Employing Hot Wire Anemometry to Directly Measure the Water Balance of a Commercial Proton Exchange Membrane Fuel Cell Stack

Saher Al Shakhshir, Torsten Berning

Research output: Contribution to journalConference article in JournalResearchpeer-review

1 Citation (Scopus)

Abstract

Proton exchange membrane fuel cells (PEMFC’s) are currently being commercialized for various applications ranging from automotive (e.g. the Toyota Mirai) to stationary such as powering telecom backup units. In PEMFC’s, oxygen from air is internally combined with hydrogen to form water and produce electricity and waste heat. One critical technical problem of these fuel cells is still the water management: the proton exchange membrane in the center of these fuel cells has to be hydrated in order to stay proton-conductive while on the other hand excessive liquid water can lead to cell flooding and increased degradation rates. Clearly, a fundamental understanding of all aspects of water management in PEMFC is imperative. This includes the fuel cell water balance, i.e. which fraction of the product water leaves the fuel cell via the anode channels versus the cathode channel. Our research group is currently developing a novel technique to obtain an ad-hoc and real time electrical signal of the fuel cell water balance by employing hot wire anemometry. In this work, the hot wire sensor is placed in the anode outlet of a commercial air-cooled fuel cell stack by Ballard Power Systems, and the voltage signal received gives valuable insight into heat and mass transfer phenomena in a PEMFC.
Original languageEnglish
Book seriesS A E Technical Papers
Volume5
Issue number1
Pages (from-to)183-188
Number of pages6
ISSN0148-7191
DOIs
Publication statusPublished - Apr 2016
EventSAE 2016 World Congress and Exhibition - Detroit, Michigan, United States
Duration: 12 Apr 201614 Apr 2016
https://www.sae.org/congress/

Conference

ConferenceSAE 2016 World Congress and Exhibition
CountryUnited States
CityDetroit, Michigan
Period12/04/201614/04/2016
Internet address

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
Fuel cells
Wire
Water
Water management
Anodes
Protons
Waste heat
Air
Ion exchange
Cathodes
Mass transfer
Electricity
Heat transfer
Membranes
Degradation
Hydrogen
Oxygen
Sensors
Liquids

Bibliographical note

Also in: SAE International Journal of Alternative Powertrains - V125-8, SAE International Journal of Alternative Powertrains - V125-8EJ
Volume 5, issue 1

Keywords

  • Air cooled stack
  • Proton exchange membrane fuel cell
  • Water balance
  • Calibration curve
  • Hot wire anemometry

Cite this

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title = "Employing Hot Wire Anemometry to Directly Measure the Water Balance of a Commercial Proton Exchange Membrane Fuel Cell Stack",
abstract = "Proton exchange membrane fuel cells (PEMFC’s) are currently being commercialized for various applications ranging from automotive (e.g. the Toyota Mirai) to stationary such as powering telecom backup units. In PEMFC’s, oxygen from air is internally combined with hydrogen to form water and produce electricity and waste heat. One critical technical problem of these fuel cells is still the water management: the proton exchange membrane in the center of these fuel cells has to be hydrated in order to stay proton-conductive while on the other hand excessive liquid water can lead to cell flooding and increased degradation rates. Clearly, a fundamental understanding of all aspects of water management in PEMFC is imperative. This includes the fuel cell water balance, i.e. which fraction of the product water leaves the fuel cell via the anode channels versus the cathode channel. Our research group is currently developing a novel technique to obtain an ad-hoc and real time electrical signal of the fuel cell water balance by employing hot wire anemometry. In this work, the hot wire sensor is placed in the anode outlet of a commercial air-cooled fuel cell stack by Ballard Power Systems, and the voltage signal received gives valuable insight into heat and mass transfer phenomena in a PEMFC.",
keywords = "Air cooled stack , Proton exchange membrane fuel cell, Water balance, Calibration curve, Hot wire anemometry",
author = "Shakhshir, {Saher Al} and Torsten Berning",
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}

Employing Hot Wire Anemometry to Directly Measure the Water Balance of a Commercial Proton Exchange Membrane Fuel Cell Stack. / Shakhshir, Saher Al; Berning, Torsten.

In: S A E Technical Papers, Vol. 5, No. 1, 04.2016, p. 183-188.

Research output: Contribution to journalConference article in JournalResearchpeer-review

TY - GEN

T1 - Employing Hot Wire Anemometry to Directly Measure the Water Balance of a Commercial Proton Exchange Membrane Fuel Cell Stack

AU - Shakhshir, Saher Al

AU - Berning, Torsten

N1 - Also in: SAE International Journal of Alternative Powertrains - V125-8, SAE International Journal of Alternative Powertrains - V125-8EJ Volume 5, issue 1

PY - 2016/4

Y1 - 2016/4

N2 - Proton exchange membrane fuel cells (PEMFC’s) are currently being commercialized for various applications ranging from automotive (e.g. the Toyota Mirai) to stationary such as powering telecom backup units. In PEMFC’s, oxygen from air is internally combined with hydrogen to form water and produce electricity and waste heat. One critical technical problem of these fuel cells is still the water management: the proton exchange membrane in the center of these fuel cells has to be hydrated in order to stay proton-conductive while on the other hand excessive liquid water can lead to cell flooding and increased degradation rates. Clearly, a fundamental understanding of all aspects of water management in PEMFC is imperative. This includes the fuel cell water balance, i.e. which fraction of the product water leaves the fuel cell via the anode channels versus the cathode channel. Our research group is currently developing a novel technique to obtain an ad-hoc and real time electrical signal of the fuel cell water balance by employing hot wire anemometry. In this work, the hot wire sensor is placed in the anode outlet of a commercial air-cooled fuel cell stack by Ballard Power Systems, and the voltage signal received gives valuable insight into heat and mass transfer phenomena in a PEMFC.

AB - Proton exchange membrane fuel cells (PEMFC’s) are currently being commercialized for various applications ranging from automotive (e.g. the Toyota Mirai) to stationary such as powering telecom backup units. In PEMFC’s, oxygen from air is internally combined with hydrogen to form water and produce electricity and waste heat. One critical technical problem of these fuel cells is still the water management: the proton exchange membrane in the center of these fuel cells has to be hydrated in order to stay proton-conductive while on the other hand excessive liquid water can lead to cell flooding and increased degradation rates. Clearly, a fundamental understanding of all aspects of water management in PEMFC is imperative. This includes the fuel cell water balance, i.e. which fraction of the product water leaves the fuel cell via the anode channels versus the cathode channel. Our research group is currently developing a novel technique to obtain an ad-hoc and real time electrical signal of the fuel cell water balance by employing hot wire anemometry. In this work, the hot wire sensor is placed in the anode outlet of a commercial air-cooled fuel cell stack by Ballard Power Systems, and the voltage signal received gives valuable insight into heat and mass transfer phenomena in a PEMFC.

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