An Engine-Level Safety Assessment Approach of Sustainable Aviation Fuel Based on a Multi-Fidelity Aerodynamic Model

被引:0
作者
Ding, Shuiting [1 ,2 ]
Ma, Qinglin [3 ]
Qiu, Tian [1 ]
Gan, Chenyu [3 ]
Wang, Xinming [1 ]
机构
[1] Beihang Univ, Res Inst Aeroengine, Beijing 100191, Peoples R China
[2] Civil Aviat Univ China, Tianjin 300300, Peoples R China
[3] Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China
关键词
sustainable aviation fuel; safety; aero-engine; multi-fidelity; model-based assessment; BIOFUELS; PERFORMANCE;
D O I
10.3390/su16093814
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Safety is essential for sustainable aviation fuels (SAFs). However, evaluating SAFs' impacts on aero-engine safety is challenging because it involves multiple space scales and the strongly coupled relationships of aero-engine components. Aiming at addressing this problem, a model-based approach is proposed to establish the relationship between the fuel-level physical properties and engine-level safety parameters. Firstly, a unified modeling criterion is proposed to consider the interrelations of aero-engine components. Under this criterion, aero-engine secondary air system (SAS) components are included in SAF safety assessment, since they have non-neglectable influences on aero-engine safety. Secondly, this paper proposes a surrogate-based iteration strategy to embed the combustor's high-dimensional computational fluid dynamics (CFD) model into the aero-engine flow network model. Then, the proposed model-based safety assessment approach is applied to a Fischer-Tropsch hydro-processed synthesized paraffinic kerosine (F-T SPK) safety assessment case. The effects of fuel flow and blending ratio are considered. The results indicate the necessity to evaluate SAFs' safety at the aero-engine level and consider the influences of SAS components. The proposed model-based approach may provide a preliminary screening before SAFs' certification tests. This convenience may be beneficial for reducing the cost and accelerating SAFs' application.
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页数:15
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