Alves-Lima, Decio F. and Schlegl, Harald and Williams, Bryan M. and Letizia, Rosa and Dawson, Richard and Lin, Hungyen (2020) Observing liquid water build-up in proton exchange membrane fuel cells using terahertz imaging and high-resolution optical gauging. In: 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz . IEEE Computer Society Press, USA, pp. 529-530. ISBN 9781728166209
Full text not available from this repository.Abstract
The performance and durability of proton exchange membrane fuel cells are closely linked to effective water management strategies. Inadequate water balance results in polymer electrolyte membrane (PEM) dehydration or water flooding, both leading to performance loss and possible cell failure. Exploiting the contrast from liquid water absorption and transparency of dielectric materials, such as polymers, at terahertz (THz) frequencies, we apply a simple, compact THz imaging system to image water build-up in the flow channels of a THz-transparent fuel cell supported by high resolution optical gauging.