A Study of the Impact of Methanol, Ethanol and the Miller Cycle on a Gasoline Engine

This paper focuses on the investigation and optimisation of Miller cycle, methanol, ethanol turbocharging when applied to a high-performance gasoline engine. These technologies have been both individually concurrently test for potential compounding effects. Improvements targeted with regards emission output performance. Also assessed is capability engine operate exclusively powered by biofuels. has carried out numerically using 1D gas dynamics tool ‘WAVE’, Navier–Stokes equation solver. implemented within McLaren M838T 3.8L twin-turbo The cycle early intake valve close (EIVC) improved peak efficiency 0.17% increased power at low medium loads 11%. Reductions 6% NOx CO were also found rated speed. biofuels achieved reductions 60% 96% respectively, alongside an increase 2.5%. Exclusive biofuel use was be feasible minimum 35% penalty. Applied cooperatively, not detrimental each other, effects further 0.05% 2% improvements achieved.