Mixing experiments in an alternating wire wrapped assembly
The salt injection experiment was performed in an alternating wire-wrapped, triangular-array bundle to study the coolant mixing behavior pertaining to alternating wrapped wires. Results show that the coolant mixing is much enhanced in the subchannels for this type of bundle compared to the in-phase wire-wrapped bundle currently used in the LMFBR design. A strong interaction between the coolants in the edge and the interior subchannels at four assembly faces (where the alternating wires give 180/sup 0/ out-of-phase configuration) has also been observed. After calibrating the input parameters for the sweeping flow of the COBRA-IIIC/MIT code against this experimental data, the code is employed to predict the coolant temperatures for a skew-powered alternating wire-wrapped blanket assembly. Comparing the code results with the SUPERENERGY code predicted coolant temperature data for an in-phase wrapped assembly under identical operating conditions, it is observed that the hot spot temperature for the alternating wire-wrapped assembly is less than that for the in-phase wire-wrapped bundle by 5 percent (normalized to the hot spot axial temperature rise).
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge (USA)
- DOE Contract Number:
- EY-76-S-02-2245
- OSTI ID:
- 6560478
- Report Number(s):
- COO-2245-54TR
- Country of Publication:
- United States
- Language:
- English
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BREEDER REACTORS
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FAST REACTORS
FBR TYPE REACTORS
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FUEL ASSEMBLIES
FUEL ELEMENT CLUSTERS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MIXING
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SPACERS
TEMPERATURE DISTRIBUTION