You need JavaScript to view this

Power and momentum relations in rotating magnetic field current drive

Journal Article:

Abstract

The use of rotating magnetic fields (RMF) to drive steady currents in plasmas involves a transfer of energy and angular momentum from the radio frequency source feeding the rotating field coils to the plasma. The power-torque relationships in RMF systems are discussed and the analogy between RMF current drive and the polyphase induction motor is explained. The general relationship between the energy and angular momentum transfer is utilized to calculate the efficiency of the RMF plasma current drive. It is found that relatively high efficiencies can be achieved in RMF current drive because of the low phase velocity and small slip between the rotating field and the electron fluid.
Authors:
Hugrass, W N [1] 
  1. Flinders Univ. of South Australia, Bedford Park. School of Physical Sciences
Publication Date:
Jan 01, 1984
Product Type:
Journal Article
Reference Number:
AIX-16-015872; EDB-85-100066
Resource Relation:
Journal Name: Aust. J. Phys.; (Australia); Journal Volume: 37:5
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CURRENT-DRIVE HEATING; EFFICIENCY; ANGULAR MOMENTUM TRANSFER; ELECTRIC CURRENTS; ENERGY TRANSFER; MAGNETIC FIELDS; PHASE VELOCITY; PLASMA; RADIOWAVE RADIATION; RF SYSTEMS; ROTATION; TORQUE; CURRENTS; ELECTRIC HEATING; ELECTROMAGNETIC RADIATION; HEATING; JOULE HEATING; MOMENTUM TRANSFER; MOTION; PLASMA HEATING; RADIATIONS; RESISTANCE HEATING; VELOCITY; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production
OSTI ID:
5545746
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: AUJPA
Submitting Site:
HEDB
Size:
Pages: 509-519
Announcement Date:
Feb 01, 1985

Journal Article:

Citation Formats

Hugrass, W N. Power and momentum relations in rotating magnetic field current drive. Australia: N. p., 1984. Web.
Hugrass, W N. Power and momentum relations in rotating magnetic field current drive. Australia.
Hugrass, W N. 1984. "Power and momentum relations in rotating magnetic field current drive." Australia.
@misc{etde_5545746,
title = {Power and momentum relations in rotating magnetic field current drive}
author = {Hugrass, W N}
abstractNote = {The use of rotating magnetic fields (RMF) to drive steady currents in plasmas involves a transfer of energy and angular momentum from the radio frequency source feeding the rotating field coils to the plasma. The power-torque relationships in RMF systems are discussed and the analogy between RMF current drive and the polyphase induction motor is explained. The general relationship between the energy and angular momentum transfer is utilized to calculate the efficiency of the RMF plasma current drive. It is found that relatively high efficiencies can be achieved in RMF current drive because of the low phase velocity and small slip between the rotating field and the electron fluid.}
journal = {Aust. J. Phys.; (Australia)}
volume = {37:5}
journal type = {AC}
place = {Australia}
year = {1984}
month = {Jan}
}