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Energies
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Sustainable Internal Combustion Engines
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Sustainable Internal Combustion Engines

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

Deadline for manuscript submissions: closed (15 March 2022) | Viewed by 8166

Special Issue Editors

Dr. Rodica Niculescu

E-Mail Website
Guest Editor
Department Automobiles and Transport, University of Pitesti, Targul din Vale street 1, 110040 Pitesti, Romania
Interests: internal combustion engines; thermodynamics of internal combustion engine; fuels and lubricants
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Adrian Clenci

E-Mail Website
Guest Editor
Department Automobiles and Transport, University of Pitesti, Targul Din Vale St 1, 110040 Pitesti, Romania
Interests: automobile engineering; internal combustion engines; thermodynamics of internal combustion engine; variable valve actuation; variable compression ratio; turbocharging; CFD simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Undoubtedly, road mobility is the engine of the economic development and is one of the fundamental aspects of the human society, because it allows everyone the freedom of movement. However, road mobility, which is a significantly growing sector worldwide, is currently one of the main sources of the greenhouse gas emissions (specifically, CO2 emissions) and city pollution. More exactly, the internal combustion engine as the most used technology for ensuring that road mobility is held accountable for the intensification of the above-presented problems. Consequently, facing ever-stricter regulations and increasing competition from the electric alternative, there is a pressure without precedent to make the internal combustion engine cleaner and more efficient, while still keeping its well-known value-for-money feature. In other words, the ongoing optimization of the internal combustion engine is still essential for the future of road mobility, which objectively speaking, cannot be suddenly shifted to fully electric vehicles.

This is why the main purpose of this Special Issue is to gather the latest scientific results on the following generic topics: (1) “how-to-burn” a fuel in order to achieve highly efficient and clean internal combustion engine suitable for the sustainable road mobility and (2) “what-to-burn” inside an engine, i.e., sustainable fuels produced from renewable energy sources.

Thus, papers are invited on (but not necessarily limited to) any of the generic topics below. Any other paper presented on a topic not explictly quoted below, but having scientific interest for this Special Issue will be taken into consideration.

Finally, as editors coming from academia, we also hope that with these papers, we will succeed in clearly and impartially telling all our students and young engineers why a research career in internal combustion engines is still worthwhile.

Prof. Rodica Niculescu
Prof. Adrian Clenci
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. 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

  • Technologies for IC engine’s efficiency improvement and CO2 reduction
  • Clean engine technologies
  • Real driving emissions
  • Environmental impact assessment via total life cycle analysis
  • Sustainable fuels
  • Progress in materials and manufacturing of IC engine
  • Thermodynamic improvements
  • Fuels
  • Sustainability

Published Papers (3 papers)

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Research

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16 pages, 3981 KiB  
Article
Impact of Blow-By Gas and Endgap Ring Position on the Variations of Particle Emissions in Gasoline Engines
by Vincent Berthome, David Chalet and Jean-François Hetet
Energies 2021, 14(22), 7492; https://0-doi-org.brum.beds.ac.uk/10.3390/en14227492 - 09 Nov 2021
Cited by 4 | Viewed by 2788
Abstract
Particulate emission from internal combustion engines is a complex phenomenon that needs to be understood in order to identify its main factors. To this end, it appears necessary to study the impact of unburned gases, called blow-by gases, which are reinjected into the [...] Read more.
Particulate emission from internal combustion engines is a complex phenomenon that needs to be understood in order to identify its main factors. To this end, it appears necessary to study the impact of unburned gases, called blow-by gases, which are reinjected into the engine intake system. A series of transient tests demonstrate their significant contribution since the particle emissions of spark-ignition engines are 1.5 times higher than those of an engine without blow-by with a standard deviation 1.5 times greater. After analysis, it is found that the decanter is not effective enough to remove completely the oil from the gases. Tests without blow-by gases also have the advantage of having a lower disparity, and therefore of being more repeatable. It appears that the position of the “endgap” formed by the first two rings has a significant impact on the amount of oil transported towards the combustion chamber by the backflow, and consequently on the variation of particle emissions. For this engine and for this transient, 57% of the particulate emissions are related to the equivalence ratio, while 31% are directly related to the ability of the decanter to remove the oil of the blowby gases and 12% of the emissions come from the backflow. The novelty of this work is to relate the particles fluctuation to the position of the endgap ring. Full article
(This article belongs to the Special Issue Sustainable Internal Combustion Engines)
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18 pages, 8719 KiB  
Article
Flow Field Parametric Interpolation Using a Proper Orthogonal Decomposition: Application to the Variable Valve Timing Effect on a Tumble In-cylinder Miller Engine Mean Flow
by Marcellin Perceau, Philippe Guibert and Stéphane Guilain
Energies 2021, 14(17), 5324; https://0-doi-org.brum.beds.ac.uk/10.3390/en14175324 - 27 Aug 2021
Cited by 2 | Viewed by 1540
Abstract
The current article presents a method to reconstruct the mean velocity field of a cyclic flow for an input parameter value that has not been measured, allowing for the number of tests to be reduced. It is applied to the tumble flow of [...] Read more.
The current article presents a method to reconstruct the mean velocity field of a cyclic flow for an input parameter value that has not been measured, allowing for the number of tests to be reduced. It is applied to the tumble flow of a gasoline engine following a Miller cycle. New engines often include variable valve timing (VVT) systems to maximize the efficiency of such over-expanded cycles for different operating points. The reconstruction was thus carried out using different offset values of the intake valve lift timing. Experimental data were collected from a transparent engine in an early intake valve closing (EIVC) configuration using particle image velocimetry (PIV). The mean velocity field reconstruction was based on the interpolation of the proper orthogonal decomposition (POD) coefficients. The accuracy of the method was evaluated at different points by comparing the interpolated and the measured flow fields. The accuracy was estimated by calculating the error in the rotation rate of the tumble and the position of its center of rotation. The new mean velocity field set allowed for the position of the tumble’s center of rotation to be closely tracked according to the input parameter and a rotation rate map to be made. Some results on Miller’s cycle could thus be found and the data generated could guide future developments. Full article
(This article belongs to the Special Issue Sustainable Internal Combustion Engines)
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Review

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22 pages, 2084 KiB  
Review
A Review of Engine’s Performance When Supercharging by a Pressure Wave Supercharger
by Iuliana Costiuc, Anghel Chiru and Liviu Costiuc
Energies 2022, 15(8), 2721; https://0-doi-org.brum.beds.ac.uk/10.3390/en15082721 - 07 Apr 2022
Cited by 3 | Viewed by 2651
Abstract
Improving the performance of internal combustion engines (ICE), together with lowering emissions, are the main targets for specialists in the automotive field. One option for increasing engine efficiency is creating a considerable amount of boost for the inlet combustion air by means of [...] Read more.
Improving the performance of internal combustion engines (ICE), together with lowering emissions, are the main targets for specialists in the automotive field. One option for increasing engine efficiency is creating a considerable amount of boost for the inlet combustion air by means of supercharging. In addition to common turbochargers, an alternative solution that has interested researchers for almost a century is the pressure wave supercharger (PWS). This paper is, at first, a complimentary tribute to most of the researchers that studied, experimented with and improved PW supercharging technology from the 50′s to the present. Second, this review emphasizes the performance achieved by ICEs when using PW supercharging, highlighting the limits of these main parameters in different operating conditions, based on the main reported results in the literature. It also provides an overview of PW supercharging technology, with its main advantages and disadvantages and suggests some technical solutions or geometric adjustments to improve its operation. Even though in recent years this technology has registered a decrease of interest, there are still preoccupations, especially in the aeronautical industry, justified by the profitability and simplicity of PW devices. The results of this theoretical work can be exploited practically in PWS design and applications. Full article
(This article belongs to the Special Issue Sustainable Internal Combustion Engines)
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