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Abstract

Two large vertical shaft flywheel generators each provides the JET device with peak power up to 400 MW and energy up to 2600 MJ per pulse to induce and confine the multi mega-ampere plasma current. The integrated rotor flywheel consists of a 650 tonnes/10 m diameter rim carrying the poles of the machine. The energy is stored kinetically during a 9 minute interval of acceleration from half speed to full speed and then released during a 20 s long deceleration. A design life of 100,000 cycles at full energy rating was specified. Following a review of the mechanical design and construction of the generators, the paper will concentrate on the assessment of the stresses and fatigue life of the rotor system, its dynamic behaviour (rim movement, critical speed and balancing) and on the performance in operation of the large thrust bearing.

Additional information

Authors: HUART M, JET JOINT UNDERTAKING, ABINGDON (UK);SONNERUP L JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: SEMINAR ON THE MECHANICAL ENGINEERING ASPECTS OF THE JOINT EUROPEAN TORUS, HELD AT THE INSTITUTION OF MECHANICAL ENGINEERS, LONDON (UK), NOV. 13, 1984 PP. 4-1 - 4-12 WRITE TO THE PUBLICATIONS OFFICER,JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK), M
Record Number: 1989125014700 / Last updated on: 1987-02-01
Category: PUBLICATION
Available languages: en