LOFT core simulator orifice size
Description
A flow resistance is to be placed in the core region of the LOFT reactor vessel during the nonnuclear blowdown tests in order to simulate the resistance of the fuel assemblies and upper structure. The resistance is to be achieved through the use of the flushing filter assembly which will be installed in place of the core prior to reactor startup. The filters in the assembly will be removed, and orificed flow caps sized to give the desired flow resistance and an instrument stalk will be installed. Based on the most recent data on reactor flow resistance, the inside diameter of the orifices was calculated to be 3.35 inches. Therefore, replacing the eight filters with seven orifice flow caps with inner diameters of 3.35 inches and one instrument stalk will simulate the hydraulic resistance of the fuel assemblies and upper structure
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01.
Files
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Additional details
Publishing Information
- Imprint Pagination
- 44 p.
- Report number
- TID--27595
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 8335319
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- FLOW REGULATORS; LOFT REACTOR; ORIFICES; REACTOR CORES; SIMULATION; SIZE
- Descriptors DEC
- CONTROL EQUIPMENT; OPENINGS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; TANK TYPE REACTORS; TEST REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS