Abstract
This paper presents the measurement of phase fraction of multiphase using LabVIEW/FPGA&RT. Phase fraction measurement is done by high-frequency gamma ray photons attenuation from multiple scintillation detectors without dead time between dwell intervals. This phase fraction measurement method is based on the differences in the linear or mass attenuation coefficient of components of each phase to light. The electromagnetic wave attenuation based on Beer-Lambert’s law gives the width of individual phases. Even though this method requires shielding, it has the advantages of penetrating through steel. Other phase fraction methods include differences in the permittivity of the components of phases. The voltage across the two electrodes kept opposite to each other determines the phase fraction. But, it has the disadvantages of requirements of special shielding for low capacitance and stray capacitance. Besides, the differences in the conductivity can measure the path resistance. This conductivity change gives phase fraction. Among the above volume—percentage measurement methods, former method is more accurate for industrial applications.
References
Wu, H., Tan, C., Dong, F.: A simulation experimental system of multiphase pipe flow. In: Proceedings of Chinese Control and Decision Conference (CCDC), pp. 3962–3966 (2012)
Wylie, S.R., Shaw, A., Al-Shamma’a, A.I.: RF sensor for multiphase flow measurement through an oil pipeline. Meas. Sci. Technol. 17, 2141 (2006)
Xie, C.G.: Measurement of multiphase flow water fraction and water-cut. AIP Conf. Proc. 914, 232–239 (2007)
Sharaf, S., Meulen, P.V.D., Agunlejika, E.O., Azzopardi, B.J.: Structures in gas–liquid churn flow in a large diameter vertical pipe. Int. J. Multiph. Flow 78, 88–103 (2016)
Kraft, S., Maddox, E., Buis, E.J., Owens, A., Quarati, F.G.A., Dorenbos, P., Drozdowski, W., Bos, A.J.J., de Haas, J.T.M., Brouwer, H., Dathy, C., Ouspenski, V., Brandenburg, S., Ostendorf, R.: Development and characterization of large La-Halide gamma-ray scintillators for future planetary missions. IEEE Trans. Nucl. Sci. 54, 873–878 (2007)
Varma, R., Bhusarapu, S., O’sullivan, J.A., Al-Dahhan, M.H.: A comparison of alternating minimization and expectation maximization algorithms for single source gamma ray tomography. Meas. Sci. Technol. 19, 015506 (2007)
Kelkar, N.G.: Three-body dwell time. Phys. Rev. 1, 062109 (2010)
Yang, W., Li, Y., Wu, Z., Tsamakis, D., Learmonth, D., Xie, C.G., Huang, S., Lenn, C., Cutler, A.: Multiphase flow measurement by electrical capacitance tomography. In: Proceeding of IEEE International Conference on Imaging System Technique, pp. 108–111 (2011)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this chapter
Cite this chapter
Mathew, M., Ramesh Babu, N., Suresh, M., Sanjeevikumar, P. (2018). High Response Photon-Counting for Phase Fraction Measurement Using Compact-RIO with FPGA. In: Konkani, A., Bera, R., Paul, S. (eds) Advances in Systems, Control and Automation. Lecture Notes in Electrical Engineering, vol 442. Springer, Singapore. https://doi.org/10.1007/978-981-10-4762-6_13
Download citation
DOI: https://doi.org/10.1007/978-981-10-4762-6_13
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-4761-9
Online ISBN: 978-981-10-4762-6
eBook Packages: EngineeringEngineering (R0)