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Energy Transformations Arbaaz Khan Quinn Calvert Rishi Savaliya Rishant Dwivedi

Energy Transformations

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Energy Transformations. Arbaaz Khan Quinn Calvert Rishi Savaliya Rishant Dwivedi. 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) - PowerPoint PPT Presentation

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Transformation Video: Electrical Rotational

Energy Transformations Arbaaz KhanQuinn Calvert Rishi SavaliyaRishant Dwivedi Chemical Electrical Chemical= m x SEm= Mass of Chemical (Kg)SE= Specific Energy (MJ/Kg).045 x 500,000=22500J22500J = 22.5KJElectrical = IV/tI= Current (Amps)V= Voltage (Volts) t= time (seconds)(.0038 x 8.52)/.539=.06JEfficiency = .06/22500 = .00267%

Electrical RotationalElectrical = .06JRotational = I2 = .0000245(25) = .007656 JI = Moment of Inertia (kg*m)Moment of Inertia = mr2 = 0000245 (Kg*m) m = mass (Kg)r = radius (meters) = Angular Velocity (revs/s)Angular Velocity = /t = 25 (revs/s) = angular displacement (rads/revs)t = time (seconds)Efficiency = .00001964/.069 = .0285 %

Transformation Video:Electrical Rotational

Rotational WindRotational Energy = .007656 JoulesEfficiency = .069/.007656 = 11%

Wind Kinetic1Efficiency = .00001964/.069 = .0285 %

Potential Kinetic2Efficiency = .018/(.557+.00001964) = 3.23%

Overall EfficiencyEfficiency = Wout/Win = .018/(22500+.557) = .00008%Ein = 22500JEout = .018J

ReferencesThe 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.htmlLithium. (n.d.). Retrieved February 17, 2011, from Duracell website: http://www1.duracell.com/procell/chemistries/lithium.asp