27th IEEE Symposium on Fusion Engineering

Session

W.OA2: Divertors and PFCs: Liquid Metals

W.OA2

7 Jun 2017, 10:40

Marriott Shanghai City Center

528. A Review of Recent Studies on Liquid Metal Plasma-Facing Components

Prof. Yoshi Hirooka (National Institute for Fusion Science and Graduate University for Advanced Studies)

07/06/2017, 10:40

Plasma facing components

Invited Oral

Power and particle handling in the plasma edge region is one of the key issues, affecting the successful operation of a steady state magnetic fusion power reactor. Tungsten has widely been used for plasma-facing components in existing fusion experiments and is envisaged to be employed for the ITER divertor, perhaps with seeded impurity for radiation detachment. Unfortunately, conventionally...

93. Recent results of Li experiments in EAST with W divertor

Guizhong Zuo (Institute of Plasma Physics CAS)

07/06/2017, 11:00

Plasma-material interactions, plasma edge physics

Invited Oral

In EAST, Li applications with various methods have been systemically developed and significantly improve plasma performance, such as Li evaporation for suppressing impurity radiation and reducing hydrogen recycling [1], Li dropper for 18s ELM-suppressed H-mode discharges [2], Li granule injection for ELM pacing [3], and flowing liquid Li limiter (FLiLi) for improved performance plasma and...

517. Testing Liquid Metal/Capillary Porous System Concepts as alternative solution for the Divertor target design of a Fusion Reactor in TJ-II.

Prof. Francisco Tabares (CIEMAT)

07/06/2017, 11:20

Plasma facing components

Invited Oral

The use of liquid metals as plasma facing components (PFCs) in a future fusion reactor has been proposed as an alternative to solid metals, such as tungsten and molybdenum among others [1]. The expected advantages for the power exhaust issues, mainly arising at the divertor target at power densities of 10– 20 MWm−2, relay on the self-healing properties of liquid surfaces as well as the ability...

478. Synergies in Liquid Metal Technology Development for Divertor Applications*

Dr Robert Kaita (Princeton Plasma Physics Laboratory)

07/06/2017, 11:40

Divertors and high heat flux components

Invited Oral

The difficulties with solid divertors for power handling in future reactors have long been recognized. In response to this challenge, the US initiated research into liquid metals as an alternative under the Advanced Power Extraction (APEX) program.[1] To study the behavior of liquid metals with a large free surface in the presence of tokamak fields, a fully-toroidal Liquid Lithium Limiter...

196. Investigation of an upgraded flowing liquid lithium limiter for higher performance plasmas in tungsten divertor in EAST

Dr Guizhong Zuo (Institue of Plasma Physics, Chinese Academy of Sciences)

07/06/2017, 12:00

Plasma-material interactions, plasma edge physics

Oral

Flowing liquid Li (FLiLi) used as plasma facing components (PFCs) promises to improve plasma performance due to reduced fuel recycling and impurity generation[1]. Various static and flowing liquid Li limiter have been tested in HT-7 and EAST, and significant progress has been achieved from the first FLiLi limiter based on the concept of a thin flowing film in the EAST device in 2014[2]. First...

486. Advancement of LiMIT and Associated Technologies

Matthew Szott (University of Illinois at Urbana-Champaign)

07/06/2017, 12:20

Plasma facing components

Oral

Liquid metal plasma facing components (PFCs) provide several advantages over standard solid PFCs, as the constantly refreshing, self-healing surface reduces erosion and thermal stress, decreases edge recycling, reduces impurities, and enhances plasma performance. The Liquid Metal Infused Trench (LiMIT) system, pioneered at UIUC and tested in HT-7 and Magnum PSI, has demonstrated the...