An endothermic chemical process facility coupled to a high temperature reactor. Part I: Proposed accident scenarios within the chemical plant

In the last years considerable efforts have been made at the Institute for Transuranium Elements (ITU) in order to reestablish European knowledge and ability in safety testing of irradiated high temperature reactor (HTR) Fuel Elements. In the framework of the 6th European framework programme a cold finger apparatus (Ku¨FA) furnace, formerly installed at FZ-Ju¨lich (FzJ), has been installed in a hot cell at ITU [Freis 2008] in order to test fission product release under high temperature and non-oxidising conditions. Several analytical methods (e.g. Gamma-spectrometry, mass-spectrometry) have been applied in order to analyse different isotopes released during Ku¨FA tests. After the heating tests, examinations of the fuel elements were performed including scanning electron microscopy (SEM) and micro-hardness testing of coated particles. Individual coated particles were object of heating tests in a Knudsen cell with a coupled mass spectrometer measuring all released species. In order to cover more accident scenarios, a second furnace for oxidising-conditions (air- or water-ingress) was constructed and installed in a cold lab. Furthermore a disintegration apparatus, based on anodic oxidation, was constructed and fuel elements were dissolved obtaining thousands of individual coated particles for further examination. A fully automated irradiated microsphere gamma analyzer (IMGA) is under construction and will be used, in particular, to identify and sort out failed particles.

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Transient simulation of an endothermic chemical process facility coupled to a high temperature reactor: Model development and validation

Nuclear Engineering and Design ◽

10.1016/j.nucengdes.2012.03.049 ◽

2012 ◽

Vol 248 ◽

pp. 1-13 ◽

Cited By ~ 2

Author(s):

Nicholas R. Brown ◽

Volkan Seker ◽

Shripad T. Revankar ◽

Thomas J. Downar

Keyword(s):

High Temperature ◽

Chemical Process ◽

Model Development ◽

Transient Simulation ◽

Reactor Model ◽

High Temperature Reactor ◽

Development And Validation

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Materials Modeling - a key for the Design of Advanced High Temperature Reactor Components

Revue Générale Nucléaire ◽

10.1051/rgn/20075050 ◽

2007 ◽

pp. 50-57

Author(s):

Maria Samaras ◽

Wolfgang Hoffelner ◽

Chu Chun Fu ◽

Michel Guttmann ◽

Roger E. Stoller

Keyword(s):

High Temperature ◽

Materials Modeling ◽

High Temperature Reactor

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Formation of Serrated Grain Boundaries and Its Effect on Tensile Properties at 950 ℃ in Alloy 617 for Very High Temperature Reactor

Korean Journal of Metals and Materials ◽

10.3365/kjmm.2014.53.1.1 ◽

2015 ◽

Vol 53 (1) ◽

pp. 1-12 ◽

Cited By ~ 5

Author(s):

Hyun Uk Hong ◽

June Woo Choi ◽

Ji Won Lee ◽

Je Hyun Lee ◽

Dong Jin Kim

Keyword(s):

High Temperature ◽

Grain Boundaries ◽

Tensile Properties ◽

Alloy 617 ◽

Very High Temperature Reactor ◽

High Temperature Reactor ◽

Very High

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HASTELLOY ALLOY B-2

Alloy Digest ◽

10.31399/asm.ad.ni0249 ◽

1977 ◽

Vol 26 (9) ◽

Keyword(s):

Corrosion Resistance ◽

High Temperature ◽

Physical Properties ◽

Stress Corrosion Cracking ◽

Heat Affected Zone ◽

Chemical Process ◽

Heat Treating ◽

Cabot Corporation ◽

Temperature Performance ◽

Excellent Corrosion Resistance

Abstract HASTELLOY alloy B-2 has outstanding corrosion resistance in the as-welded condition. It is an improved wrought version of HASTELLOY alloy B with the same excellent corrosion resistance as alloy B, but with improved resistance to knife line and heat-affected zone attack. Alloy B-2 resists the formation of grain-boundry carbide precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. This alloy also has excellent resistance to pitting and stress-corrosion cracking. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-249. Producer or source: Stellite Division, Cabot Corporation.

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