Experimental determination of the thermal diffusivity of molten alkali halides by the forced Rayleigh scattering method. I. Molten LiCl, NaCl, KCl, RbCl, and CsCl
Journal Article
·
· International Journal of Thermophysics; (United States)
- Keio Univ., Yioshi, Yokohama (Japan)
As a series of experimental determinations of the thermal diffusivity of molten alkali halides, this paper describes measurements on five molten alkali metal chlorides (LiCl, NaCl, KCl, RbCl, and CsCl) in the temperature range up to 1440 K by the forced Rayleigh scattering method. K[sub 2]Cr[sub 2]O[sub 7] is employed as a dye substance to color the transparent molten salts. In comparison with the present results converted into thermal conductivity, most of the previous experimental data obtained by steady-state methods show larger values, up to about five times, which may be due to the systematic error caused by the presence of convection and radiation. It is found that the thermal conductivity of these series of molten alkali metal chlorides decreases with increasing molecular weight, and their temperature coefficients are weakly negative. 24 refs., 9 figs., 6 tabs.
- OSTI ID:
- 5984802
- Journal Information:
- International Journal of Thermophysics; (United States), Journal Name: International Journal of Thermophysics; (United States) Vol. 13:4; ISSN 0195-928X; ISSN IJTHDY
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200 -- Inorganic
Organic
& Physical Chemistry
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
DATA
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
MOLTEN SALTS
NUMERICAL DATA
PHYSICAL PROPERTIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
RAYLEIGH SCATTERING
RUBIDIUM CHLORIDES
RUBIDIUM COMPOUNDS
SALTS
SCATTERING
SODIUM CHLORIDES
SODIUM COMPOUNDS
TEMPERATURE DEPENDENCE
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES
360606* -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200 -- Inorganic
Organic
& Physical Chemistry
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
DATA
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
MOLTEN SALTS
NUMERICAL DATA
PHYSICAL PROPERTIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
RAYLEIGH SCATTERING
RUBIDIUM CHLORIDES
RUBIDIUM COMPOUNDS
SALTS
SCATTERING
SODIUM CHLORIDES
SODIUM COMPOUNDS
TEMPERATURE DEPENDENCE
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES