Test Results From the Idaho National Laboratory 15kW High Temperature Electrolysis Test Facility

Stoots, C. M.; Condie, K. G.; O’Brien, James E.; Herring, J. Stephen; Hartvigsen, Joseph

doi:10.1115/icone17-75417

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…This model also served to help determine the necessary reactant feed rates for the range of experiments that were conducted. A discussion of the INLdeveloped model can be found in [4,5].…”

Section: Single-cell Experimental Resultsmentioning

confidence: 99%

Carbon Dioxide Recycling by High Temperature Co-electrolysis and Hydrocarbon Synthesis

Hartvigsen¹,

Elangovan²,

Frost³

et al. 2008

ECS Trans.

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The materials used in solid oxide fuel cells (SOFC) can be used to produce synthesis gas from inputs of carbon dioxide, steam, and electricity. Carbon dioxide can be recovered from concentrated sources, such as fossil power plants. The electricity should come from a non-carbon based energy source (i.e. nuclear, solar, wind, biomass, or hydropower). Ceramatec and the Idaho National Laboratory have demonstrated high temperature co-electrolysis of CO2 and steam to produce synthesis gas. If a source of high temperature process heat is available, the endothermic electrolysis reactions can utilize both thermal and electrical inputs such that the conversion efficiency within the solid oxide electrolysis cell (SOEC) is 100%. The synthesis gas produced at Ceramatec in a SOEC has been fed through a Fischer Tropsch reactor to produce hydrocarbon fuels. Widespread implementation of synthetic fuel production from CO2 will enable greater use of intermittent renewable energy sources.

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“…This model also served to help determine the necessary reactant feed rates for the range of experiments that were conducted. A discussion of the INLdeveloped model can be found in [4,5].…”

Section: Single-cell Experimental Resultsmentioning

confidence: 99%

Carbon Dioxide Recycling by High Temperature Co-electrolysis and Hydrocarbon Synthesis

Hartvigsen¹,

Elangovan²,

Frost³

et al. 2008

ECS Trans.

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“…A series of calibration and validation activities have also been performed with the modified version of the BV equation in order to establish the BV parameters (i.e., transfer coefficients (α ୟ,୧ and α ୡ,୧ ) and pre-factors (J ref , FE , J ref , SGE )) and to check the model validity with these newly employed equations (Eqs. [6][7][8][9][10][11][12]. An experimental study of steam electrolysis using a 10-cell, electrolyte-supported short stack as carried out at Idaho National Laboratory (INL) is employed to demonstrate the electrochemical model validation approach.…”

Section: Model Calibration and Validationmentioning

confidence: 99%

“…The experimental setup considered here for model validation is fully described in Refs. (11,12). Briefly, the stack is based on a scandia-stabilized zirconia electrolyte with an LSM anode layer, an LSM/zirconia functional inner layer, and an outer cathode layer of pure LSM.…”

Section: Model Calibration and Validationmentioning

confidence: 99%

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Performance Analysis of Solid Oxide Electrolysis Cells for Syngas Production

Kazempoor

Braun

2014

ECS Trans.

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There is a significant effect from operating parameters on solid oxide electrolysis cell (SOEC) performance. The object of this research is to simulate the complex phenomena inside a planar SOEC in order to identify the best operating conditions. The model involves an intermediate fidelity of the electrochemical and thermo-fluid phenomena inside the cell. An example of the model validation for an electrolyte supported SOEC is presented here. The model is then employed to investigate various parameters such as temperature, fuel composition, flow rates and H2/CO ratio related to SOEC performance as well as hydrogen and syngas production. It has been observed that the reversible water-gas-shift (rWGS) reaction plays an important rule inside the fuel channels. Although the operating temperature, fuel composition and flow rates have direct effect on SOEC performance and power consumption, their influence on rWGS is more significant.

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“…Post-test examination of the cells used in the INL's three-module 15KW ILS test of 2008 [4] revealed that the O 2 -electrode delaminated from the electrolyte near the electrode / electrolyte interface. One possible reason for this delamination is excessive pressure buildup due to high O 2 flow in the over-sintered region.…”

Section: Electrolysis Stackmentioning

confidence: 99%

2500-Hour High Temperature Solid-Oxide Electrolyzer Long Duration Test

Stoots¹,

O’Brien²,

Condie³

et al. 2009

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The Idaho National Laboratory (INL) has been developing the concept of using solid oxide fuel cells as electrolyzers for large-scale, high-temperature (efficient), hydrogen production. This program was sponsored by the U.S. Department of Energy under the Nuclear Hydrogen Initiative. Utilizing a fuel cell as an electrolyzer introduces some inherent differences in cell operating conditions. In particular, the performance of fuel cells operated as electrolyzers degrades with time faster. This issue of electrolyzer cell and stack performance degradation over time has been identified as a major barrier to technology development. Consequently, the INL has been working together with Ceramatec,

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Test Results From the Idaho National Laboratory 15kW High Temperature Electrolysis Test Facility

Cited by 6 publications

References 9 publications

Carbon Dioxide Recycling by High Temperature Co-electrolysis and Hydrocarbon Synthesis

Carbon Dioxide Recycling by High Temperature Co-electrolysis and Hydrocarbon Synthesis

Performance Analysis of Solid Oxide Electrolysis Cells for Syngas Production

2500-Hour High Temperature Solid-Oxide Electrolyzer Long Duration Test

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