Carbon Neutrality and Symmetry in Power Engineering and Engineering Thermophysics, 2nd Edition

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Engineering and Materials".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1802

Special Issue Editors


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Guest Editor
School of Energy and Power Engineering, Beihang University, 37 Xueyuan Road, Beijing 100191, China
Interests: engineering thermophysics; environmental science and engineering
Special Issues, Collections and Topics in MDPI journals
School of Aerospace, Hangzhou Innovation Institute, Beihang University, Hangzhou 310023, China
Interests: aerospace engine; engineering thermophysics
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Aerospace, Hangzhou Innovation Institute, Beihang University, Hangzhou 310023, China
Interests: combustion; engineering thermophysics
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Guest Editor
School of Engineering, Macquarie University, Macquarie Park, NSW 2109, Australia
Interests: computational fluid dynamics (CFD); multiphase flows; combustion modelling
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Aerospace, Hangzhou Innovation Institute, Beihang University, Hangzhou 310023, China
Interests: aerospace engine; engineering thermophysics; environmental science and structural strength assessment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Carbon neutrality and symmetry in power engineering and engineering thermophysics is a hot research topic receiving much attention, and it is rather significant in the development of power systems such as aero-engines and internal combustion engines. In response to global climate change, “carbon peak” and “carbon neutral” have become popular keywords. As one of the main contributors of carbon emissions, power systems are confronted with great challenges in terms of their energy conservation and emissions reduction. For example, improving power system efficiency and developing green alternative fuels are essential ways to reduce carbon emissions. In addition, the symmetrical design of power system structures has important influences on carbon neutrality, as do symmetry or asymmetric fluid properties and lightweight structure, with numerous studies exploring these topics in an attempt to address many novel questions. Given the strict requirements of carbon emission, a breakthrough is needed in the low-carbon technologies of power systems. Therefore, discussing and summarizing the latest outstanding research on carbon neutrality and symmetry in power engineering and engineering thermophysics is of great significance.

The main goal of this Special Issue is to present a collection of manuscripts focused on the frontier research and future challenges of carbon neutrality and symmetry in power engineering and engineering thermophysics. Relevant topics include, but are not limited to:

  • Carbon neutrality and sustainable alternative fuels
  • Aero-engine carbon neutrality and symmetry
  • Carbon neutral technologies for internal combustion engines
  • Combustion carbon neutral and symmetry
  • Multiphase flow carbon neutral and symmetry
  • Carbon neutral and symmetry in heat and mass transfer
  • Airworthiness carbon neutrality and symmetry
  • Particle measurement and characterization in carbon neutrality and symmetry
  • Interdisciplinary issues in carbon neutrality and symmetry

Prof. Dr. Longfei Chen
Dr. Zheng Xu
Dr. Guangze Li
Dr. Fatemeh Salehi
Dr. Bin Zhang
Guest Editors

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Keywords

  • carbon neutrality
  • power engineering
  • engineering thermophysics

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Published Papers (1 paper)

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Research

20 pages, 13965 KiB  
Article
Dual-Loop μ-Synthesis Direct Thrust Control for Turbofan Engines
by Yifu Long, Xi Wang, Wenshuai Zhao and Jiashuai Liu
Symmetry 2024, 16(8), 944; https://doi.org/10.3390/sym16080944 - 24 Jul 2024
Cited by 2 | Viewed by 1435
Abstract
As the power unit of an aircraft, the engine’s primary task is to provide the demanded thrust, making research on direct thrust control crucial. However, being a complicated multivariable system, effective multivariable direct thrust control methods are currently lacking. The main content of [...] Read more.
As the power unit of an aircraft, the engine’s primary task is to provide the demanded thrust, making research on direct thrust control crucial. However, being a complicated multivariable system, effective multivariable direct thrust control methods are currently lacking. The main content of this paper is threefold. First, it presents a dual-loop multivariable μ-synthesis direct thrust control scheme for mixed-exhaust low-bypass turbofan engines, which is a typical rotationally symmetric machine. The scheme adjusts fuel flow for thrust control and nozzle area to control the turbine pressure ratio, ensuring thrust tracking while maintaining the engine’s key parameters within safe limits. Second, a fast, accurate thrust estimation algorithm based on aerodynamic thermodynamics and component characteristics is introduced. At last, considering the model uncertainties between off-design and design points, a weight function frequency shaping μ-synthesis control design method is proposed to address internal loop coupling and external disturbance suppression. Nonlinear simulations within the flight envelope show that μ-synthesis direct thrust control achieves robust servo tracking and disturbance rejection, with a maximum steady-state thrust error of no more than 0.1%, and the key parameters are not over their safety boundaries. Full article
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