Numerical Simulation of Multi Injector Cylinder Head Engine Concept enhancing fuel atomization Tablet School - UIDE

Format:

Book

Conference/Event

Author/Creator:

Gutiérrez, Marcos, author.

Contributor:

Cheranev, Svyatoslav

Taco, Diana

Conference Name:

15th International Conference on Engines & Vehicles (2021-09-12 : Capri, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

While the fuel injection systems have been upgraded to the latest technology, the homogeneous air-fuel mixture still depends on turbulence and fuel injection pressure. The present research estimates the effect of the spray collision of fossil fuels as well as biodiesel from recycled mineral-synthetic and vegetable-animal sources, with opposed injectors in the combustion chamber of compression ignition engines, in order to reduce the diameter of the atomized fuel drops and enhance the air fuel mixture. The breakup and interaction of the spray are simulated in transient conditions with OpenFOAM®, considering not only fluid dynamics but also the combustion process. The diameter of atomized fuel drops could be reduced by more than 5%, and by shifting injectors' position but keeping the interaction of the sprays swirls of the injected fuel and its flame, but mainly above the center of the piston, reducing the fuel impingement on the cylinder walls. There is a need to standardize the numerical and computational models of new concepts to enhance the fuel atomization and the air fuel mixture, especially with the use of alternative fuels on big and low speed diesel engines, which have the potential to supply energy with the recycling of waste substances as fuel. The simulation shows that the limitations of alternative and high viscous fuels could be surpassed with the fuel spray collision instead of the injection pressure reaching the physical and technological limit

Notes:

Vendor supplied data

Publisher Number:

2021-24-0055

Access Restriction:

Restricted for use by site license