Burnup rate and Consumption rate

[The Prince]

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 ?!

 

[Astronuc]

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.