Efficiency improvement of a PEMFC system by applying a turbocharger

Experimental and numerical study on the water transport behavior through Nafion® 117 for polymer electrolyte membrane fuel cell

“…This linear relationship between saturation factor and activity is obtained by our modeling of stack conducted at former numerical study [44]. The saturation factor of the dry side is calculated by the above equations; however, that of the wet side does not follow the same pattern.…”

“…where A hydrophilic is the area covered by the hydrophobic domain of the membrane and D w is the diffusivity of a water molecule, which is expressed as follows [44]:…”

“…In membrane humidifier, the mass flow rate of the dry side often is nearly twice more than that of the wet side. [43][44][45][46][47] On the other hand, large amount of humid air and relatively small amount of dry hydrogen place near the membrane in the stack. Therefore, understanding of the effect of mass flow rate for water transport is important.…”

Design and Simulation of Proton Exchange Membrane Fuel Cell Exhaust Gas Recovery System

“…Reference [5] designed a load governor which could be added to the air supply control system to monitor the load and prevent violation of constraints by modifying the load command to the fuel cell system. Reference [6] built a PEMFC system that employed a turbocharger to reuse the waste energy. Reference [7] gave two methods to combine the turbocharger with an electric compressor, namely in series and in parallel, which were evaluated for a fuel cell system.…”

“…• 60 2 × 3.14 (6) where is the compressor speed. The compressor model of this paper was built based on the experimental data provided in reference [3,4].…”