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Processes
Special Issues
New Controlled Combustion Processes with Gaseous and Liquid Fuels
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New Controlled Combustion Processes with Gaseous and Liquid Fuels

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 1900

Special Issue Editor

Dr. Yong He

E-Mail Website
Guest Editor
College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
Interests: gaseous fuel combustion; liquid fuel combustion; laser combustion diagnostics

Special Issue Information

Dear Colleagues,

Gas and liquid fuels are widely used in power equipment such as gas turbines, boilers, aircraft engines, and automotive engines. In order to achieve efficient and clean combustion of gaseous and liquid fuels in such equipment, an in-depth understanding of the fundamental combustion characteristics of fuels (such as ignition delay time, laminar flame speed, flame temperature, NOx generation, soot generation, puffing behavior of liquid fuel, etc.) and the reaction kinetic mechanism is crucial and useful for the development of advanced combustion and control technology. As interest in the environment has been increasing, strong pressure is being placed on conventional power generation systems to reduce their emissions. For example, in recent decades, many emission-reduction methods applicable for gas-turbine combustors have been suggested, such as the quick-quench-lean-burn technique, catalytic combustion, and the lean burn technique. In the development of ultra-lean gas turbine combustion, combustion instability and flame flashback are among the greatest challenges. In these cases, plasma-assisted combustion is a promising technology to improve gas turbine/engine performance, increase lean burn flame stability, reduce emissions, and enhance low temperature fuel oxidation and processing.

This Special Issue on “New Controlled Combustion Processes with Gaseous and Liquid Fuels” aims to organize novel advances in understanding and controlling combustion in gaseous and liquid fuels to address the challenge of the energy and combustion field. Topics include, but are not limited to:

  • Combustion characteristics and control of gaseous and liquid fuels;
  • Kinetics and combustion modeling of gaseous and liquid fuels;
  • Advanced combustion diagnostics with in situ measurement techniques;
  • New advanced combustion technology of gaseous and liquid fuels;
  • Emission control in the combustion of gaseous and liquid fuels.

Dr. Yong He
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 papers will be 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. Processes 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 2000 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

  • gaseous fuel combustion
  • liquid fuel combustion
  • ignition delay time
  • laminar flame speed
  • NOx generation and control
  • soot generation and control
  • puffing behavior of liquid fuel
  • plasma-assisted combustion
  • laser combustion diagnostics

Published Papers (1 paper)

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Research

14 pages, 9024 KiB  
Article
Vaporization, Diffusion and Combustion of Laser-Induced Individual Magnesium Microparticles in Inert and Oxidizing Atmospheres
by Fan Yang, Shengji Li, Xunjie Lin, Jiankan Zhang, Heping Li, Xuefeng Huang and Jiangrong Xu
Processes 2021, 9(11), 2057; https://doi.org/10.3390/pr9112057 - 17 Nov 2021
Cited by 3 | Viewed by 1330
Abstract
Although the gas phase combustion of metallic magnesium (Mg) has been extensively studied, the vaporization and diffusive combustion behaviors of Mg have not been well characterized. This paper proposes an investigation of the vaporization, diffusion, and combustion characteristics of individual Mg microparticles in [...] Read more.
Although the gas phase combustion of metallic magnesium (Mg) has been extensively studied, the vaporization and diffusive combustion behaviors of Mg have not been well characterized. This paper proposes an investigation of the vaporization, diffusion, and combustion characteristics of individual Mg microparticles in inert and oxidizing gases by a self-built experimental setup based on laser-induced heating and microscopic high-speed cinematography. Characteristic parameters like vaporization and diffusion coefficients, diffusion ratios, flame propagation rates, etc., were obtained at high spatiotemporal resolutions (μm and tens of μs), and their differences in inert gases (argon, nitrogen) and in oxidizing gases (air, pure oxygen) were comparatively analyzed. More importantly, for the core–shell structure, during vaporization, a shock wave effect on the cracking of the porous magnesium oxide thin film shell-covered Mg core was first experimentally revealed in inert gases. In air, the combustion flame stood over the Mg microparticles, and the heterogeneous combustion reaction was controlled by the diffusion rate of oxygen in air. While in pure O2, the vapor-phase stand-off flame surrounded the Mg microparticles, and the reaction was dominated by the diffusion rate of Mg vapor. The diffusion coefficients of the Mg vapor in oxidizing gases are 1~2 orders of magnitude higher than those in inert gases. However, the diffusive ratios of condensed combustion residues in oxidizing gases are ~1/2 of those in inert gases. The morphology and the constituent contents analysis showed that argon would not dissolve into liquid Mg, while nitrogen would significantly dissolve into liquid Mg. In oxidizing gases of air or pure O2, Mg microparticles in normal pressure completely burned due to laser-induced heating. Full article
(This article belongs to the Special Issue New Controlled Combustion Processes with Gaseous and Liquid Fuels)
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