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November 1, 2025SAE technical papers on CD-ROM/SAE technical paper series

Thermodynamic Exergy Analysis of PEMFC Systems for System Efficiency and Waste Heat Recovery

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Authors

TSTomesh Kumar SahuABAnnasaheb Bansode

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Overview

Thermodynamic modeling improves fuel cell efficiency and optimizes waste heat recovery in PEMFC systems, indicating system design importance.

Key Points

  • Exergy analysis reveals that improving waste heat recovery can enhance system efficiency by 1%.
  • Increasing current density from 1 to 1.5 A/cm² drops overall system efficiency from 57% to 49% due to exergy losses.
  • Thermodynamic modeling analyzed air stoichiometry and ambient temperature effects on fuel cell performance and efficiency.
  • Sufficient optimization of auxiliary components like heat exchangers is critical for maximizing efficiency.

Cite This Study

Sahu et al. (2025) studied this question.

synapsesocial.com/papers/69054ffa1a99e50463de67b3https://doi.org/10.4271/2025-28-0352
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