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Calc and First Page.pptx

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Calc and First Page.pptx

  1. 1. Project :- Design a 400c Racing Bike
  2. 2. Engine Calculation Length of piston = 6 cm Dia. of piston (bore dia.) = 8.9 cm Vs = Π/4 x D2 x l = Π/4 x 8.9 x 8.9 x 6 Vs = 373.197 cm2 Compression Ratio is taken as 11.3:1 r = Vs/Vc 11.3 = 373.197/Vc Vc = 33.026 Vs = Swept Volume Vc = Clearance Volume
  3. 3. Mechanical Efficiency ƞ = ƞ = Brake power/Indicated power = 25.74/35.46 = 0.7259 = 72.59%

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