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 …

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 …

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 …

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 …

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 …

Pre-chamber (PC) ignition is a promising lean-burn technology to improve the efficiency of
spark ignition (SI) engines while achieving ultra-low NOx emissions. However, the …

The pre-chamber combustion concept (PCC) concept shows promises for lean combustion
to achieve improved combustion stability and engine efficiency. The KAUST narrow-throat …

Due to its potential to extend the lean limit or overcome knock-limited conditions on spark-
ignited (SI) engines, the pre-chamber spark-ignition (PCSI) concept has gained attention as …

Optimization of the performance of a heavy-duty natural gas active pre-chamber (PC) engine
was conducted using computational fluid dynamics (CFD) simulations. Seven different …

Active pre-chamber turbulent jet ignition is one of the most promising technologies for
developing low-or zero-carbon engines. However, the relevant fundamental studies are far …