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Energy Transformations: Chemical to Electrical to Rotational to Wind

Explore the intricate process of energy transformations from chemical to electrical, rotational, and wind energy. Follow the journey of energy conversion through various stages with detailed calculations and efficiencies explained.

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Energy Transformations: Chemical to Electrical to Rotational to Wind

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  1. Energy Transformations Arbaaz Khan Quinn Calvert Rishi Savaliya RishantDwivedi

  2. Chemical → Electrical • Chemical= m x SE • m= Mass of Chemical (Kg) • SE= Specific Energy (MJ/Kg) • .045 x 500,000=22500J • 22500J = 22.5KJ • Electrical = IV/t • I= Current (Amps) • V= Voltage (Volts) • t= time (seconds) • (.0038 x 8.52)/.539=.06J Efficiency = .06/22500 = .00267%

  3. Electrical → Rotational • Electrical = .06J • Rotational = ½Iω2 = ½ .0000245(25) = .007656 J • I = Moment of Inertia (kg*m) • Moment of Inertia = mr2 = 0000245 (Kg*m) • m = mass (Kg) • r = radius (meters) • ω = Angular Velocity (revs/s) • Angular Velocity = θ/t = 25 (revs/s) • θ = angular displacement (rads/revs) • t = time (seconds) Efficiency = .00001964/.069 = .0285 %

  4. Transformation Video:Electrical → Rotational

  5. Rotational → Wind • Rotational Energy = .007656 Joules • Wind Energy == ½(1.172)(3.1293)3()(.035)2 = .69 J • = Air Density (kg*m3) = 1.172 kg*m3 • = Velocity (m/s) = 3.1293 m/s • = Radius (m) = .035m Efficiency = .069/.007656 = 11%

  6. Wind → Kinetic1 • m = mass • v = velocity Efficiency = .00001964/.069 = .0285 %

  7. Potential → Kinetic2 • m = mass • g = acceleration of gravity • h = height • m=mass • v=velocity=x/t • X=Distance • t=time Efficiency = .018/(.557+.00001964) = 3.23%

  8. Overall Efficiency • Efficiency = Wout/Win = .018/(22500+.557) = .00008% • Ein= 22500J • Eout= .018J

  9. References The Engineering Toolbox. (n.d.). Retrieved February 13, 2011, from Engineering Toolbox website: http://www.engineeringtoolbox.com/ Battery energy -- What battery provides more? (n.d.). Retrieved February 17, 2011, from AllAboutBatteries.com website: http://www.allaboutbatteries.com/Battery-Energy.html Lithium. (n.d.). Retrieved February 17, 2011, from Duracell website: http://www1.duracell.com/procell/chemistries/lithium.asp

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