MEASUREMENT AND EVALUATION OF 2-PHASE FLOW PARAMETERS

The fuzzy set theory and the flow-imaging technique were applied to measure the flow pattern and void fraction of two-phase flow. The flow pattern was identified on-line by using "Fuzzy Identification," and an instrument system based on the flow-imaging technique was developed for on-line flow pattern measurement as well. The void fraction was evaluated on-line by "Fuzzy Multifactorial Evaluation." The void fraction was also measured on-line by an instrument system based on the flow-imaging technique. The experimental results show that the developed methods are satisfactory.