Reliability improvements of corrosion-resistant equipment for thermochemical water splitting hydrogen production iodine-sulfur process

•Propose the method for quality management of glass lined steel components.•The qualified glass-lined protective sheaths are proved its applicability for IS process.•Quality management method of the glass-lined steel components for IS process was improved. Japan Atomic Energy Agency (JAEA) has been...

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Bibliographic Details
Published in:Nuclear engineering and design 2020-05, Vol.361, p.110573, Article 110573
Main Authors: Kamiji, Yu, Noguchi, Hiroki, Takegami, Hiroaki, Tanaka, Nobuyuki, Iwatsuki, Jin, Kasahara, Seiji, Kubo, Shinji
Format: Article
Language:English
Subjects:
Chemical reactors
Corrosion
Corrosion products
Corrosion resistance
Corrosion resistant steels
Glass
High temperature gas cooled reactors
Hydrogen
Hydrogen production
Iodine
Nuclear energy
Nuclear reactors
Reactors
Reliability
Sheaths
Stress analysis
Sulfur
Thermocouples
Water splitting
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Summary:•Propose the method for quality management of glass lined steel components.•The qualified glass-lined protective sheaths are proved its applicability for IS process.•Quality management method of the glass-lined steel components for IS process was improved. Japan Atomic Energy Agency (JAEA) has been conducting R&D on the thermochemical iodine-sulfur (IS) process for nuclear-powered hydrogen production. The IS process is one of the promising candidates of heat application of the high-temperature gas-cooled reactors. JAEA achieved continuous hydrogen production for one week with a hydrogen production rate of 30 NL/h by using a test apparatus made of glass and fluororesin material. Subsequently, JAEA fabricated main chemical reactors made of industrial structural materials and confirmed their integrity in practical corrosive environments in the IS process. Based on the results, JAEA has fabricated a 100 NL/h-H2-scale test facility made of industrial structural materials; one of the important materials is the glass-lined steel for corrosion resistant components such as vessels, pipes and protective sheaths of sensors. This report will present technical matters to improve reliability of the glass-lined protective sheaths of thermocouple. In addition, results of quality confirmation will be presented, which are stress analyses for the glass layer by FEM, tests for heat cycle, bending load and corrosion.
ISSN:0029-5493
1872-759X
DOI:10.1016/j.nucengdes.2020.110573