Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack
Abstract
An experimental study is under way to assess the performance of solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800 to 900ºC. Results presented in this paper were obtained from a ten-cell planar electrolysis stack, with an active area of 64 cm2 per cell. The electrolysis cells are electrolytesupported, with scandia-stabilized zirconia electrolytes (~140 µm thick), nickel-cermet steam/hydrogen electrodes, and manganite air-side electrodes. The metallic interconnect plates are fabricated from ferritic stainless steel. The experiments were performed over a range of steam inlet mole fractions (0.1 - 0.6), gas flow rates (1000 - 4000 sccm), and current densities (0 to 0.38 A/cm2). 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. Hydrogen production rates up to 100 Normal liters per hour were demonstrated. Values of area-specific resistance and stack internal temperatures are presented as a function of current density. Stack performance is shown to be dependent on inlet steam flow rate.
- Authors:
- Publication Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- DOE - NE
- OSTI Identifier:
- 911083
- Report Number(s):
- INEEL/CON-05-02659
TRN: US0704386
- DOE Contract Number:
- DE-AC07-99ID-13727
- Resource Type:
- Conference
- Resource Relation:
- Conference: 3rd International Conference on Fuel Cell Science, Engineering and Technology,Ypsilanti, MI,05/23/2005,05/25/2005
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 - NUCLEAR FUEL CYCLE AND FUEL MATERIALS; AVAILABILITY; CONSUMPTION RATES; CURRENT DENSITY; ELECTRODES; ELECTROLYSIS; ELECTROLYTES; FLOW RATE; FUEL CELLS; GAS FLOW; HYDROGEN PRODUCTION; INTERSTITIAL HYDROGEN GENERATION; PERFORMANCE; PLATES; STAINLESS STEELS; STEAM; Hydrogen Production
Citation Formats
James O', Brien,, Stoots, Carl, Herring, Steve, and Hartvigsen, J. Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack. United States: N. p., 2005.
Web.
James O', Brien,, Stoots, Carl, Herring, Steve, & Hartvigsen, J. Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack. United States.
James O', Brien,, Stoots, Carl, Herring, Steve, and Hartvigsen, J. 2005.
"Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack". United States. https://www.osti.gov/servlets/purl/911083.
@article{osti_911083,
title = {Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack},
author = {James O' and Brien, and Stoots, Carl and Herring, Steve and Hartvigsen, J},
abstractNote = {An experimental study is under way to assess the performance of solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800 to 900ºC. Results presented in this paper were obtained from a ten-cell planar electrolysis stack, with an active area of 64 cm2 per cell. The electrolysis cells are electrolytesupported, with scandia-stabilized zirconia electrolytes (~140 µm thick), nickel-cermet steam/hydrogen electrodes, and manganite air-side electrodes. The metallic interconnect plates are fabricated from ferritic stainless steel. The experiments were performed over a range of steam inlet mole fractions (0.1 - 0.6), gas flow rates (1000 - 4000 sccm), and current densities (0 to 0.38 A/cm2). 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. Hydrogen production rates up to 100 Normal liters per hour were demonstrated. Values of area-specific resistance and stack internal temperatures are presented as a function of current density. Stack performance is shown to be dependent on inlet steam flow rate.},
doi = {},
url = {https://www.osti.gov/biblio/911083},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2005},
month = {Sun May 01 00:00:00 EDT 2005}
}