ZTI: An ignition class reversed-field pinch
A cost-optimized conceptual design of an intermediate-step, ignition-class RFP device (ZTI)for the study of alpha-particle physics and burn control in a DT plasma is reported. With major and minor plasma radii R{sub T} = 2.4m and {tau}{sub p} = 0.4m, respectively, and for conservative extrapolations of experimental energy-confinement times, ion-density profiles, and impurity levels, the ZTI operating conditions during a 5-s period of constant fusion power are: toroidal plasma current I{sub {phi}} {approx equal} 9 MA, plasma temperature T {approx equal} 11 keV, plasma density n{sub i} {approx equal} 3 {times} 10{sup 20} m{sup {minus}3}, fusion power P{sub F} {approx equal} 100 MW, and physics Q-value Q{sub p} {approx equal} 5 for a total machine size that corresponds to P{sub F}/M{sub FPC} {approx equal} 590 kW/tonne. This physics design point was adopted as a strawman'' with which to examine the requirements of ohmic heating to DT ignition and to perform a cost-optimized magnetics design. The ZTl design reflects potentially significant cost savings relative to similar ignition-class tokamaks for device parameters that reside on the path to a viable commercial RFP reactor. The methodology and results of coupling realistic physics, engineering, and cost models through a multi-dimensional optimizer are reported for this device that would follow the 2-4 MA ZTH presently under construction.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6780447
- Report Number(s):
- LA-UR-90-2938; CONF-900918-9; ON: DE91000447; TRN: 91-000089
- Resource Relation:
- Conference: 16. symposium on fusion technology, London (UK), 3-7 Sep 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
REVERSE-FIELD PINCH
DESIGN
ALPHA PARTICLES
CONFINEMENT TIME
COST BENEFIT ANALYSIS
COST ESTIMATION
JOULE HEATING
SPECIFICATIONS
CHARGED PARTICLES
ELECTRIC HEATING
HEATING
PINCH EFFECT
PLASMA HEATING
RESISTANCE HEATING
700200* - Fusion Energy- Fusion Power Plant Technology