Yankee Rowe general data and assumptions.
|Rod outside diameter (cm)||0.864||[1,12]|
|Cladding thickness (cm)||0.053||[1,12]|
|Gap size (diametral) (cm)||0.011||[1,12]|
|Fuel rod pitch (cm)||1.153||[1,12]|
|Fuel pellet diameter (cm)||0.747||[1,12]|
|Fuel pellet density (%)||93|||
|Fill gas internal rod pressure (MPa)||0.1||The fuel rod is not pressurized |
|Active fuel length (cm)||229.9|||
|Concentration of the gas components at the beginning of the calculation||0.8 N2
|The fuel rod is not pressurized, then it was considered the air composition |
|U235 enrichment degree (%)||3.4||[1,12]|
|Free volume in the upper plenum available for filling gas and fission gas (cm3)||4.359||The plenum height assumption considered a conservative value taking into account the fuel stack height|
|Coolant flow rate (g h–1)||7.86 × 105|||
|Coolant temperature (°C)||252||[1,12]|
|Coolant pressure (MPa)||14||[1,12]|
|Average LHGR (kW m–1)||11.4||Average rod power given in the literature for the Yankee Rowe fuel rods [1,12]|
|Design LHGR (kW m–1)||35.3||Design rod power given in the literature for the Yankee Rowe fuel rods [1,12]|
|Maximum cladding temperature surface (°C)||343||[1,12]|
|Average burnup (MWd tU–1)||31000||[1,12]|
|Neutron flux (cm–2 s–1)||6.3 × 1013||Average assumed value to achieve the final fluence level and burnup [1,12]|
|Final fluence level (n cm–2)||6 × 1021||[1,12]|
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