Method and apparatus for monitoring two-phase flow. [PWR]
A method and apparatus for monitoring two-phase flow is provided that is particularly related to the monitoring of transient two-phase (liquid-vapor) flow rates such as may occur during a pressurized water reactor core blow-down. The present invention essentially comprises the use of flanged wire screens or similar devices, such as perforated plates, to produce certain desirable effects in the flow regime for monitoring purposes. One desirable effect is a measurable and reproducible pressure drop across the screen. The pressure drop can be characterized for various known flow rates and then used to monitor nonhomogeneous flow regimes. Another useful effect of the use of screens or plates in nonhomogeneous flow is that such apparatus tends to create a uniformly dispersed flow regime in the immediate downstream vicinity. This is a desirable effect because it usually increases the accuracy of flow rate measurements determined by conventional methods.
- Assignee:
- Energy Research and Development Administration
- OSTI ID:
- 7328727
- Country of Publication:
- United States
- Language:
- English
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Apparatus for monitoring two-phase flow
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Related Subjects
47 OTHER INSTRUMENTATION
BLOWDOWN
FLOWMETERS
DESIGN
PWR TYPE REACTORS
TWO-PHASE FLOW
LOSS OF COOLANT
MONITORING
ACCIDENTS
FLUID FLOW
MEASURING INSTRUMENTS
REACTOR ACCIDENTS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
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