Burnup rate and Consumption rate

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    Burnup Rate
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The discussion clarifies the distinction between burnup rate and consumption rate in nuclear fuel terminology. Burnup rate, measured in MWd/kgU or GWd/tU, quantifies the energy produced per unit mass of fuel, and is commonly used by utilities and manufacturers. In contrast, consumption rate refers to the general rate at which fuel is used, but lacks the specific energy context of burnup. European organizations may express burnup in GWd/tUO2, highlighting regional variations in terminology. Understanding these terms is crucial as they relate to fuel performance and material behavior in nuclear applications.
The Prince
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Hey ,

1-What is exactly the difference between the Burnup rate and Consumption rate??

2-Why do most authorities usually use the term of Burnup rate while the consumption rate it seems to be more general ?!
 
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What does one mean by consumption rate?

Burnup (in MWd/kgU or GWd/tU) is the energy per unit mass of fuel. Most utilities and manufacturers/suppliers of nuclear fuel use burnup as a basic unit. Some European organizations use burnup in terms of GWd/tUO2. Many fuel properties and fuel performance have been correlated with burnup. Some metal (cladding, guide tube, . . . ) behavior are correlated to fluence (fast flux integrated over time), which is related to dislocation density or dpa.
 

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