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Title: Hydrogen Production System with High Temperature Electrolysis for Nuclear Power Plant

Steam electrolysis with solid oxide cells is one of the most promising methods for hydrogen production, which has the potential to be high efficiency. Its most parts consist of environmentally sound and common materials. Recent development of ceramics with high ionic conductivity suggests the possibility of widening the range of operating temperature with maintaining the high efficiency. Toshiba is constructing a hydrogen production system with solid oxide electrolysis cells for nuclear power plants. Tubular-type cells using YSZ (Yttria-Stabilized- Zirconia) as electrolyte showed good performance of steam electrolysis at 800 to 900 deg C. Larger electrolysis cells with present configuration are to be combined with High Temperature Reactors. The hydrogen production efficiency on the present designed system is expected around 50% at 800 to 900 deg C of operating temperature. For the Fast Reactors, 'advanced cell' with higher efficiency at lower temperature are to be introduced. (authors)
Authors:
; ; ; ; ;  [1]
  1. Toshiba Corporation, Industrial and Power Systems and Services Company, 2-4 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045 (Japan)
Publication Date:
OSTI Identifier:
21021082
Resource Type:
Conference
Resource Relation:
Conference: 2006 International congress on advances in nuclear power plants - ICAPP'06, Reno - Nevada (United States), 4-8 Jun 2006; Other Information: Country of input: France; 8 refs; Related Information: In: Proceedings of the 2006 international congress on advances in nuclear power plants - ICAPP'06, 2734 pages.
Publisher:
American Nuclear Society - ANS, La Grange Park (United States)
Research Org:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; CERAMICS; CONFIGURATION; EFFICIENCY; ELECTROLYSIS; FAST REACTORS; HYDROGEN PRODUCTION; IONIC CONDUCTIVITY; NUCLEAR POWER PLANTS; PERFORMANCE; SOUND WAVES; STEAM; TEMPERATURE RANGE 0400-1000 K; YTTRIUM OXIDES; ZIRCONIUM OXIDES