Effects of direct injection and mixture enleament on the combustion of hydrous ethanol and an ethanol-gasoline blend in an optical engine

ERM de Oliveira, CH Rufino, PT Lacava - Fuel, 2022 - Elsevier
Ethanol is a renewable fuel and can be used in electric hybrid vehicles concepts, especially
for countries capable of producing such fuel in a sustainable way. A strategy to enhance …

Flame front propagation in an optical GDI engine under stoichiometric and lean burn conditions

S Martinez, A Irimescu, SS Merola, P Lacava… - Energies, 2017 - mdpi.com
Lean fueling of spark ignited (SI) engines is a valid method for increasing efficiency and
reducing nitric oxide (NOx) emissions. Gasoline direct injection (GDI) allows better fuel …

Investigation on the effects of butanol and ethanol fueling on combustion and PM emissions in an optically accessible DISI engine

A Irimescu, SS Merola, S Di Iorio, BM Vaglieco - Fuel, 2018 - Elsevier
Generalization of direct injection and use of alternative fuels in spark ignition engines, are
two trends that require detailed analysis of specific phenomena. Within this context, the …

Development of a semi-empirical convective heat transfer correlation based on thermodynamic and optical measurements in a spark ignition engine

A Irimescu, SS Merola, C Tornatore, G Valentino - Applied Energy, 2015 - Elsevier
Internal combustion engines are still the main technology for energy conversion in
automotive transport and are set to remain the main choice of propulsion solutions for some …

In-cylinder pressure-based direct techniques and time frequency analysis for combustion diagnostics in IC engines

S d'Ambrosio, A Ferrari, L Galleani - Energy Conversion and Management, 2015 - Elsevier
In-cylinder pressure measurement and analysis has historically been a key tool for off-line
combustion diagnosis in internal combustion engines, but online applications for real-time …

Characterization of flame front propagation during early and late combustion for methane-hydrogen fueling of an optically accessible SI engine

A Peñaranda, SDM Boggio, PT Lacava… - International Journal of …, 2018 - Elsevier
In recent years, hybrid and fully electric vehicles have received significant consideration
since they represent an alternative sustainable transport to the conventional fossil-fuel …

An optical method to characterize streamer variability and streamer-to-flame transition for radio-frequency corona discharges

V Cruccolini, CN Grimaldi, G Discepoli, F Ricci… - Applied Sciences, 2020 - mdpi.com
Featured Application igniter end-of-line testing. Abstract In recent years, radio-frequency
corona ignition gained increasing interest from the engine research community because of …

Influence of engine speed and injection phasing on lean combustion for different dilution rates in an optically accessible wall-guided spark ignition engine

A Irimescu, SS Merola, S Martinez - SAE International Journal of Engines, 2018 - JSTOR
Alternative combustion control in the form of lean operation offers significant advantages
such as high efficiency and “clean” fuel oxidation. Maximum dilution rates are limited by …

Luminosity and thermal energy measurement and comparison of a dielectric barrier discharge in an optical pressure-based calorimeter at engine relevant conditions

F Ricci, V Cruccolini, G Discepoli, L Petrucci… - 2021 - sae.org
The amount of the thermal energy released in a gas mixture is crucial to characterize the
igniter capability to start a robust ignition in internal combustion engines, especially in …

Effect of coolant temperature on air–fuel mixture formation and combustion in an optical direct injection spark ignition engine fueled with gasoline and butanol

A Irimescu, SS Merola, C Tornatore… - Journal of the Energy …, 2017 - Elsevier
Diversification of the energy mix and the drive for increasing security of supply have
extended the use of alternative fuels in internal combustion engines. Butanol is a viable …