Temperature given in eV instead of keV or K in 3 files.

[OceanNuclear]

Describe the papercut

When plasma temperature is specified in non-SI unit, it's almost always given as [keV]; except for 3 files:

• bluemira.codes.process._solver.get_species_data outputs temperature tref in eV.
• bluemira.plasma_physics.rules_of_thumb.estimate_loop_voltage takes in electron temperature on axis T_e in eV.
• bluemira.plasma_physics.collisions.spitzer_conductivity takes in electron temperature on axis T_e in eV.

Suggested fix

Convert all of the above from eV to keV instead, using bluemira.base.constants.raw_uc when appropriate.

Other modules affected/ dependencies

No other modules affected.
bluemira.plasma_physics.rules_of_thumb.estimate_loop_voltage uses bluemira.plasma_physics.collisions.spitzer_conductivity.