EPRI (Electric Power Research Institute)/ANL investigations of MCCI (molten core-concrete interactions) phenomena and aerosol release
A program of laboratory investigations has been undertaken at Argonne National Laboratory, under sponsorship of the Electric Power Research Institute, in which the interaction between molten core materials and concrete is studied, with particular emphasis on measurements of the magnitude and chemical species present in the aerosol releases. The experiment technique used in these investigations is direct electrical heating in which a high electric current is passed through the core debris to sustain the high-temperature melt condition for potentially long periods of time. In the scoping experiments completed to date, this technique has been successfully used for corium masses of 5 and 20 kg, generating an internal heating rate of 1 kw/kg and achieving melt temperatures of 2000C. Experiments have been performed both with a concrete base and also with a cooled base with the addition of H/sub 2//CO sparging gas to represent chemical processes in a stratified layer. An aerosol and gas sampling system is being used to collect aerosol samples. Test results are now becoming available including masses of aerosols, x-ray diffraction, and scanning electron microscope analyses.
- Research Organization:
- Argonne National Lab., IL (USA); Electric Power Research Inst., Palo Alto, CA (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6439598
- Report Number(s):
- CONF-8609126-4; ON: DE87004984
- Resource Relation:
- Conference: Committee on the Safety of Nuclear Installations (CSNI) specialists' meeting on core debris/concrete interactions, Palo Alto, CA, USA, 3 Sep 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CORE CATCHERS
RADIOACTIVE AEROSOLS
FISSION PRODUCT RELEASE
CHEMICAL REACTIONS
CONCRETES
CONTAINMENT MOCKUP FACILITY
DIAGNOSTIC TECHNIQUES
EQUIPMENT
EROSION
MATERIALS TESTING
MELTDOWN
RADIATION HAZARDS
REACTOR CORES
REACTOR SAFETY EXPERIMENTS
TEST FACILITIES
VERY HIGH TEMPERATURE
ACCIDENTS
AEROSOLS
BUILDING MATERIALS
COLLOIDS
DISPERSIONS
HAZARDS
HEALTH HAZARDS
MATERIALS
REACTOR ACCIDENTS
REACTOR COMPONENTS
SOLS
TESTING
220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents
360604 - Materials- Corrosion
Erosion
& Degradation