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A METALLIC SEAL FOR HIGH-TEMPERATURE ELECTROLYSIS STACKS made of nickel-based superalloy X750 to avoid relaxation when the seal is compressed in its groove, and a specially profiled outer lining made of Fecralloy. Moreover, a stack design is proposed to tighten the seals at the operating temperature in order to let the stack pieces expand freely. Tightness qualifications on a specific device and during HTE stack tests are presented. These new metallic seal results are very encouraging for the future electrolysis stacks. They confirm that despite their stiffness, metallic steals can be used in stacks. This solution offer real potentials, such as robustness, pressure sustaining, and dismantling possibilities. Further investigations are realised in the French project ANR/ Pan-H/EMAIL and should be published soon. Figure 5: Leak measurement for each load level ba08-042 - leak test at 800°C under 3N/mm force leak load (N/mm) 4 0.02 3.5 3 0.015 2.5 2 0.01 1.5 cooling 1 0.005 0.5 0 0 0 500 1000 1500 time (min) leak (Nml/min/mm) Figure 6: Displacement measurement for each load level ba08-042 - leak test at 800°C under 3N/mm 4 0.8 load (N/mm) 3 2 1 warming creep cooling 0.6 0.4 0.2 displacement (mm) 0 0 0 500 1000 1500 force time (min) displacement 136 NUCLEAR PRODUCTION OF HYDROGEN – © OECD/NEA 2010
A METALLIC SEAL FOR HIGH-TEMPERATURE ELECTROLYSIS STACKS Figure 7: Cross-section of the tested seal Figure 8: Leak control realised on stack with pure hydrogen just after cermet reduction Test G1.1 : Comparison between hydrogen input flow and hydrogen output flow Flow (g/h) 13 12 11 10 9 8 7 6 5 RDMH2 DMSH2 water injection RDMH2 : input mass flow DMSH2 : output mass flow 26.8 26.9 27 27.1 27.2 Time (h) References Bram, M., et al. (2001), Electrochemical Society Proceedings, Vol. 16, pp. 875-884. Bram, M., et al. (2002), 5 th European SOFC Forum, Lucerne, Switzerland, 1-5 July, Vol. 2, pp. 847-854. Bram, M., et al. (2004), Journal of Power Sources, 138, pp. 111-119. Chou, Y.S., et al. (2002), Journal of Power Sources, 112, pp. 376-383. Duquette, J., et al. (2004), Journal of Power Sources, 137, pp. 71-75. Fergus, J.W. (2005), Journal of Power Sources, 147, pp. 46-57. NUCLEAR PRODUCTION OF HYDROGEN – © OECD/NEA 2010 137
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Nuclear Science 2010 Nuclear Produc
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ORGANISATION FOR ECONOMIC CO-OPERAT
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TABLE OF CONTENTS Table of contents
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TABLE OF CONTENTS Y. Gong, E. Chalk
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EXECUTIVE SUMMARY Executive summary
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EXECUTIVE SUMMARY steam turbine, in
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EXECUTIVE SUMMARY sulphur depositio
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EXECUTIVE SUMMARY affords saving 35
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EXECUTIVE SUMMARY safety assessment
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EXECUTIVE SUMMARY The question was
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CHANGING THE WORLD WITH HYDROGEN AN
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NUCLEAR HYDROGEN PRODUCTION PROGRAM
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NUCLEAR HYDROGEN PRODUCTION PROGRAM
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FRENCH RESEARCH STRATEGY TO USE NUC
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PRESENT STATUS OF HTGR AND HYDROGEN
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STATUS OF THE KOREAN NUCLEAR HYDROG
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THE CONCEPT OF NUCLEAR HYDROGEN PRO
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CANADIAN NUCLEAR HYDROGEN R&D PROGR
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Page 88 and 89: CANADIAN NUCLEAR HYDROGEN R&D PROGR
Page 90 and 91: APPLICATION OF NUCLEAR-PRODUCED HYD
Page 103 and 104: STATUS OF THE INL HIGH-TEMPERATURE
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Page 122 and 123: HIGH-TEMPERATURE STEAM ELECTROLYSIS
Page 131: MATERIALS DEVELOPMENT FOR SOEC Mate
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Page 142 and 143: DEGRADATION MECHANISMS IN SOLID OXI
Page 149 and 150: CAUSES OF DEGRADATION IN A SOLID OX
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Page 157 and 158: NUCLEAR HYDROGEN USING HIGH TEMPERA
Page 167: SESSION III: THERMOCHEMICAL SULPHUR
Page 170 and 171: CEA ASSESSMENT OF THE SULPHUR-IODIN
Page 181: STATUS OF THE INERI SULPHUR-IODINE
Page 184 and 185: INFLUENCE OF HTR CORE INLET AND OUT
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INFLUENCE OF HTR CORE INLET AND OUT
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EXPERIMENTAL STUDY OF THE VAPOUR-LI
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DEVELOPMENT OF HI DECOMPOSITION PRO
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SOUTH AFRICA’S NUCLEAR HYDROGEN P
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INTEGRATED LABORATORY SCALE DEMONST
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DEVELOPMENT STATUS OF THE HYBRID SU
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RECENT CANADIAN ADVANCES IN THE THE
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AN OVERVIEW OF R&D ACTIVITIES FOR T
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STUDY OF THE HYDROLYSIS REACTION OF
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DEVELOPMENT OF CuCl-HCl ELECTROLYSI
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EXERGY ANALYSIS OF THE Cu-Cl CYCLE
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CaBr 2 HYDROLYSIS FOR HBr PRODUCTIO
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SESSION V: ECONOMICS AND MARKET ANA
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DEVELOPMENT OF THE HYDROGEN ECONOMI
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NUCLEAR H 2 PRODUCTION - A UTILITY
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ALKALINE AND HIGH-TEMPERATURE ELECT
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THE PRODUCT OF HYDROGEN BY NUCLEAR
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SUSTAINABLE ELECTRICITY SUPPLY IN T
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PROHYTEC, THE FRENCH INDUSTRIAL PLA
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NHI ECONOMIC ANALYSIS OF CANDIDATE
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MARKET VIABILITY OF NUCLEAR HYDROGE
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POSSIBILITY OF ACTIVE CARBON RECYCL
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NUCLEAR SAFETY AND REGULATORY CONSI
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TRANSIENT MODELLING OF S-I CYCLE TH
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PROPOSED CHEMICAL PLANT INITIATED A
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CONCEPTUAL DESIGN OF THE HTTR-IS NU
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USE OF PSA FOR DESIGN OF EMERGENCY
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HEAT PUMP CYCLE BY HYDROGEN-ABSORBI
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HEAT EXCHANGER TEMPERATURE RESPONSE
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ALTERNATE VHTR/HTE INTERFACE FOR MI
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POSTER SESSION CONTRIBUTIONS Poster
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ACTIVITIES OF NUCLEAR RESEARCH INST
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ACTIVITIES OF NUCLEAR RESEARCH INST
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A URANIUM THERMOCHEMICAL CYCLE FOR
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A URANIUM THERMOCHEMICAL CYCLE FOR
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MEETING ORGANISATION Annex 1: Meeti
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LIST OF PARTICIPANTS REYTIER, Magal
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LIST OF PARTICIPANTS BROWN, Nichola
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LIST OF PARTICIPANTS SINK, Carl US
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