W ramach realizacji zadania 6 "Rozwój procedur przetwarzania i analizy sygnałów oraz kalibracji elektronicznych narzędzi w pomiarach i diagnostyce", oraz współpracy w tym zakresie z innymi ośrodkami w Polsce, powstała publikacja zamieszczona w czasopiśmie Metrology and Measurement Systems (IF: 1,093, 100 pkt MNiSW):
Hanus R., Zych M., Mosorov V., Golijanek-Jędrzejczyk A., Jaszczur M., Andruszkiewicz A.: Evaluation of liquid-gas flow in pipeline using gamma-ray absorption technique and advanced signal processing. Metrology and Measurement Systems Vol. 28 (2021), No. 1, 145–159. (https://journals.pan.pl/dlibra/publication/135997/edition/118926/content)
Abstract
Liquid-gas flows in pipelines appear in many industrial processes, e.g. in the nuclear, mining, and oil industry.
The gamma-absorption technique is one of the methods that can be successfully applied to study such flows.
This paper presents the use of the gamma-absorption method to determine the water-air flow parameters
in a horizontal pipeline. Three flow types were studied in this work: plug, transitional plug-bubble, and
bubble one. In the research, a radiometric set consisting of two Am-241 sources and two NaI(TI) scintillation
detectors have been applied. Based on the analysis of the signals from both scintillation detectors, the gas
phase velocity was calculated using the cross-correlation method (CCM). The signal from one detector
was used to determine the void fraction and to recognise the flow regime. In the latter case, a Multi-Layer
Perceptron-type artificial neural network (ANN) was applied. To reduce the number of signal features, the
principal component analysis (PCA) was used. The expanded uncertainties of gas velocity and void fraction
obtained for the flow types studied in this paper did not exceed 4.3% and 7.4% respectively. All three types
of analyzed flows were recognised with 100% accuracy. Results of the experiments confirm the usefulness
of the gamma-ray absorption method in combination with radiometric signal analysis by CCM and ANN
with PCA for comprehensive analysis of liquid-gas flow in the pipeline.
Publikacja w Metrology and Measurement Systems
2021-04-17
