Thermal radiation properties were investigated by a spectral experiment on three kinds of molten alkali metal chlorides: lithium chloride, sodium chloride, and potassium chloride. Reflectance spectra of the salt layers were measured in the wavelength region from 0.5 to 13.0 μm. The transparent and the semi-transparent absorbing regions of the salts were found to cover the entire wavelength region of the Planckian distribution. The results were analyzed to evaluate the spectra of the refractive index and absorption coefficient. Conductive-radiative energy transfer through the molten salts was computed on simple engineering systems, using lithium chloride and lithium nitrate, in order to demonstrate the significant contribution of radiative heat transfer.
|Number of pages
|Heat Transfer - Japanese Research
|Published - 1991
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes