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Title: Experimental design, operation, and results of a 4 kW high temperature steam electrolysis experiment

Journal Article · · Journal of Power Sources
 [1];  [2];  [3];  [1];  [2]
  1. Old Dominion Univ., Norfolk, VA (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  3. Materials and Systems Research, Inc., Salt Lake City, UT (United States)

High temperature steam electrolysis (HTSE) is a promising technology for large-scale hydrogen production. However, research on HTSE performance above the kW level is limited. This paper presents the results of 4 kW HTSE long-term test completed in a multi-kW test facility recently developed at the Idaho National Laboratory (INL). The 4 kW HTSE unit included two solid oxide electrolysis stacks operating in parallel, each of which included 40 electrode-supported planar cells. A current density of 0.41 A/cm2 was used for the long-term operation, resulting in a hydrogen production rate about 25 slpm. A demonstration of 920 hours stable operation was achieved. The paper also includes detailed descriptions of the piping layout, steam generation and delivery system, test fixture, heat recuperation system, hot zone, instrumentation, and operating conditions. As a result, this successful demonstration of multi-kW scale HTSE unit will help to advance the technology toward near-term commercialization.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC07-05ID14517
OSTI ID:
1245831
Alternate ID(s):
OSTI ID: 1250138
Report Number(s):
INL/JOU-15-34249; PII: S0378775315301488
Journal Information:
Journal of Power Sources, Vol. 297, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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Cited By (1)

A Detailed Post Mortem Analysis of Solid Oxide Electrolyzer Cells after Long-Term Stack Operation journal January 2018