Behavior of core exit temperature noise RMS in PWRs

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6887524

Sweeney, F J

Temperature noise measurements were performed at a commercial PWR and the Loss of Fluid Test Facility (LOFT) reactor under varying power levels and core coolant flow rates, producing different core ..delta..Ts. The temperature noise RMS (over the frequency range from 0.1 to 1.0 Hz) is a linear function of core ..delta..T for the commercial PWR. The data encompass a range of 2.8 to 100% power at constant flow. The temperature noise RMS at LOFT is also a linear function of core ..delta..T as shown in Fig. 2. The LOFT data included power levels from 27 to 100% and flow rates from 65 to 100%. Over these ranges of operating conditions the temperature noise RMS was independent of the coolant flow rate. For a given core ..delta..T, the temperature noise RMS is approx. 3 times greater for LOFT than for the commercial PWR.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6887524
• Report Number(s): CONF-821103-41; ON: DE83003407
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
LOFT REACTOR
MEASURING INSTRUMENTS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR CORES
REACTOR NOISE
REACTORS
RESEARCH AND TEST REACTORS
TANK TYPE REACTORS
TEST REACTORS
THERMOCOUPLES
WATER COOLED REACTORS
WATER MODERATED REACTORS