Thermometry in the multirod burst test program. [PWR; BWR]
A temperature measurement error analysis was performed for the Type S (0.25-mm-diam, bare-wire) and Type K (0.71-mm-diam, sheathed) thermocouple circuits used to measure the temperature of the Zircaloy-clad, electrically heated fuel-rod simulators in the Multirod Burst Test program (MRBT) at Oak Ridge National Laboratory (ORNL). An important objective of the MRBT program is to improve the understanding of the behavior of the Zircaloy cladding of nuclear fuel rods under conditions postulated for a large-break, loss-of-coolant accident. Eight categories of error sources were studied both analytically and experimentally: thermal shunting; electrical shuntng and leakage; thermocouple calibration; thermocouple decalibration in service; thermoelectric properties of thermocouple extension wire, plugs, and jacks; thermocouple reference junction; data acquisition system; and electrical noise.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5344068
- Report Number(s):
- NUREG/CR-2470; ORNL/TM-8024; ON: DE82014692
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental coaxial molybdenum--Zircaloy fuel rod cladding surface thermocouple. [PWR; BWR]
Multirod burst test program quarterly progress report, July--September 1976. [BWR; PWR]
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22 GENERAL STUDIES OF NUCLEAR REACTORS
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ACCIDENTS
ACCURACY
FUEL CANS
FUEL ELEMENT FAILURE
FUEL ELEMENTS
FUEL RODS
LOSS OF COOLANT
MEASURING INSTRUMENTS
PERFORMANCE
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
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TEST FACILITIES
THERMAL STRESSES
THERMOCOUPLES
WATER COOLED REACTORS
WATER MODERATED REACTORS