ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Two experimental loops for operation in research reactor LVR-15 in ÚJV Řež arerecently under preparation: High Temperature Helium Loop (HTHL) and SuperCritical Water Loop(SCWL). Pure helium will be used as working medium in HTHL and its main physical parametersare: operating pressure 7MPa, max. temperature in the test section 900C and flow rate 36kg/h.HTHL will include helium purification system, system for dosage of impurities (e.g. CO2, H2, H2O,O2, N2 etc.) and helium sampling. Helium purification experiments and testing of materials insimulated HTR conditions will take place in HTHL in the future. Main parameters of the SCWL are25MPa, max. temperature in the test section 600°C, flow rate max. 200kg/h. SCWL will be used forcorrosion tests of candidate materials, studies of water radiolysis at supercritical conditions and fortesting of water chemistry suitable for operation. Both loops possess an irradiation channel withquite complicated internals design, whose complexity is imposed by current constraints onconstructional materials of nuclear experimental devices, which limit the choice and maximumsurface temperature of material of construction to 500°C for austenitic stainless steel. The workingtemperature will thus be attained only in a restricted volume of the test section. The channelinternals will be briefly described. The mentioned loops will represent novel experimental devices,whose objective is to gain and extend knowledge on materials and environment performance underthe influence of radiation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.595-598.559.pdf
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