Counter-current flow limited CHF in thin rectangular channels
Conference
·
OSTI ID:6120767
An analytical expression for counter-current-flow-limitation (CCFL) was used to predict critical heat flux (CHF) for downward flow in thin vertical rectangular channels which are prototypes of coolant channels in test and research nuclear reactors. Top flooding is the mechanism for counter-current flow limited CHF. The CCFL correlation also was used to determine the circulation and flooding-limited CHF. Good agreements were observed between the period the model predictions and data on the CHF for downflow. The minimum CHF for downflow is lower than the flooding-limited CHF and it is predicted to occur at a liquid flow rate higher than that at the flooding limit. 17 refs., 7 figs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6120767
- Report Number(s):
- BNL-45355; CONF-910318--10; ON: DE91004755
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
CONFIGURATION
CRITICAL HEAT FLUX
FLOW MODELS
FLOW RATE
FLUID FLOW
HEAT FLUX
MATHEMATICAL MODELS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTORS
RECTANGULAR CONFIGURATION
RESEARCH AND TEST REACTORS
VOID FRACTION
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
CONFIGURATION
CRITICAL HEAT FLUX
FLOW MODELS
FLOW RATE
FLUID FLOW
HEAT FLUX
MATHEMATICAL MODELS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTORS
RECTANGULAR CONFIGURATION
RESEARCH AND TEST REACTORS
VOID FRACTION