Study on spray combustion characteristics of liquid ammonia/dimethyl ether dual fuel based on different injection strategies.

ABSTRACT: Ammonia is a green zero-carbon fuel, yet its low reactivity poses challenges, including difficult ignition and slow combustion rates. Compared to diesel or biodiesel, dimethyl ether (DME) has no C-C bonds, which means it produces almost no soot and has a high cetane number that helps it ignite easily. So, using the highly reactive DME to help ignite liquid ammonia is a good way to make it burn better. This study uses computer simulations to look at how well liquid ammonia and DME work together as fuel with different injection setups. Results indicate optimal DME ignition enhancement at injector spacing L = 6 cm, injection angle 180°, and ammonia energy share 70%, outperforming cases with spacings of 7-8 cm and angles of 150°, 120°, 90°, and 60°. At the same time, having shorter spacing dur

SUBMITTER: Fu J 

PROVIDER: S-EPMC12453256 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature