E-Mail Alert

Add your e-mail address to receive forthcoming issues of this journal:

Journal Browser

Journal Browser

Special Issue "Cleaner Combustion"

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

Deadline for manuscript submissions: 28 February 2019

Special Issue Editors

Guest Editor
Prof. Dr. Derek Dunn-Rankin

Mechanical and Aerospace Engineering Department, University of California, Irvine, CA 92697, USA
Website | E-Mail
Interests: combustion; sprays; particle transport; non-intrusive optical diagnostics
Guest Editor
Dr. Yu-Chien Chien

Mechanical and Aerospace Engineering Department, University of California, Irvine, CA 92697, USA
Website | E-Mail
Interests: combustion; flames; energy systems; emissions

Special Issue Information

Dear Colleagues,

The Special Issue in Energies on “Cleaner Combustion” focuses on how the combination of fuel treatment, effective energy extraction, and emission mitigation in combustion can be optimized to reduce the environmental impact that threatens living systems because humans rely heavily on energy for basic necessities and economic development. We refer to “cleaner combustion” as an explicit acknowledgment that any improvements in this critical technology can have a significant global impact because of the ubiquitous nature of combustion. A growing population and growing standards of living have produced explosive growth in energy demand, and the environmental upset has started feeding back. This Special Issue includes a spectrum of research on cleaner combustion that helps balance our needs for energy with cognizant respect for the environment.

The goal of this collection is to identify the challenges and improvements of existing energy generation strategies in combustion, as well as reaching various pathways that resolve combustion emissions. The topics range from combustion and flame research that directly or indirectly impact the optimization of combustion processes using conventional carbon-based or hydrocarbon fuels, to options leading to a cleaner combustion outcome by using alternative fuels, biofuels, or low carbon fuels, or including new methods to process exhausted gases.

Prof. Dr. Derek Dunn-Rankin
Dr. Yu-Chien Chien
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 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. Energies 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 1600 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

  • cleaner combustion
  • low NOx
  • low carbon fuel
  • biofuel
  • alternative fuel
  • exhaust gas cleanup
  • emission control
  • MILD combustion
  • highly preheated combustion
  • oxy-fuel
  • chemical looping

Published Papers (2 papers)

View options order results:
result details:
Displaying articles 1-2
Export citation of selected articles as:

Research

Open AccessArticle Combustion Characteristics and NOx Emission through a Swirling Burner with Adjustable Flaring Angle
Energies 2018, 11(8), 2173; https://doi.org/10.3390/en11082173
Received: 1 July 2018 / Revised: 13 August 2018 / Accepted: 18 August 2018 / Published: 20 August 2018
PDF Full-text (2692 KB) | HTML Full-text | XML Full-text
Abstract
A swirling burner with a variable inner secondary air (ISA) flaring angle β is proposed and a laboratory scale opposed-firing furnace is built. Temperature distribution and NOx emission are designedly measured. The combustion characteristics affected by variable β are experimentally evaluated from
[...] Read more.
A swirling burner with a variable inner secondary air (ISA) flaring angle β is proposed and a laboratory scale opposed-firing furnace is built. Temperature distribution and NOx emission are designedly measured. The combustion characteristics affected by variable β are experimentally evaluated from ignition and burnout data. Meanwhile, NOx reduction by the variable β is analyzed through emissions measurements. Different inner/outer primary coal-air concentration ratios γ, thermal loads and coal types are considered in this study. Results indicate that β variation provides a new approach to promote ignition and burnout, as well as NOx emission reduction under conditions of fuel rich/lean combustion and load variation. The recommended β of a swirling burner under different conditions is not always constant. The optimal βopt of the swirling burner under all conditions for different burning performance are summarized in the form of curves, which could provide reference for exquisite combustion adjustment. Full article
(This article belongs to the Special Issue Cleaner Combustion)
Figures

Graphical abstract

Open AccessArticle Numerical Investigation of the Effects of Steam Mole Fraction and the Inlet Velocity of Reforming Reactants on an Industrial-Scale Steam Methane Reformer
Energies 2018, 11(8), 2082; https://doi.org/10.3390/en11082082
Received: 1 July 2018 / Revised: 3 August 2018 / Accepted: 8 August 2018 / Published: 10 August 2018
PDF Full-text (4156 KB) | HTML Full-text | XML Full-text
Abstract
Steam methane reforming (SMR) is the most common commercial method of industrial hydrogen production. Control of the catalyst tube temperature is a fundamental demand of the reformer design because the tube temperature must be maintained within a range that the catalysts have high
[...] Read more.
Steam methane reforming (SMR) is the most common commercial method of industrial hydrogen production. Control of the catalyst tube temperature is a fundamental demand of the reformer design because the tube temperature must be maintained within a range that the catalysts have high activity and the tube has minor damage. In this paper, the transport and chemical reaction in an industrial-scale steam methane reformer are simulated using computational fluid dynamics (CFD). Two factors influencing the reformer temperature, hydrogen yield and stress distribution are discussed: (1) the mole fraction of steam (YH2O) and (2) the inlet velocity of the reforming reactants. The purpose of this paper is to get a better understanding of the flow and thermal development in a reformer and thus, to make it possible to improve the performance and lifetime of a steam reformer. It is found that the lowest temperature at the reforming tube surface occurs when YH2O is 0.5. Hydrogen yield has the highest value when YH2O is 0.5. The wall shear stress at the reforming tube surface is higher at a higher YH2O. The surface temperature of a reforming tube increases with the inlet velocity of the reforming reactants. Finally, the wall shear stress at the reforming tube surface increases with the inlet velocity of the reforming reactants. Full article
(This article belongs to the Special Issue Cleaner Combustion)
Figures

Figure 1a

Back to Top