Deployment of multiple shattered pellet injection systems in KSTAR

Soo Hwan Park; Kun Su Lee; Larry R. Baylor; Steven J. Meitner; Hyun Myung Lee; Jae In Song; Trey E. Gebhart; Sang Won Yun; Jayhyun Kim; Kwang Pyo Kim; Kap Rai Park; Si Woo Yoon

doi:10.1016/j.fusengdes.2020.111535

Deployment of multiple shattered pellet injection systems in KSTAR

Soo Hwan Park, Kun Su Lee, Larry R. Baylor, Steven J. Meitner, Hyun Myung Lee, Jae In Song, Trey E. Gebhart, Sang Won Yun, Jayhyun Kim, Kwang Pyo Kim, Kap Rai Park, Si Woo Yoon

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

33 Scopus citations

Abstract

Shattered pellet injection is of the most attractive way to mitigate the plasma disruption in fusion research facilities up to now. DIII-D has already utilized it and achieved very positive results. ITER has decided to adopt this technology for the DMS (disruption mitigation system) for PFPO-1 (Pre-Fusion Power Operation phase 1). The validation between simulation code and experiment, and continuous engineering development need to be carried out to meet the DMS's requirement and reliability. KSTAR (Korea Superconducting Tokamak Advanced Research) is a possible candidate to test the urgent issues of plasma disruption for ITER. KSTAR can install two injectors in toroidal opposite positions. For this work, ORNL (Oak Ridge National Laboratory) will provide the two injectors, the shatter tubes and auxiliary systems. NFRI (National Fusion Research Institute) is preparing the infrastructure of a pumping system, control and data acquisition system, and arranging the location of diagnostic and the heating systems. This presentation describes the basic requirements and the engineering challenges to be solved for successful deployment and operation of multiple SPI injectors in 2019.

Original language	English
Article number	111535
Journal	Fusion Engineering and Design
Volume	154
DOIs	https://doi.org/10.1016/j.fusengdes.2020.111535
State	Published - May 2020

Funding

This study was supported by Korean Ministry of Science and ICT under the Korea Superconducting Tokamak Advanced Research (KSTAR) Project. This work was supported by the Oak Ridge National Laboratory managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725 and by the ITER Organization.

Funders	Funder number
ITER
Korea Superconducting Tokamak Advanced Research
Korean Ministry of Science and ICT
UT-Battelle
U.S. Department of Energy	DE-AC05-00OR22725
Oak Ridge National Laboratory

Keywords

Disruption
Mitigation
Pellet
Plasma
Shattered

UN SDGs

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

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10.1016/j.fusengdes.2020.111535

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title = "Deployment of multiple shattered pellet injection systems in KSTAR",

abstract = "Shattered pellet injection is of the most attractive way to mitigate the plasma disruption in fusion research facilities up to now. DIII-D has already utilized it and achieved very positive results. ITER has decided to adopt this technology for the DMS (disruption mitigation system) for PFPO-1 (Pre-Fusion Power Operation phase 1). The validation between simulation code and experiment, and continuous engineering development need to be carried out to meet the DMS's requirement and reliability. KSTAR (Korea Superconducting Tokamak Advanced Research) is a possible candidate to test the urgent issues of plasma disruption for ITER. KSTAR can install two injectors in toroidal opposite positions. For this work, ORNL (Oak Ridge National Laboratory) will provide the two injectors, the shatter tubes and auxiliary systems. NFRI (National Fusion Research Institute) is preparing the infrastructure of a pumping system, control and data acquisition system, and arranging the location of diagnostic and the heating systems. This presentation describes the basic requirements and the engineering challenges to be solved for successful deployment and operation of multiple SPI injectors in 2019.",

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AU - Gebhart, Trey E.

AU - Yun, Sang Won

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AU - Park, Kap Rai

AU - Yoon, Si Woo

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Deployment of multiple shattered pellet injection systems in KSTAR

Abstract

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Keywords

UN SDGs

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