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Promising Electric Aircraft Drive Systems - page 14 / 23

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Analytical Approach

  • Vehicle Power-systems are decomposed into energy storage and energy conversion subsystem components

    • Energy storage components

      • >

        Fuel: Hydrocarbons, H2, electrochemical…

        • >

          Containers: tanks, pressure vessels, batteries…

    • Energy conversions components

        • >

          Chemical to mechanical: Combustion Engines

        • >

          Chemical to electric: Fuel-cells, Batteries

        • >

          Electric to electric: Power Management

        • >

          Electric to mechanical: Electric Motors

  • Storage component weights scale to energy requirement

  • Conversion component weights scale to power requirement

  • Weight of Power-systems providing equivalent mechanical

energy (Power delivered over time) is the primary figure of merit

EAA Electric Aircraft World Symposium 2010: Michael Dudley

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