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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   FEBRUARY 2017 , Volume 16 , Number 11 ; Page(s) 357 To 368.
 
Paper: 

THREE DIMENSIONAL ANALYSIS OF ADDING A HYDROPHOBIC POROUS LAYER ON WATER SATURATION AT THE CATHODE OF A PEM FUEL CELL

 
 
Author(s):  MAHNAMA SEYED MEHDI, KHAYAT MORTEZA*
 
* DEPARTMENT OF MECHANICAL AND AEROSPACE ENGINEERING, SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In this paper, the effect of adding a hydrophobic micro porous layer (MPL) at the cathode side of a PEM fuel cell on the cell performance is investigated. For this purpose, a three dimensional two-phase nonisothermal simulation of cathode side layers of a PEM fuel cell which includes gas channel, gas diffusion layer (GDL), hydrophobic micro porous layer (MPL) and catalyst layer (CL) has been performed. The governing equations of fluid flow in the fuel cell are solved with a multiphase mixture model via developing a code and distribution of velocity, pressure, temperature, species concentration and liquid water saturation at the various layers of the cathode side of fuel cell are obtained.
Furthermore, the effect of physical and wetting properties of MPL including thickness, porosity, contact angle and permeability on saturation level and performance of the fuel cell are studied. The results show that by adding an extra micro porous layer between GDL and catalyst layer because of differencing in the wetting properties of the layers, a discontinuity appears in the liquid saturation and species concentration at the contact surface of them. In addition, according to the obtained results, increasing the MPL porosity causes liquid water saturation to decrease and improves the cell performance. While increasing the MPL thickness decreases the cell performance. In order to validate the results, the performance curves calculated by single and two-phase simulations were compared with experimental results and good agreement was found between them.

 
Keyword(s): POLYMER ELECTROLYTE MEMBRANE FUEL CELL, TWO-PHASE SIMULATION, HYDROPHOBIC POROUS LAYER, FUEL CELL PERFORMANCE CURVE, LIQUID WATER SATURATION
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

MAHNAMA, S., & KHAYAT, M. (2017). THREE DIMENSIONAL ANALYSIS OF ADDING A HYDROPHOBIC POROUS LAYER ON WATER SATURATION AT THE CATHODE OF A PEM FUEL CELL. MODARES MECHANICAL ENGINEERING, 16(11 ), 357-368. https://www.sid.ir/en/journal/ViewPaper.aspx?id=571975



Vancouver: Copy

MAHNAMA SEYED MEHDI, KHAYAT MORTEZA. THREE DIMENSIONAL ANALYSIS OF ADDING A HYDROPHOBIC POROUS LAYER ON WATER SATURATION AT THE CATHODE OF A PEM FUEL CELL. MODARES MECHANICAL ENGINEERING. 2017 [cited 2021July24];16(11 ):357-368. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=571975



IEEE: Copy

MAHNAMA, S., KHAYAT, M., 2017. THREE DIMENSIONAL ANALYSIS OF ADDING A HYDROPHOBIC POROUS LAYER ON WATER SATURATION AT THE CATHODE OF A PEM FUEL CELL. MODARES MECHANICAL ENGINEERING, [online] 16(11 ), pp.357-368. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=571975.



 
 
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