Improving the Measurement of Volume Fraction of Multiphase Fluids Based on Attenuation of Gamma Rays Without the Use of Artificial Intelligence
Tóm tắt
Nowadays, multiphase fluid flowmetry is of great importance in the industry. The most important parameter required for multi-phase fluid flowmeter is the volume fraction of each phase. In this study, three flow regimes (annular, stratified and homogeneous) for two-phase (liquid–gas) as well as three-phase (liquid–liquid–gas) to determine the volume fraction of phases with use gamma-ray attenuation were simulated by MCNPX code. The obtained mean relative error is about 0.02 for determination of volume fraction in best set-up. It is important to note that in this study, the small error value was obtained only by reducing the effect of the buildup factor on the Lambert–Beer relation without using artificial intelligence. It is also worth noting that the simulations and experiments of this study were performed using only a transmission detector (NaI) and a Gamma source Cs-137 (0.662 keV), for two-phases, and two Gamma source Cs-137(0.662 MeV) and Am-241(0.0595 MeV), for three phases.
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