Reactor vessel and core two-phase flow ultrasonic densitometer
A local ultrasonic density (LUD) detector has been developed by EG and G Idaho, Inc., at the Idaho National Engineering Laboratory (INEL) for the Loss-of-Fluid Test (LOFT) reactor vessel and core two-phase flow density measurements. The principle of operating the sensor is the change in propagation time of a torsional ultrasonic wave in a metal transmission line as a function of the density of the surrounding media. A theoretical physics model is presented which represents the total propagation time as a function of the sensor modulus of elasticity and polar moment of inertia. Separate effects tests and two-phase flow tests have been conducted to characterize the detector. Tests show the detector can perform in a 343/sup 0/C pressurized water reactor environment and measure the average density of the media surrounding the sensor.
- Research Organization:
- Idaho National Engineering Lab., Idaho Falls (USA)
- DOE Contract Number:
- EY-76-C-07-1570
- OSTI ID:
- 6200797
- Report Number(s):
- CONF-790655-3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
DENSITOMETERS
LOFT REACTOR
MEASURING INSTRUMENTS
PERFORMANCE TESTING
PHOTOMETERS
PWR TYPE REACTORS
REACTOR INSTRUMENTATION
REACTORS
RESEARCH AND TEST REACTORS
SOUND WAVES
SPECIFICATIONS
TANK TYPE REACTORS
TEST REACTORS
TESTING
ULTRASONIC WAVES
WATER COOLED REACTORS
WATER MODERATED REACTORS