NDLI: Investigation of electrothermal plasma pellet launcher optimization for fusion fueling

Content Provider	IEEE Xplore Digital Library
Author	Esmond, M. J. Mostaghim, S. S. Gebhart, T. E. Winfrey, A. L.
Copyright Year	2014
Description	Author affiliation: Virginia Tech, Nuclear Engineering Program, USA (Esmond, M. J.; Mostaghim, S. S.; Gebhart, T. E.; Winfrey, A. L.)
Abstract	Deep fueling for large-scale tokamak fusion reactors requires the use of high-velocity fuel pellet injectors. The fuel pellets consist of deuterium or deuterium-tritium ice. Electrothermal plasma guns can be used to launch fuel pellets into the fusion plasma at a range of velocities. The plasma guns can be used to launch pellets at the velocities required for fusion reactor deep fueling or for the control of edge localized modes. Electrothermal plasma guns use a capillary tube where plasma is sparked, called the source, and an acceleration barrel. The plasma is sparked inside the source using a capacitor bank that is charged to 10 kV. A liner material inside the source is ablated and forms plasma that draws up to 40 kA of current over 100 microseconds and can propel a pellet to velocities exceeding 3 km/s. Using a one dimensional computer code called ETFLOW, a variety of computational predictions can be made on the plasma as well as the pellet as it moves through the barrel. Using this code, different geometric configurations of the source have been simulated using an input current pulse with a current peak of approximately 20 kA. The geometries studied varied in source length and source radius. To compliment these studies, the same geometries have been simulated with different input current pulses. These input current pulses have maximum currents of 10 kA, 30 kA, and 40 kA. The results from all four current pulses are presented, and computed pellet velocities are correlated to source geometry and plasma parameters. Pellet exit velocities of up to 4.4 km/s were computed. This is an increase of 10% from previous computational studies.
Starting Page	1
Ending Page	4
File Size	1324376
Page Count	4
File Format	PDF
ISBN	9781479927111
e-ISBN	9781479927135
DOI	10.1109/PLASMA.2014.7012717
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Heating Weapons Acceleration Discharges (electric) Plasma sources
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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