Legislations for greenhouse gas and pollutant emissions from light-duty vehicles are
pushing the spark ignition engine to be cleaner and more efficient. As one of the promising …

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 …

Ammonia has demonstrated great potential for achieving zero carbon emissions from
internal combustion engines. However, the application of ammonia in engines faces the …

Ammonia-based internal combustion engines (ICEs) produce carbon-free emissions.
However, the application of ammonia in ICEs results in difficult ignition, combustion …

This review covers efforts to optimize combustion in spark ignition and compression ignition
engines using pre-chamber ignition systems, with a focus on the fuel used in the pre …

The pre-chamber jet ignition technology significantly enhances the thermal efficiency and
lean burn limit of the engine. In this study, a single-cylinder pre-chamber engine is subjected …

The combustion of hydrogen generates almost no harmful emissions except for nitric oxides
(NO x), which could be effectively eliminated under lean-burn conditions. In particular, the …

The pre-chamber ignition concept is an attractive strategy to enable the operation of spark-
ignition engines in lean or diluted conditions keeping a suitable combustion process …

Pre-chamber combustion (PCC) has the potential to extend the lean-burn limit in spark-
ignition engines, which can promote engine efficiency and relieve the concern of emissions …

Abstract Hydrogen (H 2) and ammonia (NH 3) are ideal carbon-free fuels, and the
application of NH 3/H 2 in internal combustion engines offers the potential to reduce carbon …