ORNL-2106 - the Molten Salt Energy Technologies Web Site

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Fig.4.2.4. Slingers from MTR In-Pile Loop No. 3
Fuel Pump. Note shiny, black deposit. 2X. Re-
duced 24.5%. (-
Fig. 4.2.5. Impeller (Top) and Slinger (Bottom)
Halves of Pump Sump from MTR In-Pile Loop No. 3
. Fuel Pump. 1/2X. Reduced 23.5%.
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PERIOD ENDING JUNE IO, 1956
The fuel in the pump appeared to be inhomo-
geneous in that it was made up of two phases.
One phq5e was green and had the normal appear-
ance of th'e fuel mixture used, and the other phase
was black. Samples of both phases were obtained
for chemical analyses. The two halves of the
pump sump, with the fuel still present, are shown
in Fig. 4.2.5. The impeller showed no evidence
of erosion, Figs. 4.2.6 and 4.2.7.
Charcoal samples were obtained from two of the
fission-gas adsorption traps in the purge system.
A black deposit that was found around the inlet
Fig. 4.2.6. Front Face of Impeller from MTR In-
Pile Loop No. 3 Fuel Pump. 1/2X. Reduced 15%.
Fig. 4.2.7. Side View of Impeller from MTR In-
Pile Loop No. 3 Fuel Pump. 2X. Reduced 23.5%.
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