Combustion Systems for Advanced Engines

Dear Colleagues,

The development of high-efficiency, low-emission propulsion systems remains a central priority in energy and transportation research. Combustion systems, in particular, continue to play a critical role in the performance, fuel flexibility, and environmental impact of modern engines, from aviation and automotive applications to power generation and distributed energy systems.

This Special Issue aims to gather cutting-edge research focused on innovative combustion strategies, experimental and numerical modeling, and system-level integration for advanced engines. Emphasis will be placed on novel technologies that contribute to increased thermal efficiency, cleaner combustion, fuel adaptability, and improved reliability across a wide range of operating conditions.

We invite original research papers, reviews, and case studies that explore new directions in combustion science, with a particular focus on applications in next-generation internal combustion engines, gas turbines, hybrid propulsion, and alternative fuel systems. Interdisciplinary approaches combining fluid dynamics, thermodynamics, chemistry, and control engineering are strongly encouraged.

Topics of interest include (but are not limited to) the following:

• Advanced combustion chamber geometries and optimization methods;
• Low-temperature and pre-chamber combustion strategies;
• High-pressure fuel injection and atomization;
• Biofuels, e-fuels, hydrogen, and ammonia combustion;
• Emission reduction technologies and soot formation analysis;
• Numerical simulation of turbulent reactive flows;
• Advanced diagnostics for combustion phenomena;
• Waste heat recovery and thermal management;
• Engine performance optimization under real-world conditions;
• Integration of combustion systems into hybrid powertrains.

Dr. Grigore Cican
Guest Editor

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 250 words) can be sent to the Editorial Office for assessment.

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.