thank you...
Any que?