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Applied Sciences
Special Issues
Design and Application of Bionic Aircraft and Biofuels
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Design and Application of Bionic Aircraft and Biofuels

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Aerospace Science and Engineering".

Deadline for manuscript submissions: 10 September 2024 | Viewed by 862

Special Issue Editors

Dr. Ziyu Liu

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Guest Editor
School of Aeronautic Science and Engineering/School of Engineering Medicine, Beihang University, Beijing 100191, China
Interests: biofuels; aircraft design; bionic engineering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiaoyi Yang

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Energy and Environment International Center, Beihang University, Beijing 100191, China
Interests: biofuels; fluid mechanics; pyrolysis; HTL
Prof. Dr. Xiangsheng Gao

E-Mail Website
Guest Editor
Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China
Interests: biofuels; bionic design; finite element analysis

Special Issue Information

Dear Colleagues,

With the increasing emphasis on sustainability and environmental consciousness, the aerospace industry is undergoing a transformative shift towards the development of bionic aircraft, aerospace vehicles, and biofuels. Bionic design draws inspiration from biological systems to enhance aerodynamic efficiency, reduce fuel consumption, and improve overall performance. Concurrently, biofuels derived from renewable sources offer promising alternatives to traditional aviation fuels, contributing to carbon emission reduction and mitigating environmental impacts. Thus, a broader range of investigations to promote the development of aerospace engineering is of particular interest.

This Special Issue on the “Design and Application of Bionic Aircraft and Biofuels” aims to discuss bionic aircraft, biofuels, aerospace vehicles, combustion, and emissions. Original research papers, communications, and reviews concerning bionic design and biofuels are welcomed and invited for inclusion in this Special Issue. 

Dr. Ziyu Liu
Prof. Dr. Xiaoyi Yang
Prof. Dr. Xiangsheng Gao
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. Applied Sciences 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 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

  • bionic aircraft
  • biofuels
  • aerospace vehicles
  • bionic robotics
  • sustainable aviation
  • combustion and emissions
  • aerospace engineering
  • renewable energy
  • environmental impact assessment
  • life cycle assessment
  • flight dynamics

Published Papers (1 paper)

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Review

27 pages, 2214 KiB  
Review
Comparison of Emission Properties of Sustainable Aviation Fuels and Conventional Aviation Fuels: A Review
by Zehua Song, Zekai Li and Ziyu Liu
Appl. Sci. 2024, 14(13), 5484; https://doi.org/10.3390/app14135484 - 24 Jun 2024
Viewed by 535
Abstract
In order to achieve the International Air Transport Association’s (IATA) goal of achieving net-zero emissions in the aviation industry by 2050, there has been a growing emphasis globally on the technological development and practical application of sustainable aviation fuels (SAFs). Discrepancies in feedstock [...] Read more.
In order to achieve the International Air Transport Association’s (IATA) goal of achieving net-zero emissions in the aviation industry by 2050, there has been a growing emphasis globally on the technological development and practical application of sustainable aviation fuels (SAFs). Discrepancies in feedstock and production processes result in differences in composition between SAFs and traditional aviation fuels, ultimately affecting the emission performance of the two types of fuel. This paper discusses the impact of CO2/NOx/SO2/CO/PM/UHC emissions from the aviation industry on the natural environment and human health by comparing the two types of fuel under the same conditions. Fuel combustion is a complex process in the combustor of an engine, which transfers chemical energy into heat energy. The completeness of combustion is related to the fuel properties, including spray, evaporation, and flammability. Therefore, engine performance is not only affected by fuel performance, but also interacts with engine structure and control laws. The CO2 emissions of SAFs differ significantly from traditional aviation fuels from a lifecycle analysis perspective, and most SAFs can reduce CO2 emissions by 41–89%. Compared with traditional aviation fuels, SAFs and blended fuels can significantly reduce SO2 and PM emissions. Pure Fischer–Tropsch hydroprocessed synthesized paraffinic kerosine (FT-SPK) can reduce SO2 and PM emissions by 92% and 70–95% respectively, owing to its extremely low sulfur and aromatic compound content. In contrast, the differences in NOx emissions between the two types of fuel are not significant, as their generation mechanisms largely stem from thermal drive and turbulent flow in the combustor, with emissions performance being correlated to power output and flame temperature profile in engine testing. CO and UHC emissions are related to engine operating conditions and the physical/chemical properties of the SAFs, with no significant upward or downward trend. Therefore, SAFs have significant advantages over conventional aviation fuels in terms of CO2, SO2, and PM emissions, and can effectively reduce the hazards of aviation to the environment and human health. Full article
(This article belongs to the Special Issue Design and Application of Bionic Aircraft and Biofuels)
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