Mitigation of MHD phenomena in DCLL blankets by Flow Channel Inserts based on a SiC-sandwich material concept

C. Soto; S. Smolentsev; C. García-Rosales

doi:10.1016/j.fusengdes.2019.111381

Mitigation of MHD phenomena in DCLL blankets by Flow Channel Inserts based on a SiC-sandwich material concept

C. Soto, S. Smolentsev, C. García-Rosales

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The DCLL blanket is an attractive concept for future fusion reactors. In order to mitigate MHD effects from the interaction between flowing PbLi and magnetic field, Flow Channel Inserts (FCIs) need to be developed. SiC-based materials are main candidates for high-temperature FCIs. In this work, the MHD interactions and their possible mitigation by FCIs consisting of a porous SiC core with a dense protective SiC coating are studied. The dependency between MHD effects and the FCIs’ properties is discussed under relevant conditions for the DCLL concept. The results show that with a porous-dense SiC-sandwich material, a pressure gradient of ∼120 Pa/m is predicted for a 4 T magnetic field, and of ∼300 Pa/m for 10 T, if an FCI with insulating porous core (< ∼1 S/m) is used. Relevant cases considering a PbLi infiltration in the porous SiC core due to possible damages in the protective coating are presented.

Original language	English
Article number	111381
Journal	Fusion Engineering and Design
Volume	151
DOIs	https://doi.org/10.1016/j.fusengdes.2019.111381
State	Published - Feb 2020
Externally published	Yes

Funding

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

Funders	Funder number
Horizon 2020 Framework Programme
H2020 Euratom	2014-2018, 633053, 2019-2020
European Commission

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.fusengdes.2019.111381

Cite this

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title = "Mitigation of MHD phenomena in DCLL blankets by Flow Channel Inserts based on a SiC-sandwich material concept",

abstract = "The DCLL blanket is an attractive concept for future fusion reactors. In order to mitigate MHD effects from the interaction between flowing PbLi and magnetic field, Flow Channel Inserts (FCIs) need to be developed. SiC-based materials are main candidates for high-temperature FCIs. In this work, the MHD interactions and their possible mitigation by FCIs consisting of a porous SiC core with a dense protective SiC coating are studied. The dependency between MHD effects and the FCIs{\textquoteright} properties is discussed under relevant conditions for the DCLL concept. The results show that with a porous-dense SiC-sandwich material, a pressure gradient of ∼120 Pa/m is predicted for a 4 T magnetic field, and of ∼300 Pa/m for 10 T, if an FCI with insulating porous core (< ∼1 S/m) is used. Relevant cases considering a PbLi infiltration in the porous SiC core due to possible damages in the protective coating are presented.",

author = "C. Soto and S. Smolentsev and C. Garc{\'i}a-Rosales",

note = "Publisher Copyright: {\textcopyright} 2019 C. Soto, S. Smolentsev, C. Garc{\'i}a-Rosales",

year = "2020",

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doi = "10.1016/j.fusengdes.2019.111381",

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volume = "151",

journal = "Fusion Engineering and Design",

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AU - Soto, C.

AU - Smolentsev, S.

AU - García-Rosales, C.

PY - 2020/2

Y1 - 2020/2

N2 - The DCLL blanket is an attractive concept for future fusion reactors. In order to mitigate MHD effects from the interaction between flowing PbLi and magnetic field, Flow Channel Inserts (FCIs) need to be developed. SiC-based materials are main candidates for high-temperature FCIs. In this work, the MHD interactions and their possible mitigation by FCIs consisting of a porous SiC core with a dense protective SiC coating are studied. The dependency between MHD effects and the FCIs’ properties is discussed under relevant conditions for the DCLL concept. The results show that with a porous-dense SiC-sandwich material, a pressure gradient of ∼120 Pa/m is predicted for a 4 T magnetic field, and of ∼300 Pa/m for 10 T, if an FCI with insulating porous core (< ∼1 S/m) is used. Relevant cases considering a PbLi infiltration in the porous SiC core due to possible damages in the protective coating are presented.

AB - The DCLL blanket is an attractive concept for future fusion reactors. In order to mitigate MHD effects from the interaction between flowing PbLi and magnetic field, Flow Channel Inserts (FCIs) need to be developed. SiC-based materials are main candidates for high-temperature FCIs. In this work, the MHD interactions and their possible mitigation by FCIs consisting of a porous SiC core with a dense protective SiC coating are studied. The dependency between MHD effects and the FCIs’ properties is discussed under relevant conditions for the DCLL concept. The results show that with a porous-dense SiC-sandwich material, a pressure gradient of ∼120 Pa/m is predicted for a 4 T magnetic field, and of ∼300 Pa/m for 10 T, if an FCI with insulating porous core (< ∼1 S/m) is used. Relevant cases considering a PbLi infiltration in the porous SiC core due to possible damages in the protective coating are presented.

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Mitigation of MHD phenomena in DCLL blankets by Flow Channel Inserts based on a SiC-sandwich material concept

Abstract

Funding

UN SDGs

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