Thermometry in the multirod burst test program. [PWR; BWR]

Technical Report · Mon Mar 01 04:00:00 EST 1982

OSTI ID:5344068

Anderson, R L; Carr, K R; Kollie, T G

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

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