Thermal utilization factor from macroscopic absorption cross sections

Thermal utilization factor can be found using the macroscopic absorption cross section in the fuel and the total macroscopic absorption cross section in the reactor.

Links:

1. ScienceDirect.

2. NuclearPower.

3. Wikipedia, second row in table.

macroscopic_fuel_absorption_cross_section

macroscopic_cross_section of absorption in the fuel.

Symbol:

Sigma_af

Latex:

\(\Sigma_\text{a}^\text{f}\)

Dimension:

1/length

macroscopic_total_absorption_cross_section

Total macroscopic_cross_section of absorption.

Symbol:

Sigma_a

Latex:

\(\Sigma_\text{a}\)

Dimension:

1/length

thermal_utilisation_factor

thermal_utilization_factor.

Symbol:

f

Latex:

\(f\)

Dimension:

dimensionless

law

f = Sigma_af / Sigma_a

Latex:

\[f = \frac{\Sigma_\text{a}^\text{f}}{\Sigma_\text{a}}\]