scholarly journals Mass transfer and oxygen analysis in the SNAP 5 kWe ground test reactor

1973 ◽  
Author(s):  
R.L. Eichelberger
Keyword(s):  
Mass Transfer ◽  
Ground Test ◽  
Test Reactor

scholarly journals Coupled Thermal-Hydraulic Analysis and Species Mass Transport in a Versatile Experimental Salt Irradiation Loop (VESIL) Using CTF

2021 ◽  
Vol 2 (3) ◽  
pp. 309-317
Author(s):  
Samuel A. Walker ◽  
Abdalla Abou-Jaoude ◽  
Zack Taylor ◽  
Robert K. Salko ◽  
Wei Ji
Keyword(s):  
Mass Transfer ◽  
Fission Product ◽  
Noble Metals ◽  
National Laboratory ◽  
Species Interaction ◽  
Transfer Model ◽  
Two Fluids ◽  
Gas System ◽  
Fuel Salt ◽  
Test Reactor

With the resurgence of interest in molten salt reactors, there is a need for new experiments and modeling capabilities to characterize the unique phenomena present in this fluid fuel system. A Versatile Experimental Salt Irradiation Loop (VESIL) is currently under investigation at Idaho National Laboratory to be placed in the Advanced Test Reactor (ATR). One of the key phenomena this proposed experiment plans to elucidate is fission product speciation in the fuel-salt and the subsequent effects this has on the fuel-salt properties, source term generation, and corrosion control. Specifically, noble gases (Xe & Kr) will bubble out to a plenum or off-gas system, and noble metals (Mo, Tc, Te, etc.) will precipitate and deposit in specific zones in the loop. This work extends the mass transfer and species interaction models in CTF (Coolant-Boiling in Rod Arrays—Two Fluids) and applies these models to give a preliminary estimation of fission product behavior in the proposed VESIL design. A noble metal–helium bubble mass transfer model is coupled with the thermal-hydraulic results from CTF to determine the effectiveness of this insoluble fission product (IFP) extraction method for VESIL. Amounts of IFP species extracted to the off-gas system and species distributions in VESIL after a 60-day ATR cycle are reported.

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