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State-of-Art in Biomass and Biofuels Combustion
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State-of-Art in Biomass and Biofuels Combustion

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: 10 June 2024 | Viewed by 1378

Special Issue Editors

Dr. Lei Deng

E-Mail Website
Guest Editor
State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: thermal conversion and utilization of biomass; combustion of fossil fuels and pollutant emission control; design of novel boiler and heat exchanger; coupling of machine learning and boiler performance calculation; numerical simulation of combustion, heat transfer, and flow; comprehensive utilization of low-grade heat energy
Dr. Ningbo Gao

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: solid waste treatment and recycling; biomass/coal gasification and pyrolysis; oil recycling from oily sludge; hydrogen production with tar catalysis reforming; municipal solid waste to fuel; sewage sludge treatment and recycling; drying technology of high moisture materials; microbial technology for solid waste treatment
Special Issues, Collections and Topics in MDPI journals
Dr. Yang Guo

E-Mail Website
Guest Editor
Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: efficient development and utilization technology for biomass energy; new hydrogen energy preparation technology; comprehensive utilization of energy and resources based on sub/supercritical fluids; CO2 catalytic reduction conversion; chemical reaction kinetics and catalysis theory in energy conversion process
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Under the rising depletion of fossil fuels and the increasingly serious situation of CO2 emission, it has become a trend to utilize renewable energy to gradually substitute fossil energy. Among various renewable energy sources, biomass is becoming increasingly popular due to its advantages, such as carbon neutrality. Biomass is a unique renewable energy resource that can be converted into liquid fuel (biofuels) through various technological methods. Biomass and biofuel are mainly applied through thermal conversion, in which combustion is the most important way. New technologies need to be developed to effectively improve the combustion efficiency of biomass and biofuel and give full play to their potential. Therefore, it is necessary to study the combustion characteristics of biomass and biofuel. In addition, considering potential problems (ash and slagging, corrosion, etc.) in the combustion of biomass and other fuels could alleviate these problems. Meanwhile, it could also co-dispose wastes, such as sludge, through co-combustion. Each aspect of these processes is worthy of careful investigation. Pollutant control and environmental protection are key issues that need to be paid attention to in the process of combustion.

We invite you to publish an article or a long review paper in the Special Issue " State-of-Art in Biomass and Biofuels Combustion".

This Special Issue aims to introduce the latest progress in experimental and numerical research, theory, and design related to biomass and biofuel combustion technology. In addition, attention will be paid to pollutant control and environmental protection issues related to biomass and biofuel combustion.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Advanced processes for biomass and biofuel combustion;
  • Biomass combustion experiment and numerical simulation;
  • Optimization of biomass co-combustion process;
  • Co-disposal of sludge and biomass;
  • Pollutant control and environmental protection assessment;
  • Life cycle assessment.

Dr. Lei Deng
Dr. Ningbo Gao
Dr. Yang Guo
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

  • biomass
  • biofuel
  • combustion characteristics
  • thermal conversion
  • sludge disposal
  • co-combustion
  • pollutant control
  • environmental protection

Published Papers (2 papers)

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Research

15 pages, 9696 KiB  
Article
Numerical Study on Effect of Flue Gas Recirculation and Co-Firing with Biomass on Combustion Characteristics in Octagonal Tangentially Lignite-Fired Boiler
by Jiajun Du, Jiahui Yang, Yonggang Zhao, Qianxin Guo, Yaodong Da and Defu Che
Energies 2024, 17(2), 475; https://doi.org/10.3390/en17020475 - 18 Jan 2024
Viewed by 593
Abstract
The octagonal tangentially fired boiler can be utilized for burning lignite with high moisture. Co-firing biomass in an octagonal tangential boiler is considered a promising approach. A numerical simulation is carried out in this study to analyze the impact of flue gas recirculation [...] Read more.
The octagonal tangentially fired boiler can be utilized for burning lignite with high moisture. Co-firing biomass in an octagonal tangential boiler is considered a promising approach. A numerical simulation is carried out in this study to analyze the impact of flue gas recirculation (FGR) and the biomass blending ratio on heat and mass transfer in an octagonal tangentially fired boiler. When the FGR rate increases from 0 to 30%, the maximum temperature in the boiler decreases from 2162.8 to 2106.5 K. Simultaneously, the average temperature of the center longitudinal section decreases from 1589.0 to 1531.9 K. The maximum fluctuation of the outlet flue gas temperature remains within 10.9 K for the four calculated working conditions. Consequently, the efficiency of the boiler is basically unchanged. However, the flue gas temperature at the furnace outlet decreases significantly from 1605.9 to 1491.9 K. When the biomass blending ratio increases from 0 to 20%, the mean temperature of the primary combustion zone decreases from 1600.5 to 1571.2 K. Full article
(This article belongs to the Special Issue State-of-Art in Biomass and Biofuels Combustion)
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17 pages, 8821 KiB  
Article
Computational Particle Fluid Dynamics Simulation on Combustion Characteristics of Blended Fuels of Coal, Biomass, and Oil Sludge in a 130 t h−1 Circulating Fluidized Bed Boiler
by Yang Wang, Xiangyu Chen, Liping Xu, Mingwei Ma, Xiaole Huang, Feng Han, Yong Zhou, Chen Du, Yaodong Da and Lei Deng
Energies 2024, 17(1), 149; https://doi.org/10.3390/en17010149 - 27 Dec 2023
Viewed by 589
Abstract
In this study, the co-combustion of coal and biomass, and the tri-combustion of coal, biomass, and oil sludge in a 130 t h−1 circulating fluidized bed (CFB) boiler are investigated via the computational particle fluid dynamics (CPFD) approach. Furthermore, the effect of [...] Read more.
In this study, the co-combustion of coal and biomass, and the tri-combustion of coal, biomass, and oil sludge in a 130 t h−1 circulating fluidized bed (CFB) boiler are investigated via the computational particle fluid dynamics (CPFD) approach. Furthermore, the effect of biomass feeding position is also comprehensively evaluated. The results show that for the co-combustion of coal and biomass, the O2 mole fraction at the furnace outlet rises from 0.0541 to 0.0640 as the biomass blending ratio enhances from 40% to 100%, while the CO2 mole fraction reduces from 0.1357 to 0.1267. The mole fraction of NOx and SO2 at the furnace outlet decreases from 4.5867 × 10−5 to 3.9096 × 10−5 and 2.8253 × 10−4 to 4.6635 × 10−5, respectively. For the tri-combustion of three fuels, the average NOx mole fraction initially grows quickly and then declines gradually, ranging from 4.1173 × 10−5 to 4.2556 × 10−5. The mole fraction of SO2 at the furnace outlet increases from 3.5176 × 10−4 to 4.7043 × 10−4 when the ratio of oil sludge rises from 10% to 20%. The uniformity of temperature and gas components distribution is “new inlet > secondary air inlet > feed inlet”. As for the three inlet positions, the mole fractions of NOx at the furnace outlet are between 3.9096 × 10−5 and 5.1537 × 10−5, while those for SO2 are between 2.5978 × 10−4 and 2.5278 × 10−4. Full article
(This article belongs to the Special Issue State-of-Art in Biomass and Biofuels Combustion)
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