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- W4385777745 abstract "As one of the critical components of fuel cell systems, the air compressor plays a key role in the system efficiency and overall performance of fuel cells. In order to improve the performance of the fuel cell air compressor (FCAC), the multi-parameter optimization was conducted at part load based on the computational fluid dynamics (CFD) analysis. Firstly, the bench test for a centrifugal air compressor was conducted and the comprehensive performance was obtained. Then, the CFD model for the FCAC was built and calibrated by tested data. On this basis, the numerical analysis and structural optimization of the FCAC were performed, and the influence mechanisms of structure parameters on the flow and thermodynamic processes of air compressor were clarified. The results illustrate that, the blade tail, volute tongue and the longitudinal section of the volute for the original FCAC require further optimization. The performance of the FCAC is improved by the synergistic optimization of four structural parameters, which are the outlet mounting angle of the blade tail, volute tongue angle, volute inlet radius and diffuser inlet diameter. Compared with the original FCAC, the pressure ratio and isentropic efficiency of the optimized FCAC are increased by 1.72% and 5.70%, respectively. The findings can provide theoretical basis, directional guidance and data support for the numerical analysis and performance optimization of the FCAC." @default.
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- W4385777745 date "2023-09-01" @default.
- W4385777745 modified "2023-10-17" @default.
- W4385777745 title "Multi-parameter optimization for the performance of the fuel cell air compressor based on computational fluid dynamics analysis at part load" @default.
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- W4385777745 doi "https://doi.org/10.1016/j.tsep.2023.102057" @default.
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