Nature-Inspired Flow-Fields and Water Management for PEM Fuel Cells

Fuel Processors for PEM Fuel Cells

Objectives • Demonstrate high performance desulfurizer, catalyst, micro-reactor and microcombustor/ microvaporizer concepts that will enable production of compact fuel processors for proton exchange membrane (PEM) fuel cells • Design, fabricate and evaluate a 1-kWe fuel-flexible fuel processor during the first 36 months (one of the fuels capable of being reformed will be EPA Phase II reformulat...

A New Maximum Power Point Tracking Method for PEM Fuel Cells Based On Water Cycle Algorithm

Maximum Power Point (MPP) tracker has an important role in the performance of fuel cell (FC) systems improvement. Tow parameters which have effect on the Fuel cell output power are temperature and membrane water. So contents make the MPP change by with variations in each parameter. In this paper, a new maximum power point tracking (MPPT) method for Proton Exchange Membrane (PEM) fuel cell is pr...

On the relative influence of convection in serpentine flow fields of PEM fuel cells

In polymer electrolyte membrane fuel cells, power losses associated with slow reaction kinetics and mass-transport limits can be strongly nfluenced by convective flow characteristics. Specifically, convection in the form of channel bypass may be utilized to simultaneously increase eactant concentration and reduce product concentration in the catalyst layer, thus reducing the activation and mass...

Microscale and Macroscale Aspects of Water Management Challenges in PEM Fuel Cells

PEM Fuel Cells for Road Vehicles

Proton exchange membrane fuel cell technology (PEMFC) is highly suited to automotive applications since it can offer efficient energy conversion in a compact and robust package. Size and reliability are related to the simplicity of the system, which in turn is influenced by the choice of stack cooling strategy. Intelligent Energy is targeting automotive applications using evaporatively cooled s...