Flooding visualization and enhanced water management in PEM fuel cell

Hyung Hee Cho, Sanghoon Lee, Dong Ho Rhee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Internal water management in proton exchange membrane (PEM) fuel cell has been considered as one of most significant key factors for its performance enhancement. It is because relative humidity of hydrogen and air is strongly related to the performance of PEM fuel cell in terms of H+ movement within the membrane. In addition, production of H2O by chemical reactions can bring several problems during concentration loss region since combination of vapor in supplying air and byproduct of chemical reaction should lead to excess H2O remaining in PEM fuel cell, resulting flooding phenomena which may block air flow channels. Therefore, in order to understand and manage such phenomena to enhance the performance of PEM fuel cell, especially under concentration loss region, this paper focuses on the visualization of the flooding phenomena and application of the modified flow path on the cathode separator for flooding reduction.

Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009
Pages1223-1230
Number of pages8
EditionPART B
DOIs
Publication statusPublished - 2009 Dec 1
Event7th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2009 - Pohang, Korea, Republic of
Duration: 2009 Jun 222009 Jun 24

Publication series

NameProceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009
NumberPART B

Other

Other7th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2009
CountryKorea, Republic of
CityPohang
Period09/6/2209/6/24

Fingerprint

Water management
Proton exchange membrane fuel cells (PEMFC)
Visualization
Chemical reactions
Air
Channel flow
Separators
Byproducts
Hydrogen
Atmospheric humidity
Cathodes
Vapors
Membranes

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Cho, H. H., Lee, S., & Rhee, D. H. (2009). Flooding visualization and enhanced water management in PEM fuel cell. In Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009 (PART B ed., pp. 1223-1230). (Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009; No. PART B). https://doi.org/10.1115/ICNMM2009-82129
Cho, Hyung Hee ; Lee, Sanghoon ; Rhee, Dong Ho. / Flooding visualization and enhanced water management in PEM fuel cell. Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009. PART B. ed. 2009. pp. 1223-1230 (Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009; PART B).
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abstract = "Internal water management in proton exchange membrane (PEM) fuel cell has been considered as one of most significant key factors for its performance enhancement. It is because relative humidity of hydrogen and air is strongly related to the performance of PEM fuel cell in terms of H+ movement within the membrane. In addition, production of H2O by chemical reactions can bring several problems during concentration loss region since combination of vapor in supplying air and byproduct of chemical reaction should lead to excess H2O remaining in PEM fuel cell, resulting flooding phenomena which may block air flow channels. Therefore, in order to understand and manage such phenomena to enhance the performance of PEM fuel cell, especially under concentration loss region, this paper focuses on the visualization of the flooding phenomena and application of the modified flow path on the cathode separator for flooding reduction.",
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Cho, HH, Lee, S & Rhee, DH 2009, Flooding visualization and enhanced water management in PEM fuel cell. in Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009. PART B edn, Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009, no. PART B, pp. 1223-1230, 7th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2009, Pohang, Korea, Republic of, 09/6/22. https://doi.org/10.1115/ICNMM2009-82129

Flooding visualization and enhanced water management in PEM fuel cell. / Cho, Hyung Hee; Lee, Sanghoon; Rhee, Dong Ho.

Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009. PART B. ed. 2009. p. 1223-1230 (Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009; No. PART B).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Internal water management in proton exchange membrane (PEM) fuel cell has been considered as one of most significant key factors for its performance enhancement. It is because relative humidity of hydrogen and air is strongly related to the performance of PEM fuel cell in terms of H+ movement within the membrane. In addition, production of H2O by chemical reactions can bring several problems during concentration loss region since combination of vapor in supplying air and byproduct of chemical reaction should lead to excess H2O remaining in PEM fuel cell, resulting flooding phenomena which may block air flow channels. Therefore, in order to understand and manage such phenomena to enhance the performance of PEM fuel cell, especially under concentration loss region, this paper focuses on the visualization of the flooding phenomena and application of the modified flow path on the cathode separator for flooding reduction.

AB - Internal water management in proton exchange membrane (PEM) fuel cell has been considered as one of most significant key factors for its performance enhancement. It is because relative humidity of hydrogen and air is strongly related to the performance of PEM fuel cell in terms of H+ movement within the membrane. In addition, production of H2O by chemical reactions can bring several problems during concentration loss region since combination of vapor in supplying air and byproduct of chemical reaction should lead to excess H2O remaining in PEM fuel cell, resulting flooding phenomena which may block air flow channels. Therefore, in order to understand and manage such phenomena to enhance the performance of PEM fuel cell, especially under concentration loss region, this paper focuses on the visualization of the flooding phenomena and application of the modified flow path on the cathode separator for flooding reduction.

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Cho HH, Lee S, Rhee DH. Flooding visualization and enhanced water management in PEM fuel cell. In Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009. PART B ed. 2009. p. 1223-1230. (Proceedings of the 7th International Conference on Nanochannels, Microchannels, and Minichannels 2009, ICNMM2009; PART B). https://doi.org/10.1115/ICNMM2009-82129