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Fundamental Problems in Combustion Physics Driving Renewable Energy Conversion

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "I2: Energy and Combustion Science".

Deadline for manuscript submissions: 10 March 2026 | Viewed by 35

Special Issue Editor


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Guest Editor
The Nordic Institute for Theoretical Physics, KTH Royal Institute of Technology and Stockholm University, Hannes Alfvéns väg 12, 114 21 Stockholm, Sweden
Interests: combustion and flame theory and modeling; dust explosions; detonation; exciton; bose condensation; magnetic biexcitons; high magnetic field; magnetic exciton

Special Issue Information

Dear Colleagues,

Combustion science serves as the foundation for energy conversion, propulsion systems, and emission control technologies. With the growing demand for sustainable energy solutions, understanding the fundamental physics of combustion processes has become more critical than ever. This Special Issue seeks to explore the underlying mechanisms that govern combustion phenomena across multiple scales—from molecular interactions to turbulent flame dynamics—and their implications for next-generation energy systems.

One of the key challenges in modern combustion research is bridging the gap between theoretical advancements and practical applications. While traditional combustion models have provided valuable insights, emerging technologies such as hydrogen combustion, carbon-neutral fuels, and plasma-assisted ignition demand new theoretical frameworks. Additionally, the integration of high-performance computing and machine learning offers unprecedented opportunities to refine predictive models and optimize combustion processes.

This Special Issue aims to showcase cutting-edge research that advances our understanding of combustion physics while addressing real-world energy challenges. Topics of interest include, but are not limited to, the following:

  • Microscopic mechanisms: Reaction kinetics, quantum chemistry of combustion intermediates, and catalytic combustion pathways;
  • Multiscale modeling: Coupling molecular dynamics with continuum approaches, machine learning for combustion simulations;
  • Emerging combustion paradigms: Low-temperature combustion, flameless oxidation, and turbulence-chemistry interactions;
  • Sustainable combustion strategies: Hydrogen and ammonia combustion, carbon capture-combustion integration, and emission reduction techniques;
  • Advanced diagnostics and simulations: High-fidelity experimental measurements, uncertainty quantification, and high-performance computing applications.

We invite original research articles, reviews, and case studies that contribute to the fundamental understanding of combustion processes and their applications in energy systems. Submissions that combine theoretical insights with experimental validation or computational modeling are particularly encouraged.

Prof. Dr. Michael Liberman
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • combustion
  • energy conversion
  • fuel

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Published Papers (1 paper)

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Research

15 pages, 3899 KB  
Article
Experimental and Kinetic Study of Laminar Burning Velocities for NH3/CH4/O2/NO/CO2 Premixed Flames
by Zuochao Yu, Yong He, Junjie Jiang, Wubin Weng, Siyu Liu, Shixing Wang and Zhihua Wang
Energies 2025, 18(18), 4853; https://doi.org/10.3390/en18184853 - 12 Sep 2025
Abstract
Ammonia, as a promising carbon-neutral fuel, has attracted growing attention for blended combustion applications from academia to industry. Low-NOx-combustion strategies such as staged combustion, oxygen-enriched combustion, and exhaust gas recirculation may lead to ammonia combustion in CO2-rich and NO-rich [...] Read more.
Ammonia, as a promising carbon-neutral fuel, has attracted growing attention for blended combustion applications from academia to industry. Low-NOx-combustion strategies such as staged combustion, oxygen-enriched combustion, and exhaust gas recirculation may lead to ammonia combustion in CO2-rich and NO-rich environments. In this work, the laminar burning velocities (SL) in NH3/CH4/O2/NO/CO2 flames with various ammonia blended ratios under atmospheric pressure were investigated using the heat flux method. The addition of NO to the oxidizer significantly enhances SL, with the enhancement factor ξ proportional to the NO fraction in the oxidizer and strongly dependent on the fuel composition. Chemical effects rather than thermal-diffusion effects dominate the enhancement of SL. Kinetic analysis shows that NO actively participates in the reaction network during the early flame stage, promoting the formation of key radicals such as H and OH through pathways like NH2 + NO = NNH + OH and NNH = N2 + H, thereby accelerating chain-branching and sustaining flame propagation. Full article
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