Conceptual Design Methods Hybrid-Electric Transport Aircraft

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Conceptual Design Methods Hybrid-Electric Transport Aircraft ( conceptual-design-methods-hybrid-electric-transport-aircraft )

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54 Topology Parallel, Serial Partial parallel Topology Parallel Serial Partial parallel Topology Serial, Parallel, Partial parallel 3 Methods for Sizing and Performance of Hybrid-Electric Aircraft Equation (3.29) (3.30) (3.31) Equation (3.32) Equations for propulsive device sizing 𝑇𝑑𝑒𝑠,𝑃 𝐷 = 𝑇𝑑𝑒𝑠 𝑁𝑃𝐷 𝑇𝑑𝑒𝑠,𝑇 𝐹 = 𝑇𝑑𝑒𝑠 Β· (1 βˆ’ 𝐻𝑃 𝑒𝑠𝑒) 𝑁𝑇𝐹 𝑇𝑑𝑒𝑠,𝐸𝐹 = 𝑇𝑑𝑒𝑠 Β· 𝐻𝑃 𝑒𝑠𝑒 𝑁𝐸𝐹 Equations for electric motor sizing 𝑃𝐸𝑀,π‘šπ‘Žπ‘₯ = 𝐻𝑃 Β· 𝑃𝑆𝐿𝑆 𝑃𝐸𝑀,π‘šπ‘Žπ‘₯=max(π‘‡π‘ƒπ·Β·π‘€Β·π‘Ž) (3.33) πœ‚π‘ƒπ· 𝑃𝐸𝑀,π‘šπ‘Žπ‘₯ = 𝐻𝑃𝑒𝑠𝑒 Β· 𝑇𝑑𝑒𝑠 Β· 𝑀 Β· π‘Ž πœ‚π‘ƒπ· ·𝑁𝐸𝐹 Equation for PMAD sizing 𝑃𝑃𝑀𝐴𝐷 = 𝑃𝐸𝑀,π‘šπ‘Žπ‘₯ πœ‚πΈπ‘€ Equations for batteries sizing π‘šπ΅π‘Žπ‘‘π‘‘π‘’π‘Ÿπ‘¦ = max(π‘šπ΅π‘Žπ‘‘π‘‘π‘’π‘Ÿπ‘¦ π‘’π‘›π‘’π‘Ÿπ‘”π‘¦; π‘šπ΅π‘Žπ‘‘π‘‘π‘’π‘Ÿπ‘¦ π‘π‘œπ‘€π‘’π‘Ÿ) π‘šπ΅π‘Žπ‘‘π‘‘π‘’π‘Ÿπ‘¦ π‘’π‘›π‘’π‘Ÿπ‘”π‘¦ = 1 (3.31) and (3.34) Equation (3.35) Equation (3.3) (3.4) (3.5) Equation (3.7) ∫︁ 𝑑𝑒𝑛𝑑 πœ‚ ·𝑒 Β·(1βˆ’π‘†π‘‚πΆ ) 𝑃𝐸𝑙𝑒𝑐(𝑑)·𝑑𝑑 π΅π‘Žπ‘‘ π΅π‘Žπ‘‘,𝑆𝑦𝑠𝑑 π‘™π‘–π‘šπ‘–π‘‘ π‘‘π‘–π‘›π‘–π‘‘π‘–π‘Žπ‘™ π‘šπ΅π‘Žπ‘‘π‘‘π‘’π‘Ÿπ‘¦ π‘π‘œπ‘€π‘’π‘Ÿ = max(𝑃𝐸𝑙𝑒𝑐) πœ‚π΅π‘Žπ‘‘ Β· π‘π΅π‘Žπ‘‘,𝑆𝑦𝑠𝑑 Equation for fuel-cells sizing 𝑃𝐹𝐢,π‘šπ‘Žπ‘₯ = max(𝑃𝐸𝑙𝑒𝑐) πœ‚πΉπΆ Table 3.3: Summary of sizing principles for hybrid-electric propulsion system

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