Improving thermal efficiency of internal combustion engines: recent progress and remaining challenges

RY Dahham, H Wei, J Pan - Energies, 2022 - mdpi.com
Improving thermal efficiency and reducing carbon emissions are the permanent themes for
internal combustion (IC) engines. In the past decades, various advanced strategies have …

Spray–turbulence–chemistry interactions under engine-like conditions

L Zhou, W Zhao, KH Luo, H Wei, M Xie - Progress in Energy and …, 2021 - Elsevier
Turbulent multiphase combustion plays an important role in both nature (eg, volcanos and
pool fires) and industry (eg, industrial furnaces, aeroengines, and internal combustion …

Visualization study on the ignition and diffusion combustion process of liquid phase ammonia spray ignited by diesel jet in a constant volume vessel

Z Zhang, W Long, Z Cui, P Dong, J Tian, H Tian… - Energy Conversion and …, 2024 - Elsevier
Ammonia fueled engines applying diffusion combustion mode is expected to further improve
the thermal and combustion efficiencies with high burning rate and high ammonia energy …

Diesel spray and combustion of multi-hole injectors with micro-hole under ultra-high injection pressure–non-evaporating spray characteristics

C Zhai, Y Jin, K Nishida, Y Ogata - Fuel, 2021 - Elsevier
Increasing the injection pressure and reducing the nozzle hole diameters can increase the
thermal efficiency of diesel engines (DI). To understand the spray characteristics under ultra …

Experimental study on spray and atomization characteristics under subcritical, transcritical and supercritical conditions of marine diesel engine

J Xia, Z Huang, L Xu, D Ju, X Lu - Energy Conversion and Management, 2019 - Elsevier
In this research, detailed characteristics of diesel spray and atomization based on marine
engine scale have been studied under subcritical, transcritical and supercritical conditions …

Effects of injection pressure on ignition and combustion characteristics of impinging diesel spray

W Du, Q Zhang, Z Zhang, J Lou, W Bao - Applied energy, 2018 - Elsevier
The constant injection mass is a criterion for measuring the thermal efficiency of diesel
engines. In this study, the effects of the injection pressure on the ignition and combustion …

A numerical study on the in-nozzle cavitating flow and near-field jet breakup of a spirally grooved hole nozzle using a LES-VOF method

X Leng, Y Deng, W Guan, W Xie, Z He, Q Wang, X Yan… - Fuel, 2022 - Elsevier
To enhance fuel atomization for diesel engines, a spirally grooved hole (SGH) nozzle, in
which several spiral arc grooves are set on the inner wall of tapered holes of a nozzle …

Characterization of diesel spray combustion using two-color pyrometry and OH∗ chemiluminescence imaging-comparison between micro-hole and ultra-high …

C Zhai, G Zhang, Y Jin, K Nishida, Y Ogata… - Journal of the Energy …, 2022 - Elsevier
Increasing the injection pressure and reducing the hole diameter are development
directions for future diesel engines. In this study, the effects of increasing the injection …

Effects of spray behavior and wall impingement on particulate matter emissions in a direct injection spark ignition engine equipped with a high pressure injection …

Z Lee, D Kim, S Park - Energy Conversion and Management, 2020 - Elsevier
The effects of injection pressure on spray behaviors governing particulate matter emissions
were investigated for various injection timings and engine loads in an optically accessible …

Experimental study of injection characteristics under diesel's sub/trans/supercritical conditions with various nozzle diameters and injection pressures

J Xia, Q Zhang, Z Huang, D Ju, X Lu - Energy Conversion and Management, 2020 - Elsevier
The supercritical fluid combustion technology was expected to enhance fuel-gas mixing and
heat exchange management both in the application of automobile and marine engines …