OPTIMIZATION METHOD OF FUEL CELL TWO-STAGE AIR COMPRESSOR BASED ON EXERGY ANALYSIS

Sun Xiuxiu; Meng Qi; Sun Tengteng; Xu Hongjing; Zhang Qian; Zhang Zhongyuan

doi:10.19912/j.0254-0096.tynxb.2024-1340

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 136-141. DOI: 10.19912/j.0254-0096.tynxb.2024-1340

OPTIMIZATION METHOD OF FUEL CELL TWO-STAGE AIR COMPRESSOR BASED ON EXERGY ANALYSIS

Sun Xiuxiu^1,2, Meng Qi^1,2, Sun Tengteng³, Xu Hongjing^1,2, Zhang Qian^1,2, Zhang Zhongyuan^1,2

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Abstract

To improve the aerodynamic performance of two-stage air compressors, a CFD model was developed and then verified via the experiments carried out on a fuel cell air compressor test bench. Based on this model, the distribution and magnitude of exergy loss for each componentwere derived. The results indicates that the exergy loss at the high-pressure end is 58.06 J higher than the low-pressure end. The exergy loss of impeller accounts for 54% of the total exergy loss at the high-pressure end. The loss factor analysis reveals that irreversible loss due to turbulence is the primary contribution.

Key words

fuel cells / centrifugal compressors / exergy / high and low pressure level / impeller / turbulence / numerical simulation

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Sun Xiuxiu, Meng Qi, Sun Tengteng, Xu Hongjing, Zhang Qian, Zhang Zhongyuan. OPTIMIZATION METHOD OF FUEL CELL TWO-STAGE AIR COMPRESSOR BASED ON EXERGY ANALYSIS[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 136-141 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1340

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