A zero-dimensional HCCI combustion model for ammonia/hydrogen mixed gases was established to study the influence of hydrogen on the combustion characteristics of ammonia fuel. The effects of compression ratio, intake temperature, and hydrogen ratio on the combustion performance of ammonia were analyzed. The results suggest that due to the high ignition point of ammonia, the intake temperature must reach 523 K when the compression ratio is 18 for ammonia fuel to be compression ignited. At the same time, it was found that under this condition, ammonia fuel can burn under lean conditions ( ϕ =0.2). The study also found that when the intake temperature is 523 K, the minimum-to-compression ratio during ammonia compression ignition decreases from 18 to 10 as the hydrogen doping ratio increases from 0 to 0.2.
No takes yet. Share an insight, caveat, or question.
Nie et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: