The High Aspect Ratio Design (HARD): A candidate ITER concept with improved technology phase performance
- eds.
The High Aspect Ratio Design (HARD) International Thermonuclear Experimental Reactor (ITER) concept developed by the US ITER team is an alternate to the low-aspect-ratio ITER design developed by the ITER participants during the Conceptual Design Activity (CDA). The CDA design, referred to hereafter as ITER CDA, has an aspect ratio, A, of 2.79, a toroidal magnetic field, B[sub T], of 4.85 T, and a plasma current, I[sub p], of 22 MA for operation with an ignited plasma. In contrast, HARD employs higher aspect ratio, A = 4.0, higher toroidal field, B[sub T] = 7.11 T, and lower plasma current, I[sub p] = 14.8 MA for ignition operation. The cross sections of the two designs are compared in. The parameters and performance of HARD and ITER CDA for inductively driven ignition operation are compared in. The HARD parameters provide the same ignition performance (ignition margin evaluated against ITER-89P confinement scaling) as ITER CDA in a device with comparable size and cost. However, the reason for advancing HARD rather than ITER CDA as the ITER design concept is not inductively driven ignition performance but HARD's significantly enhanced potential to achieve the technology testing and steady-state operation goals of the ITER objectives with non-inductive current drive.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48; AC05-84OR21400; AC02-76CH03073
- OSTI ID:
- 6932989
- Report Number(s):
- DOE/ER-ITER-0003; ITER/US-92/EN-SD-01; ON: DE93003281
- Country of Publication:
- United States
- Language:
- English
Similar Records
The effect of the high-aspect-ratio design parameters on ITER containment structures
The International Thermonuclear Experimental Reactor (ITER) at high aspect ratio: Is it time to consider a change for the engineering design activity