TEMPERATURE STRUCTURE IN THE GAS COOLED REACTOR FUEL ELEMENTS USING A SCALLOPED COOLANT CHANNEL

Technical Report · Mon Mar 16 04:00:00 EST 1959

DOI:https://doi.org/10.2172/4277286· OSTI ID:4277286

Epel, L G

An analysis of the temperature structure in the GCR2 fuel elements and coolant stream at the position where the maximum fuel element surface temperature exists was presented in a previous paper (CF-58-5-97). It was felt that the peripheral temperature variation existing on the fuel rods as brought out in that analysis was due mainly to the poor flow distribution of the coolant with respect to the heat flux. The most expedient way to alleviate this situation without changing the fuel element assembly itself is to scallop the channel so that it becomes, in effect, seven channels merged together to form a single passage. This geometry was studied by use of the IBM 704 digital computer in much the same way the earlier problems were investigated. Since the heat transfer coefficient depends much more strongly on free flow area than on equivalent diameter, the free flow area of the model reported on was made equal to that of the 3.25 in. circular channel so that a comparison of the results of the two configurations would be meaningful.(auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-13-011487
• OSTI ID: 4277286
• Report Number(s): CF-59-3-39
• Country of Publication: United States
• Language: English

Related Subjects

COMPUTERS
CONFIGURATION
COOLANT LOOPS
DISTRIBUTION
FUEL ELEMENTS
GAS COOLANT
GAS FLOW
GCRE-2
HEAT TRANSFER
IBM 704
NUMERICALS
REACTORS
RODS
SURFACES
TEMPERATURE
VOLUME