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Entropy
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Thermodynamic Evaluation and Optimization of Combustion Processes
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Thermodynamic Evaluation and Optimization of Combustion Processes

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Thermodynamics".

Deadline for manuscript submissions: 23 May 2024 | Viewed by 1434

Special Issue Editors

Prof. Dr. Chun Lou

E-Mail Website
Guest Editor
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: combustion measurement and diagnostic; radiative heat transfer; soot formation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jaroslaw Krzywanski

E-Mail Website
Guest Editor
Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, Armii Krajowej 13/15, 42-200 Czestochowa, Poland
Interests: modeling; adsorption chillers; CFB boilers; oxy-fuel combustion; CLC; CaL; biomass; machine learning; artificial neural networks; fuzzy logic; genetic algorithms
Special Issues, Collections and Topics in MDPI journals
Dr. Zhongnong Zhang

E-Mail Website
Guest Editor Assistant
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: thermodynamic analysis; combustion; radiative heat transfer; heat conduction; gas measurement
Dr. Dorian Skrobek

E-Mail Website
Guest Editor Assistant
Faculty of Science and Technology, Jan Dlugosz University in Czestochowa, 13/15 Armii Krajowej Av., 42-200 Czestochowa, Poland
Interests: finite element analysis; design engineering; cad; modeling and simulation; finite element modeling; optimization; stress analysis; engineering, applied and computational mathematics; engineering drawing; mechanical processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite submissions to this Special Issue, entitled “Thermodynamic Evaluation and Optimization of Combustion Processes”.

Combustion is an important way for humans to obtain energy. However, the combustion process of some fuels, especially fossil fuels, produces a large amount of greenhouse gases and pollutants. To reduce the environmental impact of combustion, it is important to develop efficient combustion methods and systems by using the thermodynamics second-law analysis. Different from the traditional analytical approach that uses the energy conservation principle, the second-law analysis can obtain more important information. The analysis method includes the evaluation of thermodynamic irreversibility and the efficiency of various flames, as well as the thermodynamic optimization of combustion processes by adjusting the combustion mode, flame structure, and burner structure. Some novel and improved combustion systems have been developed based on the thermodynamics second-law. From this perspective, we are committed to facilitating communication regarding high-quality studies in this field.

Topics include, but are not limited to:

  • The thermodynamic evaluation of various combustion processes.
  • Novel and improved combustion methods and systems.
  • The development of algorithms and theories.
  • New ideas for optimization methods.

Prof. Dr. Chun Lou
Prof. Dr. Jaroslaw Krzywanski
Guest Editors

Dr. Zhongnong Zhang
Dr. Dorian Skrobek
Guest Editor Assistants

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. Entropy 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 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.

Published Papers (1 paper)

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Research

21 pages, 3041 KiB  
Article
Microgravity Spherical Droplet Evaporation and Entropy Effects
by Seyedamirhossein Madani and Christopher Depcik
Entropy 2023, 25(8), 1232; https://doi.org/10.3390/e25081232 - 18 Aug 2023
Viewed by 1024
Abstract
Recent efforts to understand low-temperature combustion (LTC) in internal combustion engines highlight the need to improve chemical kinetic mechanisms involved in the negative temperature coefficient (aka cool flame) regime. Interestingly, microgravity droplet combustion experiments demonstrate this cool flame behavior, allowing a greater focus [...] Read more.
Recent efforts to understand low-temperature combustion (LTC) in internal combustion engines highlight the need to improve chemical kinetic mechanisms involved in the negative temperature coefficient (aka cool flame) regime. Interestingly, microgravity droplet combustion experiments demonstrate this cool flame behavior, allowing a greater focus on chemistry after buoyancy, and the corresponding influence of the conservation of momentum is removed. In Experimental terms, the LTC regime is often characterized by a reduction in heat transfer losses. Novel findings in this area demonstrate that lower entropy generation, in conjunction with diminished heat transfer losses, could more definitively define the LTC regime. As a result, the simulation of the entropy equation for spherical droplet combustion under microgravity could help us to investigate fundamental LTC chemical kinetic pathways. To provide a starting point for researchers who are new to this field, this effort first provides a comprehensive and detailed derivation of the conservation of entropy equation using spherical coordinates and gathers all relevant information under one cohesive framework, which is a resource not readily available in the literature. Subsequently, the well-known d2 law analytical model is determined and compared to experimental data that highlight shortcomings of the law. The potential improvements in the d2 law are then discussed, and a numerical model is presented that includes entropy. The resulting codes are available in an online repository to ensure that other researchers interested in expanding this field of work have a fundamental starting point. Full article
(This article belongs to the Special Issue Thermodynamic Evaluation and Optimization of Combustion Processes)
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