ANALYSIS OF VOID FRACTION PHASE DISTRIBUTION OF GAS-LIQUID FLOW IN A HORIZONTAL PIPE USING WIRE MESH SENSOR DATA.

ABSTRACT

Objective: This study aims to analyze phase distribution in a horizontal pipe. Methods: A mixture of air/silicone oil in a 6m horizontal pipe with a 0.067m internal diameter served as the operating fluid under consideration. The gas and liquid superficial velocities ranged from 0.047 to 4.727m/s and 0.047 to 0.4727m/s, respectively. Wire mesh sensor (WMS) data were used for this analysis. Results: The data from the wire mesh sensor (WMS) are average cross-sectional and timeaveraged measurements of the radial void percentage, acquired at a frequency of 1000 Hz for 60s. The average void fraction for the variety of flow condition examined was found to range between 0.38 and 0.85. The principal flow patterns identified in this study were determined to be in the slug and smooth stratified flow regimes, with the slug flow being the dominant one, according to an analysis of the findings. The void fraction rises as the superficial velocity of gas rises for a constant liquid superficial velocity. In terms of percentage error and RMS error, the performance of the void fraction correlations and their accuracy were evaluated. The top-performing correlations were determined to be Nicklin et al. (1962), Hassan (1995), and Kokal and Stanislav (1989), while Greskovich and Cooper (1975) were determined to be the least effective. As there was a recorded rise in radial void fraction with the superficial velocity of gas, a cubic profile that was reliant on that velocity was seen. Conclusion: It was observed that the experimental frequency rose with the superficial velocity of the liquid but rose sinusoidally with the superficial velocity of the gas.