Wide-range vortex shedding flowmeter for high-temperature helium gas
The existing design of a commercially available vortex shedding flowmeter (VSFM) was modified and optimized to produce three 4-in. and one 6-in. high-performance VSFMs for measuring helium flow in a gas-cooled fast reactor (GCFR) test loop. The project was undertaken because of the significant economic and performance advantages to be realized by using a single flowmeter capable of covering the 166:1 flow range (at 350/sup 0/C and 45:1 pressure range) of the tests. A detailed calibration in air and helium at the Colorado Engineering Experiment Station showed an accuracy of +-1% of reading for a 100:1 helium flow range and +-1.75% of reading for a 288:1 flow range in both helium and air. At an extended gas temperature of 450/sup 0/C, water cooling was necessary for reliable flowmeter operation.
- Research Organization:
- Oak Ridge National Lab., TN (USA); American Magnetics, Inc., Oak Ridge, TN
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5626225
- Report Number(s):
- CONF-8310102-2; ON: DE84001984
- Country of Publication:
- United States
- Language:
- English
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210500* -- Power Reactors
Breeding
BREEDER REACTORS
CALIBRATION
DESIGN
ELEMENTS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FLOW RATE
FLOWMETERS
FLUIDS
GAS COOLED REACTORS
GASES
GCFR TYPE REACTORS
HELIUM
MEASURING INSTRUMENTS
METERS
NONMETALS
RARE GASES
REACTORS
RELIABILITY