Homogeneous reactor project: quarterly progress report for period ending July 31, 1957
Homogeneous Reactor Test. Repairs and modification to the HRT system were made throughout the quarter. Effects of letdown rate and O/sub 2/ injection rate on Xe poison level and excess O/sub 2/ concentration are given. Design of the primary refrigeration system was completed. The HRT mockup terminated a 1580 hr run with 0.04m UO/sub 2/SO/sub 4/ because of a tube failure in the 80-kw heat exchanger. The fuel and blanket recombiners showed that no significant loss of Pt had occurred since installation. Prototype linear differential transformers were received and will be tested for use on the reactor displacement-type liquid- level transmitters. The low heat transfer of the Ta-lined stainless steel dissolver was remedied by adding Hg to the space between the liner and the dissolver shell. Reactor Design and Analysis. Preliminary flowsheets and design data were prepared for HRE-3, a 60 Mw Th breeder reactor. Nuclear characteristics associated with spherical reactors in the size likely for the HRE- 3 were evaluated. Engineering Development. Stress-corrosion cracking of the heat exchanger tube-joint test bundle was noted. The rheology of various ThO/sub 2/ slurried is described. Alterations in the HRT slurry blanket test system are given. Reactor Materials Research. The second all-Ti loop, 100A loop H, was placed in operation. Data are given on long-term stability runs with 0.04m UO/ sub 2/SO/sub 4/ containing 0.025m H/sub 2/SO/sub 4/ and 0.005m CuSO/sub 4/. The effect of several variables on the corrosion of type 347 stainless steel is discussed. Corrosion of cast Zr-base Alloy by oxygenated 0.04m UO/sub 2/SO/sub 4/ 0.02m H/sub 2/SO/sub 4/-0.005m CuSO/sub 4/ solution at 300 deg C is given. Two test runs were made in an attempt to circulate a 650 deg C-calcined ThO/sub 2/ slurry at a concentration of 1000 g of Th per kilogram of water. The corrosion by ThO/sub 2/ slurries with silicate additions is described. Development and construction of in-pile loops is described. Results of corrosion data for Zr alloys in in-pile loops are given. Mechanical properties of Zr-Nb alloy and Zircaloy-2 are given. Chemical Engineering Development. The adsorption of fission product Kr by activated charcoal is described. In-pile experiments were carried out to determine the behavior of Pu and Np produced in a U solution under reactor conditions. The effect of calcination temperature on the viscosities of ThO/sub 2/-U slurries is given. Supporting Chemical Research. The densities of heavy-water liquid and saturated vapor at elevated temperatures up to the critical point were determined. The effect of CuSO/sub 4/ and H/sub 2/SO/sub 4/ on the homogeneous catalysis of the H/sub 2/-O/sub 2/ recombination was studied. Analytical Chemistry. Two improved methods were developed for the separation and estimation of the Al content of contaminated slurries of ThO/sub 2/. (For preceding period see ORNL-2331.) (W.L.H.)
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-12-000567
- OSTI ID:
- 4353458
- Report Number(s):
- ORNL--2379
- Country of Publication:
- United States
- Language:
- English
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HOMOGENEOUS REACTOR PROJECT QUARTERLY PROGRESS REPORT FOR PERIOD ENDING JULY 31, 1956
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PRELIMINARY ZIRCONIUM ALLOY DATA FROM LOOP L-2-17
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTIVATED CARBON-- ADSORPTION-- FISSION PRODUCTS-- HOMOGENEOUS REACTORS-- HRT-- KRYPTON-- NEPTUNIUM-- PLANNING-- PLUTONIUM-- REACTORS-- SOLUTIONS-- TEMPERATURE-- TESTING-- THORIUM OXIDES-- URANIUM-- VISCOSITY
ALUMINUM-- CATALYSIS-- COPPER SULFATES-- DENSITY-- HEAVY WATER-- HIGH TEMPERATURE-- HOMOGENEOUS REACTORS-- HRT-- HYDROGEN-- IMPURITIES-- LIQUIDS-- OXYGEN-- PLANNING-- QUALITATIVE ANALYSIS-- REACTORS-- REPROCESSING-- SEPARATION PROCESSES-- SLURRIES-- SULFURIC ACID-- TESTING-- THORIUM OXIDES-- VAPORS
BLANKETS-- CATALYSIS-- COOLING-- ENRICHMENT-- FAILURES- - FUELS-- HEAT EXCHANGERS-- HEAT TRANSFER-- HOMOGENEOUS REACTORS-- HRT-- INJECTION-
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTIVATED CARBON-- ADSORPTION-- FISSION PRODUCTS-- HOMOGENEOUS REACTORS-- HRT-- KRYPTON-- NEPTUNIUM-- PLANNING-- PLUTONIUM-- REACTORS-- SOLUTIONS-- TEMPERATURE-- TESTING-- THORIUM OXIDES-- URANIUM-- VISCOSITY
ALUMINUM-- CATALYSIS-- COPPER SULFATES-- DENSITY-- HEAVY WATER-- HIGH TEMPERATURE-- HOMOGENEOUS REACTORS-- HRT-- HYDROGEN-- IMPURITIES-- LIQUIDS-- OXYGEN-- PLANNING-- QUALITATIVE ANALYSIS-- REACTORS-- REPROCESSING-- SEPARATION PROCESSES-- SLURRIES-- SULFURIC ACID-- TESTING-- THORIUM OXIDES-- VAPORS
BLANKETS-- CATALYSIS-- COOLING-- ENRICHMENT-- FAILURES- - FUELS-- HEAT EXCHANGERS-- HEAT TRANSFER-- HOMOGENEOUS REACTORS-- HRT-- INJECTION-