# wind energy car

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• Wind Energy Car Submitted By:- VIBHUTI KUMAR B-Tech , VI Sem. Electrical Engineering (1109020105)

INTRODUCTION Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electrical power, windmills for mechanical power, wind pumps for water pumping or drainage, or sails to propel ships. Wind-powered mechanical vehicles primarily use wind turbines installed at a strategic point of the vehicle. The wind power, which is converted into mechanical energy through gears, belts or chains, causes the vehicle to propel forward. Wind-powered mechanical vehicles In this problem we are supposed to construct a car, which can be able to drive straight into the wind. The car has to be propelled just by wind energy, which means that we can not use others energy sources to move the car. Objective : The principle of the electric car is to transform the kinetic energy into electric energy (using a dynamo moved by a weather vane). Then, it would transform, with an electric engine, this electric energy into mechanical energy that would make the car walk. Principle Design : drawing of the prototype (graphic project) Frontal Area: It is important to have the smallest frontal area (not considering the weather vane area). Air resistance force depends on the frontal area of the car. Smaller frontal area have smaller resistance (wind buoyancy), which is capable to reduces the car final speed and, consequently, the car efficiency. Contd The weather vane size: The total torque on the weather vane determines the driving speed of the car. A bigger vane will have a larger torque on it, and, consequently, the car will drive faster into the wind. However, a larger weather vane has more contact surface area, thus it will have more resistance force, which tends to push back the car. So, we need to find a optimum size that delivers a maximum torque and a minimum resistance force. Contd Wheels: There are four wheels in our car: Two are moved, indirectly, by the wind (motored wheels) and two wheels (not motored) have the function of equilibrating the car (this wheels are located at the back of the car). Below we show a drawing of the wheels arrangement. Contd Wind Source: In our experiment, we will use a fan as the wind source. Our fan has three different powers: it means that there are three possibilities of wind power (three different wind escape intensities). For a more complete resolution, we will utilize all powers to calculate the efficiency. Contd Wind direction: The efficiency depends on the direction that the wind blows at the car frontal area. For a better performance, we used a step to put the fan, so we had a better wind utilization (picture) Contd Efficiency: Classically, in general problems, we calculate efficiency as the ratio between the effective energy used to our purpose and the total energy available. Ratio equal to 1, means the system has a 100% performance. On land. Ventomibile. Spirit Of Amsterdam. Mercedes-Benz Formula Zero Green bird. Black bird. Some Used Wind-powered vehicles mechanisms : On land : Terrestrialwind-poweredmechanicals includesVentomobile,andSpiritof Amsterdam.TheMercedes-BenzFormula Zerousessolarcells,batteries,andasail. TheGreenbird,whichcurrentlyholdsaworld recordforfastestwindpoweredvehicle,is sailpowered. Ventomobile TheVentomobileisasolelywind poweredlightweightthree- wheelerdesignedbyUniversityof Stuttgartstudents.Itwonthefirst prizeattheRacingAeolusheld atDenHelder,Netherlands,in August2008.AttheAeolusrace, severaluniversitiesfromalloverthe worldparticipateinracetobuildthe bestandfastestwindpowered vehicle Spirit of Amsterdam TheWind-poweredvehicle"Spiritof Amsterdam1"and"SpiritofAmsterdam2" is,justliketheVentomobile,aWPVbuild bytheHogeschoolvanAmsterdam (UniversityofAppliedScienceAmsterdam). In2009&2010theSpiritofAmsterdam1 and2wonfirstprizeattheRacing AeolusheldinDenmark Mercedes-Benz Formula Zero Unliketraditionalracing,whichfocuses merelyontheorderoffinish,Mercedes'new conceptintroducesenergyefficiencyasan integralpartofthecompetition.TheFormula ZeroRacerisloadedwithtechnology designedtoextractthemaximumthrustfrom theelectrichubmotors,aero-efficientsolar skinandhigh-techrigidsail. Green bird Ecotricity'sGreenbirdvehicle,designedand pilotedbyRichardJenkins,brokethelandspeed worldrecordforawind-poweredvehiclein 2009.Greenbirdrecordedatopspeedof 126.4mph(203.4km/h),andsustainedaspeed of126.2mph(203.1km/h)fortherequiredtime ofthreeseconds,beatingtheprevious, Americanheld,recordof116mph(186.7km/h), setbyBobSchumacherintheIronDuckin March1999atthesamelocation. Blackbird TheBlackbirdisanexperimentallandyacht, builttodemonstratethatitispossibletosail directlydownwindfasterthanthewind (DDWFTTW). Advantage Generateenergyfromwindturbinesanddrive anelectriccar. Thewindisfreeandwithmoderntechnology itcanbecapturedefficiently. Oncethewindturbineisbuilttheenergyit producesdoesnotcausegreenhousegases orotherpollutants. Windturbineshavearoletoplayinboththe developedandthirdworld. Disadvantage Thestrengthofthewindisnotconstantandit variesfromzerotostormforce.Thismeans thatwindturbinesdonotproducethesame amountofelectricityallthetime.Therewillbe timeswhentheyproducenoelectricityatall. Windturbinesarenoisy.Eachonecan generatethesamelevelofnoiseasafamily cartravellingat70mph.