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June 1, 2026International Communications in Heat and Mass TransferOpen Access

A novel approach for performance analysis of planar membrane humidifiers with different flow configurations: A case study for fuel cell applications

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Authors

YWYannick WieseBSBahman ShabaniWCWalter T. Czarnetzki

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Overview

Experimental evaluation of flow configurations reveals counter-flow outperforms others in water transfer rates.

Key Points

  • This work aims to evaluate the performance of planar membrane humidifiers in fuel cell applications under different flow configurations.
  • Experimental evaluation of water transfer rates in counter-flow, co-flow, and cross-flow configurations.
  • Comparison of performance across different test cell sizes (64, 84, 103, 148, 167, 251 mm).
  • Utilization of a heat exchanger analogy to assess membrane surface area dependence.
  • Counter-flow configuration resulted in 5.7% to 23.3% higher water transfer rates than co-flow in larger test cells.
  • Cross-flow achieved 2.4% to 13.6% less water transfer compared to counter-flow in individual test cells.
  • No significant difference was observed between counter-flow and co-flow configurations.

Cite This Study

Wiese et al. (2026) studied this question.

synapsesocial.com/papers/6a1d216202fbce913063769chttps://doi.org/10.1016/j.icheatmasstransfer.2026.111604
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