Identification of two-phase flow patterns by a single void fraction sensor
A wide range of combinations of gas and liquid flow rates that form various flow patterns are investigated. By analyzing the signal spectra detected by a single sensor using light techniques, the criteria for identifying two-phase flow patterns are proposed. By applying these criteria with only one parameter, the high-frequency contribution fraction (HFCF), the reasonable identifying performance is 76% when churn flow is counted and 88% when churn flow is not counted. When ..cap alpha..-bar is added as an auxiliary to HFCF, the identifying performance can be increased to 83 and 96%, depending on whether churn flow is counted. Both parameters can be acquired by signals from a single void fraction sensor. The criteria are expected to apply to other void fraction measurable systems for identifying two-phase flow patterns.
- Research Organization:
- National Tsing Hua Univ., Dept. of Nuclear Engineering, Hsinchu (TW)
- OSTI ID:
- 6476141
- Journal Information:
- Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 83:1; ISSN NUTYB
- Country of Publication:
- United States
- Language:
- English
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