An experimental study has been completed to assess the performance of single solid-oxide electrolysis cells operating over a temperature range of 800 to 900°C. The experiments were performed over a range of steam inlet partial pressures (2.3–12.2 kPa), carrier gas flow rates (50–200 sccm), and current densities (−0.75 to 0.25 A/cm2) using single electrolyte-supported button cells of scandia-stabilized zirconia. Steam consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation. Cell operating potentials and cell current were varied using a programmable power supply and monitored continuously. Values of area-specific resistance and thermal efficiency are presented as a function of current density. Cell performance is shown to be continuous from the fuel-cell mode to the electrolysis mode of operation. The effects of steam starvation and thermal cycling on cell performance parameters are discussed.
- Nuclear Engineering Division
Performance Measurements of Solid-Oxide Electrolysis Cells for Hydrogen Production From Nuclear Energy
- Views Icon Views
- Share Icon Share
- Search Site
O’Brien, JE, Stoots, CM, Herring, JS, Lessing, PA, Hartvigsen, JJ, & Elangovan, S. "Performance Measurements of Solid-Oxide Electrolysis Cells for Hydrogen Production From Nuclear Energy." Proceedings of the 12th International Conference on Nuclear Engineering. 12th International Conference on Nuclear Engineering, Volume 1. Arlington, Virginia, USA. April 25–29, 2004. pp. 523-532. ASME. https://doi.org/10.1115/ICONE12-49479
Download citation file: