Study On Measuring For Component Ratio And Velocity Of Fluid In Two Phases Flow By Application Of Gamma Transmission Method And Cross Correlation Analysis

Gamma transmission method and cross-correlation analysis techniques were applied to determine the gas flow and component ratio in two-phase flow in a laboratory model. The velocity was determined by cross-correlation analysis of transit time of disturbance through two detectors placed at a fixed distance; ratio of gas in the pipe cross section was determined by attenuation intensity of gamma transmission. However, because equipment is limited, we could only measure a gas velocity in two phase flow. The maximum gas velocity was measured 100 cm/s, with lower than 8 cm/s of absolute error. The component ratio was measured from 15% to 50% with lower than 5% for gas-liquid phase and 7% for liquid-liquid phase of absolute error. (author)