Xenon Behavior in Molten Salt Reactor Graphite

2020 ◽  
Vol 6 (4) ◽  
Author(s):  
Terry J. Price ◽  
Ondrej Chvala ◽  
Zack Taylor
Keyword(s):  
Mass Transfer ◽  
Molten Salt ◽  
Diffusion Coefficients ◽  
Mass Diffusion ◽  
Molten Salt Reactor ◽  
Reactor Graphite

Abstract This article discusses the aspects of 135Xe behavior in molten salt reactor (MSR) graphite. Models of MSR graphite are described. The related mass transfer and mass diffusion coefficients are described and means by which they can be calculated are detailed. Xenon reactivity effects are explored. A method is presented to model the internal xenon distribution within the graphite stringers.

Calculation of the Effective Diffusion Coefficients in Drying of Chemical and Mechanical Pretreated Rosehip Fruits (Rosa eglanteria L.) with Selected Mass Transfer Models

2013 ◽  
Vol 9 (4) ◽  
pp. 481-486 ◽  
Author(s):  
Alejandra Mabellini ◽  
Elizabeth Ohaco ◽  
Carlos Márquez ◽  
Jorge E. Lozano ◽  
Antonio De Michelis
Keyword(s):  
Mass Transfer ◽  
Effective Mass ◽  
Diffusion Coefficients ◽  
Effective Diffusion ◽  
Ethyl Oleate ◽  
Mass Diffusion ◽  
Water Diffusion ◽  
Second Law ◽  
Effective Diffusion Coefficients ◽  
Transfer Models

AbstractThe aim of this work was to select models of mass transfer to estimate effective mass diffusion coefficients during the dehydration of Rosa eglanteria fruits with air at 70°C. Fruits were pretreated chemically and mechanically (dipping it in NaOH and ethyl oleate solutions and cutting or perforating the fruit cuticle). Selected models were those of Becker and Fick’s second law, considering fruit shrinkage during drying. Both models satisfactorily predict the fruit drying, and the different pretreatments, to total or partially remove this waxen cuticle, noticeably improved water diffusion, reducing the time of processing from 28% (NaOH) to 52% (oleate and mechanical pretreatments). Mechanical pretreatments were the more effective, because oleate presents quality problems.

Proton Reaction Determination of Lithium and Fluorine in Molten Salt Reactor Graphite

1968 ◽  
Vol 5 (4) ◽  
pp. 269-274 ◽  
Author(s):  
R. L. Macklin ◽  
J. H. Gibbons ◽  
E. Ricci ◽  
T. Handley ◽  
D. Cuneo
Keyword(s):  
Molten Salt ◽  
Molten Salt Reactor ◽  
Reactor Graphite

Signatures of plutonium diversion in Molten Salt Reactor dynamics

2021 ◽  
Vol 160 ◽  
pp. 108370
Author(s):  
Alexander M. Wheeler ◽  
Ondřej Chvála ◽  
Steven Skutnik
Keyword(s):  
Molten Salt ◽  
Molten Salt Reactor ◽  
Reactor Dynamics

Analyses of production capacity of 89Sr and 90Sr in the 2 MW molten salt reactor

2021 ◽  
Vol 173 ◽  
pp. 109714
Author(s):  
Chen Wu ◽  
Chenggang Yu ◽  
Ao Zhang ◽  
Chunyan Zou ◽  
Yuwen Ma ◽  
...  
Keyword(s):  
Molten Salt ◽  
Production Capacity ◽  
Molten Salt Reactor

A new method for monitoring the redox potential of fuel salt based on the deposition of 95Nb on Hastelloy C276

2021 ◽  
Vol 109 (5) ◽  
pp. 357-365
Author(s):  
Zhiqiang Cheng ◽  
Zhongqi Zhao ◽  
Junxia Geng ◽  
Xiaohe Wang ◽  
Jifeng Hu ◽  
...  
Keyword(s):  
Redox Potential ◽  
Molten Salt ◽  
Specific Activity ◽  
Chemical Reduction ◽  
Quantitative Approach ◽  
Experimental Results ◽  
New Method ◽  
Molten Salt Reactor ◽  
Fuel Salt ◽  
Well Correlation

Abstract To develop the application of 95Nb as an indicator of redox potential for fuel salt in molten salt reactor (MSR), the specific activity of 95Nb in FLiBe salt and its deposition of 95Nb on Hastelloy C276 have been studied. Experimental results indicated that the amount of 95Nb deposited on Hastelloy C276 resulted from its chemical reduction exhibited a positive correlation with the decrease of 95Nb activity in FLiBe salt and the relative deposition coefficient of 95Nb to 103Ru appeared a well correlation with 95Nb activity in FLiBe salt. Both correlations implied that the measurement of 95Nb activity deposited on Hastelloy C276 specimen might provide a quantitative approach for monitoring the redox potential of fuel salt in MSR.

Transition to thorium fuel cycle on a heavy water moderated molten salt reactor by using low enrichment uranium

2022 ◽  
Vol 165 ◽  
pp. 108638
Author(s):  
Jianhui Wu ◽  
Jingen Chen ◽  
Chunyan Zou ◽  
Chenggang Yu ◽  
Xiangzhou Cai ◽  
...  
Keyword(s):  
Molten Salt ◽  
Heavy Water ◽  
Fuel Cycle ◽  
Molten Salt Reactor

Implementation of two-phase gas transport into VERA for molten salt reactor analysis

2022 ◽  
Vol 165 ◽  
pp. 108672
Author(s):  
Zack Taylor ◽  
Robert Salko ◽  
Aaron M. Graham ◽  
Benjamin S. Collins ◽  
G. Ivan Maldonado
Keyword(s):  
Molten Salt ◽  
Gas Transport ◽  
Molten Salt Reactor ◽  
Two Phase
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