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Review of Ammonia Oxy-Combustion Technologies: Fundamental Research and Its Various Applications

Author

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  • Novianti Dwi

    (Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong 53064, Republic of Korea)

  • Kurniawati Ischia

    (Graduate Program, Department of Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong 53064, Republic of Korea)

  • Yonmo Sung

    (Department of Smart Energy & Mechanical Engineering, Gyeongsang National University, Tongyeong 53064, Republic of Korea)

Abstract

The combustion of ammonia with oxygen presents a promising pathway for global energy transformation using carbon dioxide-neutral energy solutions and carbon capture. Ammonia, a carbon-free fuel, offers several benefits, owing to its non-explosive nature, high octane rating, and ease of storage and distribution. However, challenges such as low flammability and excessive nitrogen oxide (NO x ) emissions must be addressed. This paper explores the recent advances in ammonia oxy-combustion and highlights recent experimental and numerical research on NO x emission traits, combustion, and flame propagation across various applications, including gas furnaces, internal combustion engines, and boilers. Furthermore, this review discusses the diverse approaches to overcoming the challenges of ammonia combustion, including oxygen enrichment, fuel blending, plasma assistance, preheating, multiple injections, and burner design modifications. By summarizing the advancements in ammonia oxy-combustion investigation, this paper aims to provide valuable insights that can serve as reference information for prospective ammonia oxy-combustion research and applications toward the transition to sustainable energy.

Suggested Citation

  • Novianti Dwi & Kurniawati Ischia & Yonmo Sung, 2025. "Review of Ammonia Oxy-Combustion Technologies: Fundamental Research and Its Various Applications," Energies, MDPI, vol. 18(9), pages 1-44, April.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:9:p:2252-:d:1644795
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    References listed on IDEAS

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