Simulation of different channel depths in the cathode of the PEM fuel cell

Shizhong Chen, Yuhou Wu, Lihua Luan, Zhengnan Jin, Hongtan Liu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In order to understand the transfer and distribution of water in proton exchange membrane (PEM) fuel cell, we optimized a two-dimensional, two-hase and multi-omponent model and modeled the flow and transport in the combined gas channel and porous gas diffuser in the PEM fuel cell. The gravity effects on liquid water in channels were considered as well. The simulation results showed that different channel depths (0.5 mm, 0.75 mm, 1.0 mm and 1.5 mm) can affect distribution of water at anode-upward. Changes was analyzed in water mass fraction. In the channel, the change in water mass fraction along the channel is more than that along the depth of fuel cell, while the case is opposite in the catalyst layer, and the changes in water mass fraction occur along both two directions in the gas diffuse layer. Water mass fraction in cathode of fuel cell decreases with the increase of the channel depth: the deeper is the channel depth, the easier is the discharge of water.

Original languageEnglish
Pages (from-to)1205-1208
Number of pages4
JournalShenyang Jianzhu Daxue Xuebao (Ziran Kexue Ban)/Journal of Shenyang Jianzhu University (Natural Science)
Volume26
Issue number6
StatePublished - Nov 1 2010

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fuel cell
membrane
water mass
simulation
gas
water
catalyst
gravity
liquid

Keywords

  • Fuel cell
  • PEM
  • Two-uhase flow
  • Water management

ASJC Scopus subject areas

  • General

Cite this

Simulation of different channel depths in the cathode of the PEM fuel cell. / Chen, Shizhong; Wu, Yuhou; Luan, Lihua; Jin, Zhengnan; Liu, Hongtan.

In: Shenyang Jianzhu Daxue Xuebao (Ziran Kexue Ban)/Journal of Shenyang Jianzhu University (Natural Science), Vol. 26, No. 6, 01.11.2010, p. 1205-1208.

Research output: Contribution to journalArticle

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AU - Wu, Yuhou

AU - Luan, Lihua

AU - Jin, Zhengnan

AU - Liu, Hongtan

PY - 2010/11/1

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N2 - In order to understand the transfer and distribution of water in proton exchange membrane (PEM) fuel cell, we optimized a two-dimensional, two-hase and multi-omponent model and modeled the flow and transport in the combined gas channel and porous gas diffuser in the PEM fuel cell. The gravity effects on liquid water in channels were considered as well. The simulation results showed that different channel depths (0.5 mm, 0.75 mm, 1.0 mm and 1.5 mm) can affect distribution of water at anode-upward. Changes was analyzed in water mass fraction. In the channel, the change in water mass fraction along the channel is more than that along the depth of fuel cell, while the case is opposite in the catalyst layer, and the changes in water mass fraction occur along both two directions in the gas diffuse layer. Water mass fraction in cathode of fuel cell decreases with the increase of the channel depth: the deeper is the channel depth, the easier is the discharge of water.

AB - In order to understand the transfer and distribution of water in proton exchange membrane (PEM) fuel cell, we optimized a two-dimensional, two-hase and multi-omponent model and modeled the flow and transport in the combined gas channel and porous gas diffuser in the PEM fuel cell. The gravity effects on liquid water in channels were considered as well. The simulation results showed that different channel depths (0.5 mm, 0.75 mm, 1.0 mm and 1.5 mm) can affect distribution of water at anode-upward. Changes was analyzed in water mass fraction. In the channel, the change in water mass fraction along the channel is more than that along the depth of fuel cell, while the case is opposite in the catalyst layer, and the changes in water mass fraction occur along both two directions in the gas diffuse layer. Water mass fraction in cathode of fuel cell decreases with the increase of the channel depth: the deeper is the channel depth, the easier is the discharge of water.

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