Experimental results of direct containment heating by high-pressure melt ejection into the Surtsey vessel: The DCH-3 and DCH-4 tests

Two experiments, DCH-3 and DCH-4, were performed at the Surtsey test facility to investigate phenomena associated with a high-pressure melt ejection (HPME) reactor accident sequence resulting in direct containment heating (DCH). These experiments were performed using the same experimental apparatus...

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Bibliographic Details
Main Authors: Allen, M.D., Pilch, M., Brockmann, J.E., Tarbell, W.W. ), Nichols, R.T. ), Sweet, D.W. )
Language:unknown
Published: 2008
Subjects:
22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
REACTOR VESSELS
PWR TYPE REACTORS
AEROSOLS
BLOWDOWN
C CODES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMPUTER CALCULATIONS
CONTAINMENT
CONTAINMENT SYSTEMS
CORIUM
DATA ACQUISITION
EXPERIMENT PLANNING
EXPERIMENTAL DATA
GAS ANALYSIS
HEAT TRANSFER
HEATING
HYDRAULICS
HYDROGEN
IRON
K CODES
OXIDATION
OXYGEN
PARTICLE SIZE
PRESSURE MEASUREMENT
PRESSURIZATION
REACTOR ACCIDENTS
REACTOR COOLING SYSTEMS
REACTOR INSTRUMENTATION
REACTOR SAFETY
TEMPERATURE MEASUREMENT
TEST FACILITIES
ACCIDENTS
COLLOIDS
COMPUTER CODES
CONTAINERS
COOLING SYSTEMS
DATA
DISPERSIONS
ELEMENTS
ENERGY SYSTEMS
ENERGY TRANSFER
ENGINEERED SAFETY SYSTEMS
ENRICHED URANIUM REACTORS
FLUID MECHANICS
INFORMATION
KINETICS
Surtsey
Online Access:http://www.osti.gov/servlets/purl/5081015
https://www.osti.gov/biblio/5081015
https://doi.org/10.2172/5081015
Description
Summary:Two experiments, DCH-3 and DCH-4, were performed at the Surtsey test facility to investigate phenomena associated with a high-pressure melt ejection (HPME) reactor accident sequence resulting in direct containment heating (DCH). These experiments were performed using the same experimental apparatus with identical initial conditions, except that the Surtsey test vessel contained air in DCH-3 and argon in DCH-4. Inerting the vessel with argon eliminated chemical reactions between metallic debris and oxygen. Thus, a comparison of the pressure response in DCH-3 and DCH-4 gave an indication of the DCH contribution due to metal/oxygen reactions. 44 refs., 110 figs., 43 tabs.

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