Toward highly-efficient combustion of ammonia–hydrogen engine: Prechamber turbulent jet ignition

L Zhou, L Zhong, Z Liu, H Wei - Fuel, 2023 - Elsevier
Ammonia (NH 3) energy has emerged as a new international strategy to mitigate climate
change and energy crises because ammonia–hydrogen fuel can effectively overcome the …

Co-combustion of ammonia and hydrogen in spark ignition engines-State-of-the-art and challenges

W Tutak - International Journal of Hydrogen Energy, 2024 - Elsevier
To limit the negative impact on the environment, increasingly stringent regulations are being
introduced regarding the reduction of pollutant emissions. In automotive applications …

[HTML][HTML] Enhancing ammonia combustion with minimum hydrogen blended in presence of self-excited intermittent pulsating oscillations

Y Guan, D Zhao - Physics of Fluids, 2023 - pubs.aip.org
In this work, we propose and test a partial premixed fuel injection design of NH 3− H 2− O 2
with double ring-shaped inlets to enhance ammonia combustion in an open-ended …

Effect of ammonia energy fractions on combustion stability and engine characteristics of gaseous (ammonia/methane) fuelled spark ignition engine

C Kurien, PS Varma, M Mittal - International Journal of Hydrogen Energy, 2023 - Elsevier
Non-carbon nature and higher hydrogen energy density of ammonia have gained a lot of
interest as an energy asset and green fuel. In this work, the effects of ammonia fuel share …

Numerical simulation of lean premixed combustion characteristics and emissions of natural gas-ammonia dual-fuel marine engine with the pre-chamber ignition …

X Wu, Y Feng, Y Gao, C Xia, Y Zhu, M Shreka, P Ming - Fuel, 2023 - Elsevier
As an efficient hydrogen carrier, ammonia (NH 3) has great potential to realize the target of
carbon neutralization. In this paper, a natural gas-ammonia dual-fuel engine model has …

Experimental and numerical study on direct injection of liquid ammonia and its injection timing in an ammonia-biodiesel dual injection engine

E Nadimi, G Przybyła, T Løvås, G Peczkis, W Adamczyk - Energy, 2023 - Elsevier
Ammonia is an alternative carbon-free fuel that can be easily stored in a liquid phase, unlike
hydrogen, and then directly utilized in diesel engines. Hence, a single-cylinder diesel …

Recent advances in urban green energy development towards carbon emissions neutrality

KS Woon, ZX Phuang, J Taler, PS Varbanov… - Energy, 2023 - Elsevier
Climate change is a significant long-term threat faced by humanity today. The urban energy
transformation from a carbon-emissions-intensive environment to a carbon-emissions-free …

Effects of ammonia addition on the performance and emissions for a spark-ignition marine natural gas engine

W Wei, G Li, Z Zhang, Y Long, H Zhang, Y Huang… - Energy, 2023 - Elsevier
The application of natural gas (NG) and ammonia in internal combustion engines
contributes to reducing greenhouse gas (GHG) emissions. The present study aims to …

Mini review of ammonia for power and propulsion: advances and perspectives

TF Guiberti, G Pezzella, A Hayakawa… - Energy & Fuels, 2023 - ACS Publications
Ammonia is a molecule that has been essential to human activities for centuries. It is widely
used as a feedstock for fertilizers, industrial chemicals, and emissions after-treatment …

Numerical investigation of ammonia-rich combustion produces hydrogen to accelerate ammonia combustion in a direct injection SI engine

Z Lin, S Liu, W Liu, W Wang, K Cai, Y Qi… - International Journal of …, 2024 - Elsevier
Ammonia is a carbon-free fuel with significant potential to minimize carbon emissions.
However, ammonia has weak combustion properties, necessitating more study to improve …