Progress in Advanced Combustion and Reactive Flows Related to Clean Technologies and Alternative Fuels

A special issue of Fire (ISSN 2571-6255).

Deadline for manuscript submissions: 30 September 2025 | Viewed by 646

Special Issue Editors


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Guest Editor
School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210023, China
Interests: chemical looping; CFD; clean combustion; multiphase flow; carbon capture

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Guest Editor
Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO 63130, USA
Interests: computational fluid dynamics (CFD); computational magnetohydrodynamics (MHD); electromagnetics; computational aeroacoustics; multidisciplinary design and optimization; rarefied gas dynamics and hypersonic flows; bio-fluid dynamics; flow and flight control
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Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to the Special Issue titled “Progress in Advanced Combustion and Reactive Flows Related to Clean Technologies and Alternative Fuels”. With increasing environmental concerns and the need to reduce emissions, the field of combustion science is evolving rapidly. Clean combustion technologies, such as chemical looping combustion, oxy-fuel combustion, and flameless combustion, aim to maximize efficiency while minimizing pollutants like CO2 and NOx. Additionally, the use of alternative fuels, including biofuels, hydrogen, and ammonia, holds promise for reducing reliance on conventional fossil fuels. However, to fully realize the potential of these fuels, a deeper understanding of their combustion kinetics and mechanisms is required. Computational fluid dynamics (CFD) methods, including large eddy simulation (LES), direct numerical simulation (DNS), and Reynolds-averaged Navier–Stokes (RANS), play a vital role in modeling and optimizing the combustion systems for both clean technologies and alternative fuels.

This Special Issue aims to present the latest research on clean combustion technologies and the integration of alternative fuels, emphasizing experimental and computational approaches. We invite contributions that focus on the design and optimization of combustors, advanced CFD modeling of turbulent combustion, and insights into the combustion kinetics of alternative fuels.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Clean combustion technologies (chemical looping combustion, oxy-fuel combustion, flameless combustion, and other low-emission combustion techniques);
  • Combustor design and optimization (burner configurations, thermal management strategies, and optimization for various fuel types, from conventional to alternative fuels);
  • Computational fluid dynamics (CFD) simulations to model turbulent combustion and improve the design of clean combustion systems (large eddy simulation, direct numerical simulation, and Reynolds-averaged Navier–Stokes approaches, etc.);
  • Biofuels and alternative fuel combustion (biofuels, hydrogen, ammonia, and other renewable energy carriers);
  • Combustion kinetic and mechanisms in clean combustion and alternative fuel systems (combustion chemistry, reaction pathways, intermediate species formation).

We look forward to receiving your contributions.

Dr. Yali Shao
Prof. Dr. Ramesh Agarwal
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Fire is an international peer-reviewed open access monthly 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 2400 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

  • clean combustion
  • alternative fuels
  • chemical looping combustion
  • oxy-fuel combustion
  • combustor design
  • computational fluid dynamics simulation
  • hydrogen
  • ammonia
  • reaction mechnisms

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Published Papers (1 paper)

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Research

24 pages, 5877 KiB  
Article
Aspects Regarding the CO2 Footprint Developed by Marine Diesel Engines
by Octavian Narcis Volintiru, Daniel Mărășescu, Doru Coșofreț and Adrian Popa
Fire 2025, 8(6), 240; https://doi.org/10.3390/fire8060240 - 19 Jun 2025
Viewed by 314
Abstract
This study examines the emissions generated by a tall ship of 81.36 m length under various operating conditions, focusing particularly on carbon dioxide emissions at different navigation speeds. The main purpose of the paper is to establish theoretical and practical methods for calculating [...] Read more.
This study examines the emissions generated by a tall ship of 81.36 m length under various operating conditions, focusing particularly on carbon dioxide emissions at different navigation speeds. The main purpose of the paper is to establish theoretical and practical methods for calculating and measuring the level of CO2 emitted by the ship engines. Additionally, this article compares the results of carbon dioxide emission calculations based on theoretical methods with the results of real measurements. The paper verifies and assesses the carbon dioxide emission calculation methods compared to the emissions measured in real conditions for diesel engines. A comparative analysis of several methods for determining CO2 emissions leads to much more accurate and conclusive results close to reality. The results obtained through empirical and theoretical methods for determining CO2 emissions from the main engine demonstrate that the difference between these values is more accurate at lower engine loads but shows discrepancies at higher loads due to real-world inefficiencies, combustion variations, and model simplifications. The measured CO2 emission values for auxiliary engines at 60% load demonstrate consistency and closely reflect real operating conditions, while analytical calculations tend to be higher due to theoretical losses and model assumptions. Stoichiometric values fall in between, assuming ideal combustion but lacking adjustments for real variables. This highlights the efficiency of the diesel generator and the importance of empirical data in capturing actual emissions more accurately. The investigation aims to provide a detailed understanding of CO2 emission variations based on the ship’s operating parameters, including the study of these emissions at the level of the main diesel propulsion engine as well as the auxiliary engines. By analyzing these methods for determining engine emissions, conclusions can be reached about aspects such as the following: engine wear condition, efficiency losses, or incomplete combustion. This analysis has the potential to guide the implementation of new policies and technologies aimed at minimizing the carbon footprint of a reference ship, considering the importance of sustainable resource management and environmental protection in a viable long-term manner. Full article
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