säteilyhäviöt
Säteilyhäviöt, or radiative losses, refer to the energy that a system emits as radiation rather than converting it into useful work or maintaining it as internal energy. In the context of thermodynamics, radiant heat transfer can be significant in high‑temperature systems such as furnaces, combustion chambers, and molten salts. The amount of heat radiated is described by the Stefan–Boltzmann law, where the power emitted is proportional to the fourth power of temperature and the emissivity of the material’s surface. Materials with low emissivity coatings can therefore reduce radiative heat loss.
In electrical engineering, radiative losses appear in high‑frequency circuits, antennas, and power electronics. Radiators and heat
Within nuclear reactors, radiative losses occur in the reactor core and containment structures due to neutron
Mitigation strategies include the use of high‑reflectivity coatings, thermal insulation, radiation‑hard materials, and active cooling systems.