Experimental Results for Direct Electron Irradiation of a Uranyl Sulfate Solution: Bubble Formation and Thermal Hydraulics Studies

Chemerisov, Sergey¹  Gromov, R.¹  Makarashvili, Vakhtang¹  Heltemes, Thad¹  Sun, Zaijing¹  Wardle, Kent E.¹  Bailey, James¹  Stepinski, Dominique¹  Jerden, James¹  Vandegrift, George F.¹ 

[1]Argonne National Lab. (ANL), Argonne, IL (United States)

关键词: SOLUTIONS;    THERMAL HYDRAULICS;    URANYL SULFATES;    RADIOLYSIS;    LINEAR ACCELERATORS;    ELECTRONS;    DEPLETED URANIUM;    MOLYBDENUM 99;    BUBBLES;    SULFURIC ACID;    HYDROGEN;    OXYGEN;    COMPUTERIZED SIMULATION;    MEV RANGE 10-100;    MULTIPHASE FLOW;    WATER;    POWER RANGE 01-10 KW;    POWER RANGE 10-100 KW;    TEMPERATURE GRADIENTS;    ABUNDANCE;    HEATING;    IRRADIATION;    ISOTOPE PRODUCTION;   

DOI  :  10.2172/1234216
RP-ID  :  ANL/NE--15/19
PID  :  OSTI ID: 1234216
Others  :  Other: 122481
Others  :  TRN: US1600211

美国|英语

来源: SciTech Connect

【 摘 要 】

In support of the development of accelerator-driven production of fission product Mo-99 as proposed by SHINE Medical Technologies, a 35 MeV electron linac was used to irradiate depleted-uranium (DU) uranyl sulfate dissolved in pH 1 sulfuric acid at average power densities of 6 kW, 12 kW, and 15 kW. During these irradiations, gas bubbles were generated in the solution due to the radiolytic decomposition of water molecules in the solution. Multiple video cameras were used to record the behavior of bubble generation and transport in the solution. Seven six-channel thermocouples were used to record temperature gradients in the solution from self-heating. Measurements of hydrogen and oxygen concentrations in a helium sweep gas were recorded by a gas chromatograph to estimate production rates during irradiation. These data are being used to validate a computational fluid dynamics (CFD) model of the experiment that includes multiphase flow and a custom bubble injection model for the solution region.