Effect of different exhaust parameters on conversion efficiency enhancement of a Pd–Rh three-way catalytic converter for heavy-duty natural gas engines

Y Tan, C Kou, E Jiaqiang, C Feng, D Han - Energy, 2024 - Elsevier
In this work, the influence of exhaust parameters on the conversion performance of the Pd–
Rh three-way catalytic converter (TWC) for heavy-duty natural gas engines is investigated by …

Under-Expanded Jets in Advanced Propulsion Systems—A Review of Latest Theoretical and Experimental Research Activities

F Duronio, C Villante, A De Vita - Energies, 2023 - mdpi.com
The current ongoing rise in environmental pollution is leading research efforts toward the
adoption of propulsion systems powered by gaseous fuels like hydrogen, methane, e-fuels …

[HTML][HTML] Experimental study of hydrogen jet dynamics: Investigating free momentum and impingement phenomena

M Yeganeh, MS Akram, Q Cheng, S Karimkashi… - International Journal of …, 2024 - Elsevier
There is a growing interest in the utilization of hydrogen (H 2), as a zero-carbon fuel, in
internal combustion engines (ICEs). Accordingly, the primary focus of this study is to …

Visualization research on hydrogen jet characteristics of an outward-opening injector for direct injection hydrogen engines

X Wang, B Sun, Q Luo, L Bao, J Su, J Liu, X Li - Fuel, 2020 - Elsevier
The hydrogen jet characteristics have effect on the performance of direction injector (DI)
hydrogen engines because they can influence the process of mixture formation and heat …

Simulation of high pressure, direct injection processes of gaseous fuels by a density-based OpenFOAM solver

F Duronio, S Ranieri, AD Mascio, AD Vita - Physics of Fluids, 2021 - pubs.aip.org
The direct injection of a gaseous fuel in internal combustion engines involves under-
expanded supersonic jets and complex air/fuel fluid-dynamics. Furthermore, with the high …

[HTML][HTML] Experimental study on high pressure injection characteristics of gas fuel based on turbulent constant volume combustion bomb

Y Wang, X Zhang, Y Li, J Sun - Energy Reports, 2024 - Elsevier
In the face of strict carbon regulations, the internal combustion engine industry is turning to
carbon-neutral and low-emission fuels. The experimental study of the high-pressure direct …

Three-way catalyst modeling and fuel switch optimization of a natural gas bi-fuel-powered vehicle

MM Teymoori, I Chitsaz, A Zarei - Fuel, 2023 - Elsevier
In contemporary societies, improving engine efficiency and emission are critical targets for
engine designers due to the increasing overwhelming popularity of electric powertrains …

Experimental investigation on the microscopic characteristics of underexpanded transient hydrogen jets

J Zhao, W Liu, Y Liu - International Journal of Hydrogen Energy, 2020 - Elsevier
The microscopic characteristics of hydrogen jet affect the concentration distribution and gas-
air mixing of high-pressure gas jets for a hydrogen engine. In this study, the schlieren …

Large-eddy simulation of a natural gas direct injection spark ignition engine with different injection timings

MR Yosri, T Kar, M Talei, RL Gordon, MJ Brear… - Fuel, 2023 - Elsevier
This paper presents a large-eddy simulation (LES) study of a compressed natural gas (CNG)
direct injection spark ignition (DISI) engine with different injection timings. Three cases with …

The characteristic analysis of high-pressure gas jets for natural gas engine based on shock wave structure

Q Dong, Y Li, E Song, C Yao, L Fan, J Sun - Energy Conversion and …, 2017 - Elsevier
High gas injection pressure leads to the formation of under-expanded gas jet at nozzle exit.
The shock wave structure near the nozzle affects gas jet injection and mixing characteristics …