Polarization Effects in the Molten Salt Electrorefining of Spent Nuclear Fuel

Estimates for Polarization Losses in Molten Carbonate Fuel Cell Cathodes

This paper compares the polarization losses associated with the various diffusion-reaction-conduction processes in molten carbonate cathodes. The comparisons are made by estimating each type of loss in terms of component electrochemical potentials in joules/mole; this allows diffusive, charge-transfer, and ohmic losses to all be put on equal footing. For characteristic parameter values, diffusi...

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Cost analysis of the US spent nuclear fuel reprocessing facility

a r t i c l e i n f o The US Department of Energy is actively seeking ways in which to delay or obviate the need for additional nuclear waste repositories beyond Yucca Mountain. All of the realistic approaches require the reprocessing of spent nuclear fuel. However, the US currently lacks the infrastructure to do this and the costs of building and operating the required facilities are poorly es...

Minimizing the Repository Volume for Spent Nuclear Fuel

When minimizing the size of the spent nuclear fuel repository, two parameters are important: the required total number of canisters and distance between neighbouring canisters (the canister array pitch). If the latter is kept fixed, the Canister Filling Problem arises. On the other hand, if the former is assumed minimal, we come across the Alternative Canister Filling Problem. Both problems are...

Costs of Reprocessing Versus Directly Disposing of Spent Nuclear Fuel