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Energies
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Heat Conversion and Emission Characteristics in Fuel Combustion Processes
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Heat Conversion and Emission Characteristics in Fuel Combustion Processes

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B2: Clean Energy".

Deadline for manuscript submissions: closed (20 November 2022) | Viewed by 18576

Special Issue Editors

Prof. Dr. Donghoon Shin

E-Mail Website
Guest Editor
Department of Mechanical Engineering, School of Mechanical Engineering, Kookmin University, Seoul 02707, Republic of Korea
Interests: renewable energy; smart city; heat transfer; combustion
Special Issues, Collections and Topics in MDPI journals
Dr. Hossein Ali Yousefi Rizi

E-Mail Website
Guest Editor
Department of Mechanical Engineering, School of Mechanical and Automotive Engineering, Kookmin University, Seoul 136-702, Republic of Korea
Interests: safety risks; health effects
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, developing dedicated innovative systems, relevant, papers are devoted to, performances, efficiency.

Indeed, in recent years, research has been very active in working to improve each electric subsystem, easy installation, and maintenance. It is necessary to continue on this path in order to obtain significant technological advances.

The Guest Editor is inviting submissions to a Special Issue of Energies, papers are devoted to, on the subject area of “Heat Conversion and Emission Characteristics in Fuel Combustion Processes”. It is necessary to improve to achieve advantages in terms of system performances, robustness, optimization of fuel combustion, conversion of new fuels, and emission control techniques are important for the efficient use of energy systems with regards to climate change mitigation and environmental pollution control. Recently, there have been many advancements in techniques related to heat conversion and energy supply. Moreover, the development of dedicated innovative systems for controlling Heat Conversion and Fuel Combustion such as the Internet of things (IoT) and Artificial Intelligence (AI) are also considered.

This Special Issue is in order to obtain significant technological advances in the Heat Conversion and Emission Characteristics in Fuel Combustion Processes.

The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “the Heat Conversion and Emission Characteristics in Fuel Combustion Processes”. Optimization of fuel combustion, conversion of new fuels, and emission control techniques are important for the efficient use of energy systems with regard to climate change mitigation and environmental pollution control. There have been many emerging techniques for new energy supply, in recent years. Moreover, the Internet of things (IoT) and Artificial Intelligence (AI) are also considered from the view of Heat Conversion and Fuel Combustion.

This Special Issue will deal with novel optimization and control techniques for the Heat Conversion and Emission Characteristics in Fuel Combustion Processes. It covers several topics for publication mainly on the followings, but are not limited to:

  • heat conversion
  • heat conversion and emission characteristics in fuel combustion processes
  • heat and mass transfer, thermodynamics
  • fuel combustion, conversion processes and their products
    • synthesis method and catalysts
  • monitoring and control systems
    • optimization of fuel combustion processes
    • application of the internet of things and artificial intelligence in design control systems
  • fuels sources
    • new and clean energy, the ammonia, the hydrogen
    • biogas, bio methanol, biochar and syngas
    • performance of fuels applications
  • optimization of combustors and their operations
  • sustainability and climate change
    • carbon emission and utilization, environmental hazards
    • health and safety risk management system
    • energy economics and policy
  • control methods of exhaust emissions of fuel combustion processes
  • environmental issues and health hazards, safety risk management 

Prof. Dr. Donghoon Shin
Dr. Hossein Ali Yousefi Rizi
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

  • heat conversion technology and emission characteristics
  • fuel pyrolysis, gasification, incineration, combustion processes and optimization techniques
  • synthesis method and catalysts and catalyst effect
  • ammonia
  • hydrogen
  • biogas, bio-methanol, biochar, syngas
  • exhaust emissions of fuel, environmental issues, health hazards, safety risk

Related Special Issue

Published Papers (3 papers)

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Research

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15 pages, 7188 KiB  
Article
A Comparative Study of NOx Emission Characteristics in a Fuel Staging and Air Staging Combustor Fueled with Partially Cracked Ammonia
by Namsu Kim, Minjung Lee, Juwon Park, Jeongje Park and Taesong Lee
Energies 2022, 15(24), 9617; https://doi.org/10.3390/en15249617 - 19 Dec 2022
Cited by 3 | Viewed by 1752
Abstract
Recently, ammonia is emerging as a potential source of energy in power generation and industrial sectors. One of the main concerns with ammonia combustion is the large amount of NO emission. Air staging is a conventional method of reducing NO emission which is [...] Read more.
Recently, ammonia is emerging as a potential source of energy in power generation and industrial sectors. One of the main concerns with ammonia combustion is the large amount of NO emission. Air staging is a conventional method of reducing NO emission which is similar to the Rich-Burn, Quick-Mix, Lean-Burn (RQL) concept. In air-staged combustion, a major reduction of NO emission is based on the near zero NO emission at fuel-rich combustion of NH3/Air mixture. A secondary air stream is injected for the oxidation of unburned hydrogen and NHx. On the other hand, in fuel-staged combustion, NO emission is reduced by splitting NH3 injection, which promotes the thermal DeNOx process. In this study, NOx emission characteristics of air-staged and fuel-staged combustion of partially cracked ammonia mixture are numerically investigated. First, the combustion system is modeled by a chemical reactor network of a perfectly stirred reactor and plug flow reactor with a detailed chemistry mechanism. Then, the effects of ammonia cracking, residence time, and staging scheme on NOx emission are numerically analyzed. Finally, the limitations and optimal conditions of each staging scheme are discussed. Full article
(This article belongs to the Special Issue Heat Conversion and Emission Characteristics in Fuel Combustion Processes)
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18 pages, 3502 KiB  
Article
Numerical Evaluation of Biochar Production Performance of Downdraft Gasifier by Thermodynamic Model
by Donghoon Shin, Akhil Francis, Purushothaman Vellayani Aravind, Theo Woudstra, Wiebren de Jong and Dirk Roekaerts
Energies 2022, 15(20), 7650; https://doi.org/10.3390/en15207650 - 17 Oct 2022
Cited by 1 | Viewed by 1311
Abstract
A theoretical evaluation of the biochar production process using a biomass gasifier has been carried out herein. Being distinguished from the previous research trend examining the use of a biomass gasifier, which has been focused on energy efficiency, the present study tries to [...] Read more.
A theoretical evaluation of the biochar production process using a biomass gasifier has been carried out herein. Being distinguished from the previous research trend examining the use of a biomass gasifier, which has been focused on energy efficiency, the present study tries to figure out the effect of biochar production rate on the overall process performance because biochar itself has now been given a spotlight as the main product. Biochar can be utilized for agricultural and industrial purposes, along with the benefit of climate change mitigation. A thermodynamic model based on chemical equilibrium analysis is utilized to demonstrate the effect of biochar production rate on the producer gas characteristics such as gas composition, LHV (lower heating value) and cold gas efficiency. Three gasifier models using chemical equilibrium model are reconstructed to simulate biochar-producing gasifiers, and seven kinds of biomass are considered as feed material. Depending on the assumptions applied to the models as well as the biomass types, the results of the simulation show a large variance, whereas the biochar yield rate increases. Through regression analysis with a generalized reduced gradient optimization method, simplified equations to estimate the cold gas efficiency (CGE) and LHV of producer gas of the biochar production process were derived as having six parameters of biomass LHV, fractions of ash, carbon and water, reduction zone temperature, and biochar yield rate. The correlation factors between the thermodynamic model and the regression model are 96.54% and 98.73% for the LHV of producer gas and CGE, respectively. These equations can supply the pre-estimation of the theoretical maximum performance of a planning biochar plant. Full article
(This article belongs to the Special Issue Heat Conversion and Emission Characteristics in Fuel Combustion Processes)
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Review

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49 pages, 16676 KiB  
Review
Green Hydrogen Production Technologies from Ammonia Cracking
by Hossein Ali Yousefi Rizi and Donghoon Shin
Energies 2022, 15(21), 8246; https://doi.org/10.3390/en15218246 - 4 Nov 2022
Cited by 23 | Viewed by 15036
Abstract
The rising technology of green hydrogen supply systems is expected to be on the horizon. Hydrogen is a clean and renewable energy source with the highest energy content by weight among the fuels and contains about six times more energy than ammonia. Meanwhile, [...] Read more.
The rising technology of green hydrogen supply systems is expected to be on the horizon. Hydrogen is a clean and renewable energy source with the highest energy content by weight among the fuels and contains about six times more energy than ammonia. Meanwhile, ammonia is the most popular substance as a green hydrogen carrier because it does not carry carbon, and the total hydrogen content of ammonia is higher than other fuels and is thus suitable to convert to hydrogen. There are several pathways for hydrogen production. The considered aspects herein include hydrogen production technologies, pathways based on the raw material and energy sources, and different scales. Hydrogen can be produced from ammonia through several technologies, such as electrochemical, photocatalytic and thermochemical processes, that can be used at production plants and fueling stations, taking into consideration the conversion efficiency, reactors, catalysts and their related economics. The commercial process is conducted by using expensive Ru catalysts in the ammonia converting process but is considered to be replaced by other materials such as Ni, Co, La, and other perovskite catalysts, which have high commercial potential with equivalent activity for extracting hydrogen from ammonia. For successful engraftment of ammonia to hydrogen technology into industry, integration with green technologies and economic methods, as well as safety aspects, should be carried out. Full article
(This article belongs to the Special Issue Heat Conversion and Emission Characteristics in Fuel Combustion Processes)
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