MECHANICAL DESIGN OF THE CVTR FUEL ASSEMBLY AND THERMAL BAFFLE. Topical Report
The fuel assembly and thermal baffle design for CVTR had to meet the conflicting requirements of minimum material in the core, and maximum strength and structural integrity. Careful study of several conceptual fuel assembly designs was carried out before a full-length fuel assembly with an integral baffle design and re-useable outer baffles was adopted. Analysis and component testing of clad specimens, prototype fuel rods, spacer wires, and thermal baffles were conducted. Stainless steel prototype assemblies, and finally, Zircaloy prototypes which were nearly identical to the design for in-plant use were built and tested out-of-pile at design temperature and pressure in prototype pressure tubes. A scaled down version of the CVTR pressure tube and fuel assembly was fabricated for in-pile testing. A seven rod Zircaloy fuel assembly and a Zircaloy pressure tube were inserted in the Westinghouse Test Reactor to evaluate the effects of radiation on the materials to be used in the CVTR pressure tube and fuel assembly. (auth)
- Research Organization:
- Westinghouse Electric Corp. Atomic Power Div., Pittsburgh
- NSA Number:
- NSA-16-030057
- OSTI ID:
- 4772325
- Report Number(s):
- CVNA-94
- Country of Publication:
- United States
- Language:
- English
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