The effect of different gas diffusion layer porosity on proton exchange membrane fuel cells

Effects of Gas Diffusion Layer Porosity Distribution on Proton Exchange Membrane Fuel Cell

“…The results show that the introduction of composite porous GDL not only improves the species migration in the subland area of GDL, but also improves the species migration in the subchannel area, thereby affecting the overall performance of the fuel cell. Turkmen et al [23] mainly analyzed the polarization performance and found that the GDL porosity has a very limited effect on the fuel cell performance at high working voltage. The porosity of GDL should be maintained at a high level during the operation of the fuel cell.…”

Electrochemical behavior and compression force analysis for proton exchange membrane fuel cells with different reaction areas

“…These directly generate electric energy from the electrochemical reactions when hydrogen and air are delivered at the anode and cathode, respectively. Proton exchange membrane FCs (PEMFCs), of various FCs, have attracted significant attention in the fields of automotive, domestic, and portable applications because of relatively high energy density (approximately 200‐800 Wh kg −1 ), low operating temperature, no charging time required, zero emissions, and very low noise compared to other energy generators 1‐5 . However, there is still a need to improve the economics of this device.…”

“…21,22 In addition, investigations of GDL parameters such as permeability, resistance, and conductivity on various clamping changes [23][24][25] have also been reported. Finally, numerical simulations utilizing software were performed to understand the relationship between the clamping force and MPL, 26 contact pressure distribution and behavior, 27,28 GDL porosity, 5 and channel widths. 29 In many studies on PEMFCs, a laboratory-scale cell with a reaction area of 25 cm 2 has been applied.…”

Investigation of the cross-section area geometry effect on the performance of PEM fuel cell

“…These problems can be listed as the gradual decrease in fossil fuel reserves and the possibility of being exhausted shortly (or its extraction and processing would not be economically beneficial) and the negative environmental impacts caused by the toxic gases resulting from burning these fuels. For this reason, it has become necessary to focus on clean and renewable energy sources that will meet the energy needs [1]. The fuel cell (FC) stands out among other approaches to reducing the use of non-renewable energy sources and is seen as a promising tool to reduce the discharge of pollutant gases such as CO2, SO2.…”