Dead-end mode Polymer Electrolyte Membrane Fuel Cell(PMEFC), emerging as a power of submarine and Unmanned Underwater Vehicles according to anisotropy of Gas Diffusion Layers (GDL) was studied. Dead-end mode PEMFC must execute purge periodically becau...
Dead-end mode Polymer Electrolyte Membrane Fuel Cell(PMEFC), emerging as a power of submarine and Unmanned Underwater Vehicles according to anisotropy of Gas Diffusion Layers (GDL) was studied. Dead-end mode PEMFC must execute purge periodically because water accumulates in GDL after response of fuels. Because the deformation happens when fuel cell stack is assembled, the deformation can be differed by difference of physical strength. So, we make a comparison with 0 degree GDL and 90 degree GDL to identify the difference of deformation and purge characteristics. As a result, 90 degree GDL have lower deformation and longer purge period, which means there is longer underwater time of submarine and UUV. This result will be a reference to the development for propulsion capability of future naval submarine and UUV.