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Experimental validation of two-phase pressure drop multiplier as a diagnostic tool for characterizing PEM fuel cell performance.

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Title: Experimental validation of two-phase pressure drop multiplier as a diagnostic tool for characterizing PEM fuel cell performance.
Authors: Banerjee, Rupak1,2 rxb5214@rit.edu, Howe, Danielle1 djh2852@rit.edu, Mejia, Valentina1 vxm5074@rit.edu, Kandlikar, Satish G.1,2 sgkeme@rit.edu
Source: International Journal of Hydrogen Energy. Oct2014, Vol. 39 Issue 31, p17791-17801. 11p.
Subjects: Proton exchange membrane fuel cells, Pressure drop (Fluid dynamics), Dehydration reactions, Current density (Electromagnetism), Two-phase flow, Performance evaluation, Electric potential
Abstract: Water management is a key area of interest in improving the performance of Proton Exchange Membrane fuel cells. Cell flooding and membrane dehydration are two extreme conditions arising from poor water management. Pressure drop has been recognized as a good diagnostic tool to determine the presence of liquid water in the reactant channels. Presence of liquid water in the channels increases the mass transport resistances and therefore reduces the cell performance, which is quantified by the cell voltage at a set current density. Since the two-phase pressure drop multiplier is uniquely related to the water content in the channel, it serves as a good diagnostic tool for directly predicting the cell performance. Experiments are carried out to establish the relationship between the pressure drop multiplier and cell voltage at different operating conditions. Cell temperature was varied from 30 °C to 80 °C and the inlet RH was varied from 0 to 95%. At the lower temperatures, a two-phase multiplier below 1.5 reduces flooding in the flow field. However, at the higher temperatures, a two-phase flow multiplier above 1.2 is preferred as it indicates the membrane remains hydrated for improved performance from the cell. The two-phase pressure drop multiplier has been successfully demonstrated as a diagnostic tool to predict cell flooding and membrane dehydration. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 98847294
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Experimental validation of two-phase pressure drop multiplier as a diagnostic tool for characterizing PEM fuel cell performance.
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  Data: <searchLink fieldCode="AR" term="%22Banerjee%2C+Rupak%22">Banerjee, Rupak</searchLink><relatesTo>1,2</relatesTo><i> rxb5214@rit.edu</i><br /><searchLink fieldCode="AR" term="%22Howe%2C+Danielle%22">Howe, Danielle</searchLink><relatesTo>1</relatesTo><i> djh2852@rit.edu</i><br /><searchLink fieldCode="AR" term="%22Mejia%2C+Valentina%22">Mejia, Valentina</searchLink><relatesTo>1</relatesTo><i> vxm5074@rit.edu</i><br /><searchLink fieldCode="AR" term="%22Kandlikar%2C+Satish+G%2E%22">Kandlikar, Satish G.</searchLink><relatesTo>1,2</relatesTo><i> sgkeme@rit.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Oct2014, Vol. 39 Issue 31, p17791-17801. 11p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Proton+exchange+membrane+fuel+cells%22">Proton exchange membrane fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure+drop+%28Fluid+dynamics%29%22">Pressure drop (Fluid dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Dehydration+reactions%22">Dehydration reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink><br /><searchLink fieldCode="DE" term="%22Two-phase+flow%22">Two-phase flow</searchLink><br /><searchLink fieldCode="DE" term="%22Performance+evaluation%22">Performance evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+potential%22">Electric potential</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Water management is a key area of interest in improving the performance of Proton Exchange Membrane fuel cells. Cell flooding and membrane dehydration are two extreme conditions arising from poor water management. Pressure drop has been recognized as a good diagnostic tool to determine the presence of liquid water in the reactant channels. Presence of liquid water in the channels increases the mass transport resistances and therefore reduces the cell performance, which is quantified by the cell voltage at a set current density. Since the two-phase pressure drop multiplier is uniquely related to the water content in the channel, it serves as a good diagnostic tool for directly predicting the cell performance. Experiments are carried out to establish the relationship between the pressure drop multiplier and cell voltage at different operating conditions. Cell temperature was varied from 30 °C to 80 °C and the inlet RH was varied from 0 to 95%. At the lower temperatures, a two-phase multiplier below 1.5 reduces flooding in the flow field. However, at the higher temperatures, a two-phase flow multiplier above 1.2 is preferred as it indicates the membrane remains hydrated for improved performance from the cell. The two-phase pressure drop multiplier has been successfully demonstrated as a diagnostic tool to predict cell flooding and membrane dehydration. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ijhydene.2014.08.118
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 17791
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      – SubjectFull: Proton exchange membrane fuel cells
        Type: general
      – SubjectFull: Pressure drop (Fluid dynamics)
        Type: general
      – SubjectFull: Dehydration reactions
        Type: general
      – SubjectFull: Current density (Electromagnetism)
        Type: general
      – SubjectFull: Two-phase flow
        Type: general
      – SubjectFull: Performance evaluation
        Type: general
      – SubjectFull: Electric potential
        Type: general
    Titles:
      – TitleFull: Experimental validation of two-phase pressure drop multiplier as a diagnostic tool for characterizing PEM fuel cell performance.
        Type: main
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            NameFull: Banerjee, Rupak
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            NameFull: Howe, Danielle
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            NameFull: Mejia, Valentina
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            NameFull: Kandlikar, Satish G.
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              Text: Oct2014
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              Y: 2014
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