Heat transfer in underground heating experiments in granite, Stipa, Sweden
Electrical heater experiments have been conducted underground in granite at Stripa, Sweden, to investigate the effects of heating associated with nuclear waste storage. Temperature data from these experiments are compared with closed-form and finite-element solutions. Good agreement is found between measured temperatures and both types of models, but especially for a nonlinear finite-element heat conduction model incorporating convective boundary conditions, measured nonuniform initial rock temperature distribution, and temperature-dependent thermal conductivity. In situ thermal properties, determined by least-squares regression, are very close to laboratory values. A limited amount of sensitivity analysis is undertaken.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5114284
- Report Number(s):
- LBL-10876; CONF-801102-17; TRN: 80-016625
- Resource Relation:
- Conference: ASME winter annual meeting, Chicago, IL, USA, 16 Nov 1980
- Country of Publication:
- United States
- Language:
- English
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Determination of in-situ thermal properties of Stripa granite from temperature measurements in the full-scale heater experiments: method and preliminary results. Technical information report No. 24
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Related Subjects
58 GEOSCIENCES
GRANITES
HEAT TRANSFER
RADIOACTIVE WASTE DISPOSAL
GEOLOGIC DEPOSITS
HEATERS
SWEDEN
THERMODYNAMIC PROPERTIES
UNDERGROUND DISPOSAL
ENERGY TRANSFER
EUROPE
IGNEOUS ROCKS
MANAGEMENT
PHYSICAL PROPERTIES
PLUTONIC ROCKS
ROCKS
SCANDINAVIA
WASTE DISPOSAL
WASTE MANAGEMENT
WESTERN EUROPE
052002* - Nuclear Fuels- Waste Disposal & Storage
580300 - Mineralogy
Petrology
& Rock Mechanics- (-1989)