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Advances in Combustion Science for Sustainable Energy Systems
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Advances in Combustion Science for Sustainable Energy Systems

A Special Issue of Energies (ISSN 1996-1073) belonging to the section "I2: Energy and Combustion Science".

Deadline for manuscript submissions: 15 October 2026 | Viewed by 1352

Editors

Dr. Venera Giurcan

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Guest Editor
“Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
Interests: combustion, flames, and explosion of gaseous homogeneous systems; explosion initiation and propagation in enclosures at various initial conditions; flammability of hydrocarbon–oxidizer mixtures (including the presence of diluent or inhibitor gaseous additives)
Special Issues, Collections and Topics in MDPI journals
Dr. Codina Movileanu

E-Mail Website
Guest Editor
“Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
Interests: chemical kinetics; combustion; additives; explosion; closed vessel
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Combustion science remains essential in the transition to sustainable energy, connecting fundamental research with practical applications in power generation, propulsion as well as industrial processes. This Special Issue invites original research and reviews on topics such as advanced combustion modeling (e.g., turbulent flames, deflagration dynamics), novel fuels (e.g., syngas from biomass gasification, hydrogen blends), efficiency improvements through artificial intelligence-based simulations or nanomaterials, pollutant mitigation strategies (e.g., NOx reduction) and integration with renewable energy sources such as biofuels or carbon capture. Experimental, numerical and innovative studies addressing energy efficiency, emissions reduction and scalable deployment challenges are crucial for advancing clean-burning technologies. Contributions from global researchers across academia, industry and policy are essential to drive breakthroughs in sustainable combustion and shape the future of resilient energy systems.

Dr. Venera Giurcan
Dr. Codina Movileanu
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 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-anonymized 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

  • clean-burning technologies
  • sustainable combustion
  • advanced combustion modeling
  • bio and clean fuels
  • pollutant mitigation
  • energy efficiency
  • nanomaterials

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Related Special Issue

Published Papers (3 papers)

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Research

46 pages, 23010 KB  
Article
A Reduced Multi-Component Kinetic Mechanism Considering Fuel Volatility for Combustion of Various Distillation Fractions from a Full-Range Fuel in Diesel Engines
by Guixian Zhang, Han Wu, Timothy Haw-Yu Lee, Zhikun Cao and Xiangrong Li
Energies 2026, 19(17), 4176; https://doi.org/10.3390/en19174176 - 3 Sep 2026
Viewed by 230
Abstract
Fuel design based on distillation fractions is crucial for advancing fuel development and optimizing combustion systems. However, the chemical diversity and broad boiling-point distribution of full-range fuels pose significant challenges for kinetic modeling. In this study, a volatility-aware, multi-component kinetic mechanism was developed [...] Read more.
Fuel design based on distillation fractions is crucial for advancing fuel development and optimizing combustion systems. However, the chemical diversity and broad boiling-point distribution of full-range fuels pose significant challenges for kinetic modeling. In this study, a volatility-aware, multi-component kinetic mechanism was developed for simulating the combustion of various distillation fractions from an FRF in diesel engines. The mechanism comprises 261 species and 860 reactions. Unlike conventional surrogate mechanisms designed primarily for a single fuel or narrow distillation range, the proposed framework simultaneously represents the major hydrocarbon classes, ignition quality, and boiling-point distribution of FRF. The surrogate palette includes n-pentane, n-heptane, n-decane, n-dodecane, n-hexadecane, heptamethylnonane, 1-methylnaphthalene, iso-octane, methylcyclohexane, decalin, toluene, tetralin, and 1,2,4-trimethylbenzene. These components were selected to reproduce the molecular structures, ignition characteristics, and distillation behavior of the target fuel fractions. The mechanism was further refined through targeted replacement of the toluene sub-mechanism using updated hydrogen-abstraction and benzyl-radical oxidation reactions, followed by a fuel-oriented five-stage reduction strategy involving reaction-pathway-based pruning, DRGEP reduction, isomer lumping, sensitivity/ROP refinement, and targeted rate optimization. The resulting mechanism provides reasonable predictions of ignition delay, laminar flame speed, and species profiles for pure components, surrogate fuels, and real gasoline, jet, and diesel fuels. Coupled with a three-dimensional CFD model, the reduced mechanism also reproduces the main combustion phasing, pressure-rise process, and peak in-cylinder pressure of a diesel engine at 500 and 800 r/min over the investigated intake-temperature range. Although discrepancies remain in the low-temperature/negative-temperature-coefficient regime and in the quantitative prediction of the peak apparent heat-release rate, the mechanism provides a unified and practical framework for linking FRF distillation characteristics with chemical reactivity and engine-level combustion behavior. It therefore offers a foundation for designing tailored fuels from distillation fractions for operation in extreme environments. Full article
(This article belongs to the Special Issue Advances in Combustion Science for Sustainable Energy Systems)
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26 pages, 2923 KB  
Article
Measurement-Oriented Dynamic Synchronization of Engine and Tailpipe Emission Signals for Comparing Stationary and Dynamic Test Results
by Anna Borucka, Mariusz Klimas, Jerzy Merkisz and Adam Sordyl
Energies 2026, 19(13), 2969; https://doi.org/10.3390/en19132969 - 24 Jun 2026
Viewed by 307
Abstract
Exhaust emission assessment of heavy-duty diesel engines is commonly based on complementary steady-state and transient procedures, represented by the World Harmonized Steady-State Cycle (WHSC) and the World Harmonized Transient Cycle (WHTC). However, under transient operation, tailpipe NOx and CO2 signals cannot [...] Read more.
Exhaust emission assessment of heavy-duty diesel engines is commonly based on complementary steady-state and transient procedures, represented by the World Harmonized Steady-State Cycle (WHSC) and the World Harmonized Transient Cycle (WHTC). However, under transient operation, tailpipe NOx and CO2 signals cannot be directly assigned to instantaneous engine operating states because the measured response is affected by transport delay, analyser dynamics, and signal dispersion within the measurement chain. This paper proposes a machine-learning-assisted dynamic synchronization framework for aligning engine operating signals with tailpipe emissions under transient conditions. The method uses actual engine torque as the primary dynamic reference and determines local effective alignment between emission readings and the engine operating states that generated them. The synchronized data are then evaluated using an XGBoost-based modelling approach to assess whether emission characteristics obtained from WHSC steady-state operation can be transferred to WHTC transient operation. The results show that the proposed synchronization improves the physical consistency of transient emission data and provides a more reliable basis for comparing stationary and dynamic test outcomes. The transferability analysis indicates good predictive consistency for CO2, whereas NOx shows only partial transferability, reflecting stronger transient sensitivity and more complex formation dynamics. The proposed framework supports intelligent emission-data preprocessing, data-driven interpretation of heavy-duty engine tests, and assessment of the representativeness of steady-state tests under transient operating conditions. Full article
(This article belongs to the Special Issue Advances in Combustion Science for Sustainable Energy Systems)
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37 pages, 5164 KB  
Article
Comparative Assessment of Diesel–Palm-Based Biodiesel and Green Diesel Blends on Engine Performance, Operating Parameters, and Acoustic Emissions in a Compression-Ignition Engine
by Nur Cahyo, Berkah Fajar Tamtomo Kiono, M. S. K. Tony Suryo Utomo, Mujammil Asdhiyoga Rahmanta and P. Paryanto
Energies 2026, 19(12), 2930; https://doi.org/10.3390/en19122930 - 21 Jun 2026
Viewed by 454
Abstract
A short-term performance test of blended biodiesel (FAME), green diesel (HVO), and diesel was experimentally assessed in a 100 kW Cummins 6BTAA5.9-G12 diesel engine under multiple load conditions. The objective was to determine the technical feasibility, operational trade-offs, and optimal blend formulations for [...] Read more.
A short-term performance test of blended biodiesel (FAME), green diesel (HVO), and diesel was experimentally assessed in a 100 kW Cummins 6BTAA5.9-G12 diesel engine under multiple load conditions. The objective was to determine the technical feasibility, operational trade-offs, and optimal blend formulations for renewable energy deployment in diesel power plants. All tested blends operated stably without engine modification, confirming the “drop-in capability” of FAME–HVO mixtures for existing diesel engines. Specific fuel consumption (SFC) increased notably at high loads, with penalties up to 15.15% for B30D20 and B35D15 relative to neat diesel, although overall efficiency improved with load. Among the ternary fuels, B30D10 and B30D20 provided the most balanced compromise between combustion reactivity and flow properties. Exhaust gas temperatures rose with load for all fuels, with FAME-rich blends exhibiting higher temperatures than neat diesel, while coolant-side analysis showed D100 and D50 as thermally favorable and B50–B100 imposing the highest cooling demand. The results emphasize the need for injection system recalibration on an energy basis for HVO-rich fuels, and for strengthened filtration and maintenance practices for FAME-rich blends to avoid filter clogging and injection instability. Considering performance, operability, and system stability up to 100 kW, B30D10 and B35D15 are identified as optimal compromise blends. The study highlights the necessity of future work on long-term durability, fuel system compatibility, supply chain robustness, and techno-economic viability to safely scale green diesel use in Indonesian stationary power generation. Full article
(This article belongs to the Special Issue Advances in Combustion Science for Sustainable Energy Systems)
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