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Abstract
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Compression of the porous transport layers (PTLs) of Proton exchange membrane fuel cell affects the porosity and the the fraction of the pores occupied by liquid water. Therefore, by changing the compaction factor, the saturated water phenomena in the PTLs is different.The two-phase flow is simulated using Shan and Chen multi-component multiphase pseudopotential Lattice Boltzmann method with a multi relaxation time(MRT) collision operator. In this simulation, the forcing term is improved, in order to the physical properties of water and air achive to the real physical condition. It is known that saturation water transport is affected by the compression of porous transport layers(PTLs), microporous layer intrusion thickness(MPL), Capillary number, and the contact angle. The results indicate that different compression level, when the compression ratio increases, the water accumulated under the ribs increases while the amount of saturated water levels below the gas channel reduces. Furthermore, when the water injection rate enhances, the time to reach the steady state decreases, but the saturated water level is higher.
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