Units for nuclear fuel burnup
Learning Objectives
- Recognize and convert units for nuclear fuel burnup
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Units for nuclear fuel burnup
The most common units for nuclear fuel burnup are $MW_{th}d/tonne$. A burnup
of $5 MW_{th}d/tonne$ would describe a fuel that has operated at some power
level over a period of time. For example,
- $1 MW_{th}/tonne$ for 5 days,
- $5 MW_{th}/tonne$ for 1 day, or
- $25 MW_{th}/tonne$ for 0.2 days.
Since specific power may be measured in other units, these could also be
written as:
- $1 W_{th}/g$ for 5 days,
- $5 W_{th}/g$ for 1 day, or
- $25 W_{th}/g$ for 0.2 days.
Assessments
Units for nuclear fuel burnup
The most common units for nuclear fuel burnup are $MW_{th}d/tonne$. A burnup of $5 MW_{th}d/tonne$ would describe a fuel that has operated at some power level over a period of time. For example,
- $1 MW_{th}/tonne$ for 5 days,
- $5 MW_{th}/tonne$ for 1 day, or
- $25 MW_{th}/tonne$ for 0.2 days.
Since specific power may be measured in other units, these could also be written as:
- $1 W_{th}/g$ for 5 days,
- $5 W_{th}/g$ for 1 day, or
- $25 W_{th}/g$ for 0.2 days.