Performance of Planar High-Temperature Electrolysis Stacks for Hydrogen Production from Nuclear Energy

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

doi:10.13182/nt07-a3830

Cited by 87 publications

(59 citation statements)

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“…Invoking Faraday's law, the operating cell potential for this case approaches the reference opencell value, (24) which for steam electrolysis at 850ºC is equal to 1.34. For cases with variable gas composition or partial pressure, the open-cell potential is given by the Nernst Equation (14) and the corresponding efficiency limit varies accordingly.…”

Section: Thermodynamics Of High Temperature Electrolysismentioning

confidence: 76%

“…A good summary of our experience is provided by the results plotted in Fig. 19(b), from [24]. Figure 19.…”

Section: Inl Hte Experimental Program 31 Small-scale Testsmentioning

confidence: 85%

“…Results of initial short-stack HTE tests performed at INL are provided in references [23,24]. A good summary of our experience is provided by the results plotted in Fig.…”

Section: Inl Hte Experimental Program 31 Small-scale Testsmentioning

confidence: 99%

“…Performance degradation results with an SOEC stack tested at INL were also presented in [24]. Results of a 1000-hour test performed with a 25-cell stack are presented in Fig.…”

Section: Degradationmentioning

confidence: 99%

“…If supplemental hydrogen is available, nearly all of the carbon in the coal can end up in the liquid fuel product. Supplemental hydrogen for this process should be obtained from an efficient non-carbon-emitting process such as hightemperature electrolysis (HTE) of steam powered by nuclear energy [24]. Coupling of the HTE process to CTL is particularly appealing because it is more efficient than conventional electrolysis and because it provides both hydrogen and oxygen at elevated temperature.…”

Section: Syngas Production From Coal and Biomassmentioning

confidence: 99%

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High Temperature Electrolysis for Hydrogen Production from Nuclear Energy ? TechnologySummary

O’Brien¹,

Stoots²,

Herring³

et al. 2010

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The Department of Energy, Office of Nuclear Energy, has requested that a Hydrogen Technology Down-Selection be performed to identify the hydrogen production technology that has the best potential for timely commercial demonstration and for ultimate deployment with the Next Generation Nuclear Plant (NGNP). An Independent Review Team (IRT) has been assembled to execute the down-selection. This report has been prepared to provide the members of the Independent Review Team with detailed background information on the High Temperature Electrolysis (HTE) process, hardware, and state of the art. The Idaho National Laboratory has been serving as the lead lab for HTE research and development under the Nuclear Hydrogen Initiative. The INL HTE program has included small-scale experiments, detailed computational modeling, system modeling, and technology demonstration. Aspects of all of these activities are included in this report. In terms of technology demonstration, the INL successfully completed a 1000-hour test of the HTE Integrated Laboratory Scale (ILS) technology demonstration experiment during the fall of 2008. The HTE ILS achieved a hydrogen production rate in excess of 5.7 Nm 3 /hr, with a power consumption of 18 kW. This hydrogen production rate is far larger than has been demonstrated by any of the thermochemical or hybrid processes to date.This report was prepared in April-May 2009 specifically for the IRT, which at the end of its evaluation in July 2009, recommended that:DOE-NE should focus on the continued development of HTSE [High Temperature Steam Electrolysis] as the leading candidate for integration with NGNP in 2021. This conclusion is based upon the IRT judgment that HTSE has the highest probability of meeting the down-selection criteria described in the report, including efficient production of hydrogen at NGNP conditions.

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Section: Thermodynamics Of High Temperature Electrolysismentioning

confidence: 76%

“…A good summary of our experience is provided by the results plotted in Fig. 19(b), from [24]. Figure 19.…”

Section: Inl Hte Experimental Program 31 Small-scale Testsmentioning

confidence: 85%

“…Results of initial short-stack HTE tests performed at INL are provided in references [23,24]. A good summary of our experience is provided by the results plotted in Fig.…”

Section: Inl Hte Experimental Program 31 Small-scale Testsmentioning

confidence: 99%

“…Performance degradation results with an SOEC stack tested at INL were also presented in [24]. Results of a 1000-hour test performed with a 25-cell stack are presented in Fig.…”

Section: Degradationmentioning

confidence: 99%

Section: Syngas Production From Coal and Biomassmentioning

confidence: 99%

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