Surface heat flux perturbations in BDHT fuel pin simulators. [PWR]
Technical Report
·
OSTI ID:6168825
The perturbation is quantified for the surface heat flux and surface temperature in blowdown heat transfer (BDHT) bundle 1 fuel pin simulators due to the presence of the thermocouple and groove, gaps, heater eccentricity, and power zone breaks. Steady-state and transient-case studies are presented to illustrate the azimuthal and axial variations in the surface conditions. The conceptual designs of BDHT bundle 3 fuel pin simulators are also evaluated. Recommendations are made for improvements in the heater designs and for the development of computer codes to analyze the responses of the heater thermocouples.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6168825
- Report Number(s):
- NUREG/CR-0610; ORNL/NUREG-54
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BLOWDOWN
ENERGY TRANSFER
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FUEL PINS
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LOSS OF COOLANT
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
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210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BLOWDOWN
ENERGY TRANSFER
FUEL ELEMENTS
FUEL PINS
HEAT FLUX
HEAT TRANSFER
LOSS OF COOLANT
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR SAFETY
REACTORS
SAFETY
SIMULATION
TEMPERATURE DISTRIBUTION
TEST FACILITIES
WATER COOLED REACTORS
WATER MODERATED REACTORS