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Energies
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Volume II: Combustion and Propulsion
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Volume II: Combustion and Propulsion

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (15 January 2019) | Viewed by 6024

Special Issue Editors

Dr. Maria Grazia De Giorgi

E-Mail Website
Guest Editor
Department of Engineering for Innovation, University of Salento, Via Per Arnesano, I-73100 Lecce, Italy
Interests: energy systems; propulsive systems; fluid machinery; applied fluid dynamics; combustion
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Antonio Ficarella

E-Mail Website
Guest Editor
Department of Engineering for Innovation, University of Salento, Via Per Arnesano, I-73100 Lecce, Italy
Interests: energy systems; propulsive systems; fluid machinery; applied fluid dynamics; combustion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The success of the first edition in 2017 prompted the organizers to propose Volume II of the Special Issue “Combustion and Propulsion”

Combustion processes play a key role in the efficiency of energy use and for the environmental impact of transportation systems. The present issue focuses on research advances of propulsion and combustion. The aim is the dissemination of original papers contributing to advancements in combustion systems and advanced propulsion; engines; rockets; fuels and propellants; power generation and conversion for aerospace and terrestrial vehicles.

The proposed issue focuses on experimental, theoretical, and computational investigations on the fundamentals of combustion in propulsion systems, and on the resulting lines of technological development. The articles can cover a wide range of topics, such as combustion in gas turbines and internal combustion engines for aeronautical, automotive, naval and railway engines, chemical space propulsion, active control of the combustion in propulsive systems and diagnostics, new and renewable fuels, alternative combustion-based propulsion systems, new combustion concepts, pollutants formation and control in propulsive systems.

Prof. Maria Grazia De Giorgi
Prof. Antonio Ficarella
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

  • combustion control
  • alternative fuels
  • renewable fuels
  • fuel injection
  • air-fuel mixing
  • lean combustion
  • micro-scale combustion
  • active control of combustion
  • alternative combustion concepts
  • alternative combustion-based propulsion systems
  • pollutants formation
  • pollutants control
  • gas turbines
  • internal combustion engines
  • combustion instabilities
  • combustion diagnostics
  • combustion numerical simulation
  • space chemical propulsion

Published Papers (1 paper)

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Research

25 pages, 5638 KiB  
Article
Prediction Modeling and Analysis of Knocking Combustion using an Improved 0D RGF Model and Supervised Deep Learning
by Seokwon Cho, Jihwan Park, Chiheon Song, Sechul Oh, Sangyul Lee, Minjae Kim and Kyoungdoug Min
Energies 2019, 12(5), 844; https://doi.org/10.3390/en12050844 - 04 Mar 2019
Cited by 22 | Viewed by 5444
Abstract
The knock phenomenon is one of the major hindrances for enhancing the thermal efficiency in spark-ignited engines. Due to the stochastic behavior of knocking combustion, analytical cycle studies are required. However, there are many problems to be addressed with regard to the individual [...] Read more.
The knock phenomenon is one of the major hindrances for enhancing the thermal efficiency in spark-ignited engines. Due to the stochastic behavior of knocking combustion, analytical cycle studies are required. However, there are many problems to be addressed with regard to the individual cycle analysis of in-cylinder pressure data. This study thus proposes novel, comprehensive and efficient methodologies for evaluating the knocking combustion in the internal combustion engine. The proposed methodologies include a filtering method for the in-cylinder pressure, the determination of the knock onset, and the calculation of the residual gas fraction. Consequently, a smart knock onset model with high accuracy could be developed using a supervised deep learning that was not available in the past. Moreover, an improved zero-dimensional (0D) estimation model for the residual gas fraction was developed to obtain better accuracy for closed system analysis. Finally, based on a cyclic analysis, a knock prediction model is suggested; the model uses 0D ignition delay correlation under various experimental conditions including aggressive cam phase shifting by a dual variable valve timing (VVT) system. Using the proposed analysis method, insight into stochastic knocking combustion can be obtained, and a faster combustion speed can lead to a higher knock intensity in a steady-state operation. Full article
(This article belongs to the Special Issue Volume II: Combustion and Propulsion)
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