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Principal layout of the prototype

Principal layout of the prototype. (USFD, INNAS). The electrical machine. (ABB). The combustion system. HCCI combustion Two-stroke Cyl. vol.: 2x1 litre Diesel fuel Simulation results: Power optimal : 23 kW Efficiency ind : ~51% Efficiency eff : ~46%. (IFP, INNAS, CTH). Cylinder.

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Principal layout of the prototype

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  1. Principal layout of the prototype (USFD, INNAS)

  2. The electrical machine (ABB)

  3. The combustion system HCCI combustion Two-stroke Cyl. vol.: 2x1 litre Diesel fuel Simulation results: Poweroptimal: 23 kW Efficiencyind: ~51% Efficiencyeff: ~46% (IFP, INNAS, CTH)

  4. Cylinder

  5. Cylinder head, complete

  6. Photograph of the prototype (INNAS)

  7. Prototype in the test cell at Chalmers

  8. Control layout • Control Inputs • Electromagnetic force, Fel • Fuel input, Qcomb • Controlled Outputs: • Output power, P • Ignition time, tign (VTEC, USFD)

  9. Control strategy (USFD, VTEC)

  10. Balancing of the free piston engine

  11. Main project results • Integral prototype, rated power 15-50 kW to confirm efficiency, emissions, control procedures, etc. • Experimental verification of performance. • Results from modelling the onboard electricity generation system, especially controllability, performance at part load and transients. • Results from scaling and packaging studies.

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