Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.017 seconds
AbstractAbstract
[en] For describing the behaviour of the moisture in the concrete of the containment of SNR-300 in a hypothetical accident parameters were determined experimentally. The method is based on transmission of thermal neutrons through a plate of concrete. When a temperature of 1700C was applied at one end of the plate migration of moisture and evaporation took place. This could be observed by neutron radiography giving a gross picture of moisture migration. Furthermore the intensity of the transmitted neutron beam was measured with a neutron counter. From these values profiles of the change of moisture concentration could be obtained with a spatial resolution of few millimeters. The method used is entirely different from the conventional moisture meters which use fast neutrons. From the experimental data the mass transfer coefficient of vapour, the diffusion coefficient of vapour in concrete and the porosity of the concrete could be determined. (Auth.)
Primary Subject
Secondary Subject
Source
Jaeger, T.A. (comp.) (Bundesanstalt fuer Materialpruefung, Berlin (Germany, F.R.)); International Association for Structural Mechanics in Reactor Technology; Commission of the European Communities, Brussels (Belgium); British Nuclear Energy Society, London; v. 3 p. H1/9 1-11; 1975; North-Holland; Amsterdam, The Netherlands; 3. international conference on structural mechanics in reactor technology; London, UK; 1 Sep 1975
Record Type
Book
Literature Type
Conference
Country of publication
CHEMICAL COMPOSITION, CONCRETES, CONTAINMENT SHELLS, DIFFUSION, EVAPORATION, EXCURSIONS, HIGH TEMPERATURE, MASS TRANSFER, MEASURING METHODS, MOISTURE GAGES, NEUTRON BEAMS, NEUTRON DETECTION, NEUTRON RADIOGRAPHY, PLATES, POROSITY, REACTOR SAFETY, SNR REACTOR, SPATIAL DISTRIBUTION, SPATIAL RESOLUTION, THERMAL NEUTRONS, TRANSMISSION, WATER VAPOR
ACCIDENTS, BARYONS, BEAMS, BREEDER REACTORS, BUILDING MATERIALS, CONTAINMENT, DISTRIBUTION, ELEMENTARY PARTICLES, EPITHERMAL REACTORS, FAST REACTORS, FBR TYPE REACTORS, FERMIONS, FLUIDS, GASES, HADRONS, LIQUID METAL COOLED REACTORS, MEASURING INSTRUMENTS, NEUTRONS, NUCLEON BEAMS, NUCLEONS, PARTICLE BEAMS, PHASE TRANSFORMATIONS, POWER REACTORS, RADIATION DETECTION, REACTOR ACCIDENTS, REACTORS, RESOLUTION, SAFETY, SODIUM COOLED REACTORS, VAPORS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue