Impurities in rock-salt: consequences for the temperature increases at the disposal of high-level nuclear waste. [Kainite, Kieserite]
In part A the thermal properties of halite and the other materials occurring in rock-salt (the 'impurities') are collected. Except for sylvite (the specific heat of this salt is about 70% of the value for halite) all specific heats are larger than the specific heat of halite. The consequences for the temperature increases at the disposal of high-level nuclear waste in rock-salt are discussed for impurity concentrations of 1, 5, 10 and 15%. If the presence and distribution of the impurities are not taken into account, then - under the most unfavorable conditions - extra temperature increases of about 3% per cent impurity may occur. If, however, the geological composition and its geometry for the disposal region are known, the temperature increases can be calculated more accurately: they may or may not differ from those for pure halite. In part B the measurement of the thermal conductivity for four salts (kainite, kieserite, carnallite, and polyhalite) is described.
- Research Organization:
- Technische Hogeschool Delft (Netherlands)
- OSTI ID:
- 6508826
- Report Number(s):
- PB-83-102087; TRN: 83-005038
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CARNALLITE
THERMAL CONDUCTIVITY
POLYHALITE
SPECIFIC HEAT
RADIOACTIVE WASTE DISPOSAL
SALT DEPOSITS
IMPURITIES
TEMPERATURE EFFECTS
SALTS
HIGH-LEVEL RADIOACTIVE WASTES
THERMAL ANALYSIS
UNDERGROUND DISPOSAL
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CHLORIDES
CHLORINE COMPOUNDS
GEOLOGIC DEPOSITS
HALIDE MINERALS
HALIDES
HALOGEN COMPOUNDS
MAGNESIUM CHLORIDES
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
MANAGEMENT
MATERIALS
MINERALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POTASSIUM SULFATES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
THERMODYNAMIC PROPERTIES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
360603 - Materials- Properties