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Fire
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Jet Fuel Combustion
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Jet Fuel Combustion

A special issue of Fire (ISSN 2571-6255).

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1738

Special Issue Editor

Dr. Wei-Cheng Wang

E-Mail Website
Guest Editor
Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 70101, Taiwan
Interests: combustion study of jet fuel; combustion pollution control; fuel production process development; high-efficiency low-emission jet engine development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Jet fuel, also known as aviation turbine fuel (ATF) or avtur, is a complex mixture of hydrocarbon compounds derived from crude oil and natural gas, including paraffin, cycloparaffins or naphthenes, aromatics, and olefins extracted from crude oil and natural gas. The combustion process of the jet is highly efficient and emits fewer emissions than standard automotive engines. However, in 2022, aviation accounted for 2% of global energy-related CO2 emissions, having grown faster than rail, road, or shipping in recent decades. As a result, it is critical to understand their combustion properties in order to evaluate the performance of jet fuels and, ultimately, to achieve clean combustion and reduce emissions.

The goal of this Special Issue is to demonstrate the combustion characteristics of jet fuels; new combustor design and development for improved engine performance; mitigating carbon emissions from gas turbine engines; diagnostic techniques for a better understanding of the combustion process; and alternative jet fuels.

Topics of interest for publication include, but are not limited to:

  • Chemical kinetic models for jet fuels;
  • Ignition, extinction, and flame propagation of jet fuels;
  • Combustion efficiency and exhaust emissions;
  • Evaporation, combustion, and atomization of jet fuel droplets;
  • Spray combustion characteristics and optical diagnostics;
  • Engine performance with regard to ignition, altitude relight, and blowout limits.

Dr. Wei-Cheng Wang
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 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. Fire 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 2400 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

  • chemical kinetic models for jet fuels
  • ignition, extinction, and flame propagation of jet fuels
  • combustion efficiency and exhaust emissions
  • evaporation, combustion, and atomization of jet fuel droplets
  • spray combustion characteristics and optical diagnostics
  • engine performance with regard to ignition, altitude relight, and blowout limits

Published Papers (2 papers)

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Research

18 pages, 4518 KiB  
Article
Experimental Evaluation of Methanol/Jet-A Blends as Sustainable Aviation Fuels for Turbo-Engines: Performance and Environmental Impact Analysis
by Grigore Cican, Radu Mirea and Gimi Rimbu
Fire 2024, 7(5), 155; https://doi.org/10.3390/fire7050155 - 26 Apr 2024
Viewed by 338
Abstract
This study offers a comprehensive examination, both theoretically and experimentally, of the potential of methanol (M) as a sustainable aviation fuel (SAF) assessed in combination with kerosene (Ke—Jet-A aviation fuel + 5% Aeroshell oil). Different blends of methanol and kerosene (10%, 20%, and [...] Read more.
This study offers a comprehensive examination, both theoretically and experimentally, of the potential of methanol (M) as a sustainable aviation fuel (SAF) assessed in combination with kerosene (Ke—Jet-A aviation fuel + 5% Aeroshell oil). Different blends of methanol and kerosene (10%, 20%, and 30% vol. of (M) was added to Ke) were tested in an aviation micro turbo-engine under various operating regimes, such as idle, cruise, and maximum. Key engine parameters, including combustion temperature, fuel consumption, and thrust, were closely monitored during these trials. Essential performance indicators such as combustion efficiency, thermal efficiency, and specific consumption for all fuel blends under maximum operating conditions are also presented. Physical and chemical characteristics, such as viscosity, density, calorific value and flash point, were determined for each blend. Moreover, elemental analysis and FTIR spectroscopy were utilized to evaluate the chemical composition of the fuels. This study further investigated the air requirements for stoichiometric combustion and computed the resulting CO2 and H2O emissions. Experimental tests were conducted on the Jet Cat P80® micro turbo-engine, covering assessments of starting procedures, acceleration, deceleration, and pollutant emissions (CO and SO2) during various engine operating conditions. The results suggest that the examined fuel blends demonstrate stable engine performance at concentrations of 10% and 20% methanol. However, observations indicate that with an increase in methanol concentration, particularly at 30%, the stability of the engine at idle and, notably, at maximum speed decreases significantly. Specifically, at a 30% methanol concentration, the engine no longer operates stably, exhibiting significant rpm fluctuations, leading to the decision not to explore higher concentrations. Full article
(This article belongs to the Special Issue Jet Fuel Combustion)
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23 pages, 17803 KiB  
Article
Numerical Study of the Effect of Primary Nozzle Geometry on Supersonic Gas-Solid Jet of Bypass Injected Dry Powder Fire Extinguishing Device
by Lite Zhang, Yang Feng, Sifan Wu and Huixia Jia
Fire 2024, 7(2), 45; https://doi.org/10.3390/fire7020045 - 31 Jan 2024
Viewed by 1164
Abstract
A two-way coupled model between polydisperse particle phases with compressible gases and a density-based coupling implicit solution method, combining the third-order MUSCL with QUICK spatial discretization scheme and the second-order temporal discretization scheme, are constructed based on the discrete-phase model (DPM) and the [...] Read more.
A two-way coupled model between polydisperse particle phases with compressible gases and a density-based coupling implicit solution method, combining the third-order MUSCL with QUICK spatial discretization scheme and the second-order temporal discretization scheme, are constructed based on the discrete-phase model (DPM) and the stochastic wander model (DRWM) in the Eulerian–Lagrangian framework in conjunction with a unitary particulate source (PSIC) approach and the SST k-ω turbulence model. The accuracy of the numerical prediction method is verified using previous supersonic nozzle gas-solid two-phase flow experiments. Numerical simulation of a two-phase jet of dry powder extinguishing agent gas with pilot-type supersonic nozzle was performed to analyze the influence of geometrical parameters, such as the length ratio rL and the area ratio rA of the main nozzle on the two-phase flow field, as well as on the jet performance indexes, such as the particle mean velocity vp,a, velocity inhomogeneity Φvp, particle dispersion Ψp, particle mean acceleration ap,a, etc. By analyzing the parameters, we indicate the requirements for the combination of jet performance metrics for different flame types such as penetrating, spreading, and dispersing. Full article
(This article belongs to the Special Issue Jet Fuel Combustion)
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