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Optimization on conventional and electric air-cycle refrigeration systems of aircraft: A short-cut method and analysis

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Chinese Journal of Aeronautics 2020年第7期33卷 1877-1888页

作者： Hongsheng JIANG Sujun DONG Hainan ZHANG Fengming AI Zhiwei ZHANG Jun WANG School of Aeronautic Science and Engineering Beihang UniversityBeijing 100083China Key Laboratory of Cryogenics Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Shenyang aircraft Design and Research Institute Shenyang 110013China

The air-cycle refrigeration system is widely used in commercial and military aircraft,and its efficiency greatly affects aircraft ***,this system requires a more efficient design and optimization *** this paper,a short-cut optimization method with high efficiency and effectiveness is introduced for both conventional and electric air-cycle refrigeration *** on the system characteristics,a four-layer parameter matching algorithm is designed which avoids computational difficulty caused by simultaneous *** penalty is chosen as the objective function of optimization;design variables are reduced based on sensitivity analysis to improve optimization *** results show that the 3-variable optimization of the conventional air-cycle refrigeration system can obtain almost the same results as the traditional 6-variable optimization in that these two optimizations can both significantly reduce the fuel ***,the computer running time of the 3-variable optimization is much shorter than that of the 6-variable *** optimal fuel penalty of the electric air-cycle refrigeration system is lower than that of the conventional *** study can provide reference for optimizing the aircycle refrigeration system of aircraft.

关键词： aircraft air-cycle refrigeration Electric air-cycle refrigeration Parameter matching Sensitivity analysis

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