Helium-Cooled Refractory Alloys First Wall and Blanket Evaluation
Under the APEX program the He-cooled system design task is to evaluate and recommend high power density refractory alloy first wall and blanket designs and to recommend and initiate tests to address critical issues. We completed the preliminary design of a helium-cooled, W-5Re alloy, lithium breeder design and the results are reported in this paper. Many areas of the design were assessed, including material selection, helium impurity control, and mechanical, nuclear and thermal hydraulics design, and waste disposal, tritium and safety design. System study results show that at a closed cycle gas turbine (CCGT) gross thermal efficiency of 57.5%, a superconducting coil tokamak reactor, with an aspect ratio of 4, and an output power of 2 GWe, can be projected to have a cost of electricity at 54.6 mill/kWh. Critical issues were identified and we plan to continue the design on some of the critical issues during the next phase of the APEX design study.
- Research Organization:
- General Atomics, San Diego, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC03-99ER54463m; W-7405-ENG-36; AC05-96OR22464; AC04-94AL85000; W-31-109-ENG-38
- OSTI ID:
- 766826
- Report Number(s):
- GA-A23177; TRN: US0201004
- Resource Relation:
- Conference: 5th International Symposium on Fusion Nuclear Technology, Rome (IT), 09/19/1999--09/24/1999; Other Information: PBD: 1 Aug 1999
- Country of Publication:
- United States
- Language:
- English
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