Permeation experiment with FLiBe - #270
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simopier
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simopier
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Thank you!
Good first take using a very simplified version of the model to reproduce this experimental data. Obviously, there is more to do here to match the measurements, but we'll get there step by step.
I have some comments/suggestions, especially related to how the Ni/FLiBe interface is being modeled, which we should discuss.
Additionally, it seems like you are having the same issue as detailed in: #200
Look at how we temporarily updated the test specification files to not run them for these validation cases, and reproduce this here.
| | --------- | ----------- | ----- | ----- | --------- | | ||
| | $l_{\mathrm{Ni}}$ | Ni membrane thickness | $2$ | mm | [!cite](calderoni2008measurement) | | ||
| | $l_{\mathrm{FLiBe}}$ | FLiBe membrane thickness | $81$ | mm | [!cite](calderoni2008measurement) | | ||
| | $P_{T_2}$ | Input pressure | $1210$ | Pa | [!cite](hattab2024openfoam) | |
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Is that value not from Pattrick's paper?
| | $K_{s, \mathrm{FLiBe}}$ | Henry's law solubility for tritium in FLiBe | $7.9 \times 10^{-2} \exp(- 35 \times 10^3 / RT)$ | mol/m$^3$/Pa | [!cite](calderoni2008measurement) | | ||
| | $D_{\mathrm{Ni}}$ | Diffusivity of tritium in nickel | $7 \times 10^{-7} \exp(- 39.5 \times 10^3 / RT)$ | m$^2$/s | [!cite](causey2012tritium) | | ||
| | $K_{s, \mathrm{Ni}}$ | Sieverts' law solubility for tritium in nickel | $564 \times 10^{-3} \exp(- 15.8 \times 10^3 / RT)$ | mol/m$^3$/Pa$^{0.5}$ | [!cite](calderoni2008measurement) | | ||
| | $K_{d, \mathrm{Ni}}$ | Surface rate of tritium in nickel | $1.44 \times 10^{-6} \exp(- 29.68 \times 10^3 / RT)$ | mol/m$^{2}$/s/Pa | [!cite](altunoglu1991permeation) | |
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You are currently not using this term, are you?
| [interface_sorption_Ni_FLiBe] | ||
| type = InterfaceSorption | ||
| K0 = ${K_s_FLiBe_prefactor} | ||
| Ea = ${K_s_FLiBe_energy} | ||
| n_sorption = ${n_Henry} | ||
| diffusivity = ${D_FLiBe} | ||
| unit_scale = ${unit_scale} | ||
| unit_scale_neighbor = ${unit_scale_neighbor} | ||
| temperature = ${temperature} | ||
| variable = 'tritium_concentration_Ni' | ||
| neighbor_var = 'tritium_concentration_FLiBe' | ||
| sorption_penalty = 1e1 | ||
| boundary = 'interface_Ni_FLiBe' |
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This does not correspond to the documentation (the documentation is wrong).
Also, let's discuss this in general, as I don't think this is correct either.
Co-authored-by: Federrico Hattab <federico.hattab@uniroma1.it> copy idaholab#194 (Ref. idaholab#12) Ref. idaholab#193)
Co-authored-by: Pierre-Clement Simon <pierreclement.simon@gmail.com>
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restarted in #384. |
3 participants
Reproduce Calderoni et al. (2008) tritium in FLiBe experiment
(Ref. #12)
(Ref. #193)
@simopier