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

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MAHNAMA SEYED MEHDI; KHAYAT MORTEZA

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Journal: Modares Mechanical Engineering Year:2017 | Volume:16 | Issue:11 Page(s): 357-368

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Title

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 | Issue Writer Certificate

Keywords

POLYMER ELECTROLYTE MEMBRANE FUEL CELLQ1

TWO-PHASE SIMULATIONQ1

HYDROPHOBIC POROUS LAYERQ1

FUEL CELL PERFORMANCE CURVEQ1

LIQUID WATER SATURATIONQ1

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.

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APA: Copy

MAHNAMA, SEYED MEHDI, & KHAYAT, MORTEZA. (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. SID. https://sid.ir/paper/178916/en

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[Internet]. 2017;16(11 ):357-368. Available from: https://sid.ir/paper/178916/en

IEEE: Copy

SEYED MEHDI MAHNAMA, and MORTEZA KHAYAT, “THREE DIMENSIONAL ANALYSIS OF ADDING A HYDROPHOBIC POROUS LAYER ON WATER SATURATION AT THE CATHODE OF A PEM FUEL CELL,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 11 , pp. 357–368, 2017, [Online]. Available: https://sid.ir/paper/178916/en

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