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August 1, 2025Open Access

Numerical Study of Hydrogen Pre-chamber Jet Ignition: for lean burn of Ammonia in an Internal Combustion Engine

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Authors

AGAnup GhimireBTBiraj Singh ThapaDEDavid Robert Emberson

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Overview

Numerical study investigates hydrogen pre-chamber combustion, highlighting challenges for lean-burn ammonia ignition.

Key Points

  • Lean-burn technology improves internal combustion engine efficiency, yet complicates ignition for ammonia fuels.
  • Hydrogen combustion in pre-chambers shows potential, with varying equivalence ratios affecting flame penetration and temperature.
  • Numerical analysis using OpenFoam reveals that rich hydrogen mixtures enhance ignition reliability over lean mixtures.
  • Finding optimal conditions may support ammonia's use as a sustainable fuel in heavy-duty transport applications.

Cite This Study

Ghimire et al. (2025) studied this question.

synapsesocial.com/papers/68af63e3ad7bf08b1eae4541https://doi.org/10.1088/1755-1315/1533/1/012030
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Also Consider

Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Numerical Investigation of Premixed and Non-premixed Ammonia Main Charge Configurations Ignited by a Hydrogen-Fired Prechamber2024 · 1 citations
  2. 2A Comprehensive Overview of Hydrogen-Fueled Internal Combustion Engines: Achievements and Future Challenges2021 · 333 citations