Identification of two-phase flow regimes by neutron noise analysis

Journal Article · Sat Jul 01 00:00:00 EDT 1989 · Nuclear Technology; (USA)

OSTI ID:5412097

King, C H; Lee, S C; Pei, B S ^[1]; Ouyang, M S; Pei, B S ^[2]

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1. Institute of Nuclear Energy Research, Lung-Tan (Taiwan)
2. National Tsing Hua Univ., Hsinchu (Taiwan). Dept. of Nuclear Engineering

A new technique is proposed for analyzing neutron noise signals to identify two-phase flow patterns in an experimental reactor. Based on the modeling of neutron signals by autoregressive moving average models via an optimization technique, two-phase flow patterns can be identified by a single index known as the dynamic signature. A computer code is set up in an IBM-PC/XT microcomputer by which --90% of the experimental cases have been successfully identified among 86 data sets. This technique is recommended for the analysis of boiling water reactor neutron signals to generate a data base for designing a core flow monitoring system. This technique would be useful in understanding thermohydraulic phenomena in an operating power reactor.

• OSTI ID: 5412097
• Journal Information: Nuclear Technology; (USA), Journal Name: Nuclear Technology; (USA) Vol. 86:1; ISSN NUTYB; ISSN 0029-5450
• Country of Publication: United States
• Language: English

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