Two-phase-flow velocity measurement using two full-flow drag bodies as transit-time flowmeters
Transient Time Flowmeters (TTF) have been given much interest in various water reactor safety programs as a method of determining a two-phase flow velocity. The determination of velocity by measuring the time interval tau for the passage of a flow disturbance between two points seems very logical. However, the major problem is how to experimentally determine this time interval, then how to interpret the velocity once it has been calculated. At ORNL, two Ramapo Inc. drag flowmeters have been tested in vertical two-phase air-water flow with good results. Three different configurations have been studied: in the first a drag body was placed 15.2 cm (6 in.) downstream of the other, in the second the separation was 29.2 cm (11.5 in.), and in the third the separation was 62.2 cm (24.5 in.).
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6850777
- Report Number(s):
- CONF-810434-1; TRN: 81-006666
- Resource Relation:
- Conference: 2. international symposium on flow, St Louis, MO, USA, 6 Apr 1981
- Country of Publication:
- United States
- Language:
- English
Similar Records
Using turbine flowmeters to measure multiphase flow
Thermal flowmeter modification for the addition of a packer and pump
Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
FLOWMETERS
REACTOR INSTRUMENTATION
PERFORMANCE TESTING
PWR TYPE REACTORS
BOILING DETECTION
REACTOR SAFETY
REACTOR SAFETY EXPERIMENTS
TWO-PHASE FLOW
FLUID FLOW
MEASURING INSTRUMENTS
METERS
REACTORS
SAFETY
TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210100 - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled