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.
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