Physical Characteristics of some Composite Natural Uranium Fuel Elements in Heavy Water; LES PROPRIETES PHYSIQUES DE QUELQUES ELEMENTS COMPOSES, DANS DES REACTEURS DU TYPE U-D$sub 2$O.
- Author
- Lenmann, P.
- Published
- [Place of publication not identified] : [publisher not identified], 1959.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1959. - Physical Description
- microopaque : positive ; 8 x 13 cm
- Additional Creators
- Meier, R. W. and Schneeberger, J. P.
- Summary
- Lattices of natural uranium and heavy water were investigated for two types of fuel elements ---the rod cluster and tube cluster types. The geometric dimensions of uranium are determined by thermal considerations assuming a surface heat flux of 100 w/cm/sup 2/ and fixing the number of subelements per cluster. The specific power (w/g of fuel) is a parameter varied within reasonable limits. New methods for the calculation of the laitice parameters xi , p, and f were employed, including recently published American, Canadian, and french methods. Some further refinements for the resonance capture of interior surfaces of the composite elements were developed which are applicable to systems with a coolant material different from the mederator. finally, the material buckling is obtained for the cold-clean as well as the hot-poisoned case. The methods of calculation are then applied for other subdivided elements very similar in geometric shape for which the material buckiing is known from exponential or critical experiments. (auth)
- Report Numbers
- A/CONF.15/P/245
- Other Subject(s)
- BUCKLING
- CAPTURE
- CONFIGURATION
- COOLANTS
- CRITICALITY
- EQUATIONS
- EXPONENTIAL PILES
- FAST FISSION FACTOR
- FUEL ELEMENTS
- HEAT TRANSFER
- HEAVY WATER MODERATOR
- MASS
- MATERIALS TESTING
- MEASURED VALUES
- MODERATORS
- MULTIPLICATION FACTORS
- NATURAL URANIUM FUEL
- NEUTRON FLUX
- NUMERICALS
- PLANNING
- POISONING
- REACTOR CORE
- REACTORS
- RESONANCE ESCAPE PROBABILITY
- RODS
- SURFACES
- TEMPERATURE
- THERMAL UTILIZATION
- TUBES
- URANIUM
- ZONES
- Collection
- U.S. Atomic Energy Commission depository collection.
- Note
- NSA number: NSA-13-007104
OSTI Identifier 4263545
Research organization: Sulzer Bros. Ltd., Winterthur, Switzerland.
View MARC record | catkey: 38045665