Contribuição ao estudo de um medidor não-invasivo da espessura da camada de agua em um escoamento anular oleo-agua

TL;DRAbstract

This work is a contribution to the study of a non-intrusive probe for measurement of the thickness of the water layer of a core-annular flow.A capacitive probe was built and its static performance was evaluated from tests executed in a specially designed bench-scale apparatus.In addition, evaluation of the dynamic performance was made possible from fluid-flow tests in a multiphase flow loop.From the static tests information was obtained about the probe output: shape of the produced response, sensitivity, range and the water electrical conductivity effect.The experimental data were compared with results of a numerical simulation available from a different author.In the dynamic tests the measurement technique used to obtain the thickness of the annular water layer consisted of a sequence of photographic images from a fast camera.The results were compared with those from the capacitive probe, allowing the evaluation of its performance in the presence of fluid flow.The results demonstrate

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