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U.S. Department of Energy
Office of Scientific and Technical Information

Multirod burst test program. Quarterly progress report, October--December 1975. [BWR; PWR]

Technical Report ·
DOI:https://doi.org/10.2172/7359468· OSTI ID:7359468

Internally pressurized unirradiated Zircaloy tubes containing tubular electric heaters (to simulate nuclear fuel pellet heating) will be tested to failure in a low-pressure superheated-steam environment. These assemblies will be heated over a 915-mm (approximately 36-in.) length at a constant rate of 28/sup 0/C/sec (50/sup 0/F); differential pressures will range from about 700 to 14,000 kPa (100 to 2000 psi), corresponding to approximate rupture temperatures from 1200 to 700/sup 0/C (2200 to 1300/sup 0/F). In addition to measurements of cladding surface temperature and internal pressure during the transient test, data will be obtained on pre- and post-test flow resistance (for the multirod arrays) and on deformation, rupture strain, and channel blockage (as measured by sectioning of tubes and tube bundles). Progress made on design and construction of components and systems, development tests and evaluations, and procurement of long delivery items are summarized. Preliminary results of single-rod tests are presented.

Research Organization:
Oak Ridge National Lab., Tenn. (USA)
Sponsoring Organization:
ERDA
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7359468
Report Number(s):
ORNL/NUREG/TM-10
Country of Publication:
United States
Language:
English