Abstract
A two-phase flow, multi-component model has been optimized for a PEM (Proton Exchange Membrane) Fuel Cell. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered in channels. Typical two-phase flow distributions in the cathode gas channel, gas diffuser and catalyst layer are presented. Source term and porosity term were optimized. Based on the simulation results, it is found that two-phase flow characteristics in the cathode depend on the current density, operating temperature, and cathode and anode humidification temperatures. Water mass fraction for the fuel cell with anode upward is higher than that the case with cathode-upward. Liquid water with the case of cathode-upward blocks pores in the gas diffuser layer leading to increasing the concentration polarization. Gravity of liquid water exerts the effect on the water mass fraction in the cathode.
| Original language | English |
|---|---|
| Title of host publication | Advanced Materials Research |
| Pages | 691-694 |
| Number of pages | 4 |
| Volume | 105-106 |
| Edition | 1 |
| DOIs | |
| State | Published - Jul 7 2010 |
| Event | 6th China International Conference on High-Performance Ceramics, CICC-6 - Harbin, China Duration: Aug 16 2009 → Aug 19 2009 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Number | 1 |
| Volume | 105-106 |
| ISSN (Print) | 10226680 |
Other
| Other | 6th China International Conference on High-Performance Ceramics, CICC-6 |
|---|---|
| Country | China |
| City | Harbin |
| Period | 8/16/09 → 8/19/09 |
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Keywords
- Fuel cell
- PEM
- Two-phase flow
- Water management
ASJC Scopus subject areas
- Engineering(all)
Cite this
An improved two-phase flow and transport model for the PEM fuel cell. / Chen, Shizhong; Wu, Yuhou; Sun, Hong; Liu, Hongtan.
Advanced Materials Research. Vol. 105-106 1. ed. 2010. p. 691-694 (Advanced Materials Research; Vol. 105-106, No. 1).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - An improved two-phase flow and transport model for the PEM fuel cell
AU - Chen, Shizhong
AU - Wu, Yuhou
AU - Sun, Hong
AU - Liu, Hongtan
PY - 2010/7/7
Y1 - 2010/7/7
N2 - A two-phase flow, multi-component model has been optimized for a PEM (Proton Exchange Membrane) Fuel Cell. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered in channels. Typical two-phase flow distributions in the cathode gas channel, gas diffuser and catalyst layer are presented. Source term and porosity term were optimized. Based on the simulation results, it is found that two-phase flow characteristics in the cathode depend on the current density, operating temperature, and cathode and anode humidification temperatures. Water mass fraction for the fuel cell with anode upward is higher than that the case with cathode-upward. Liquid water with the case of cathode-upward blocks pores in the gas diffuser layer leading to increasing the concentration polarization. Gravity of liquid water exerts the effect on the water mass fraction in the cathode.
AB - A two-phase flow, multi-component model has been optimized for a PEM (Proton Exchange Membrane) Fuel Cell. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered in channels. Typical two-phase flow distributions in the cathode gas channel, gas diffuser and catalyst layer are presented. Source term and porosity term were optimized. Based on the simulation results, it is found that two-phase flow characteristics in the cathode depend on the current density, operating temperature, and cathode and anode humidification temperatures. Water mass fraction for the fuel cell with anode upward is higher than that the case with cathode-upward. Liquid water with the case of cathode-upward blocks pores in the gas diffuser layer leading to increasing the concentration polarization. Gravity of liquid water exerts the effect on the water mass fraction in the cathode.
KW - Fuel cell
KW - PEM
KW - Two-phase flow
KW - Water management
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U2 - 10.4028/www.scientific.net/AMR.105-106.691
DO - 10.4028/www.scientific.net/AMR.105-106.691
M3 - Conference contribution
SN - 0878492755
SN - 9780878492756
VL - 105-106
T3 - Advanced Materials Research
SP - 691
EP - 694
BT - Advanced Materials Research
ER -