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2 Chemical and Process Engineering

2 2013

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Non-Invasive Evaluation of Wavy Liquid Film

100%

Czernek K. , Witczak S.

Chemical and Process Engineering

2013

tom 34

nr 2

241-252

The study presents the possible use of optoelectronic system for the measurement of values specific for hydrodynamics of two-phase gas very-high-viscosity liquid flow in vertical pipes. An experimental method was provided, and the findings were presented and analysed for selected values which characterise the two-phase flow.

Multiphase Flow Mixture In 180° Pipe Bends

100%

Pietrzak M. , Witczak S.

Chemical and Process Engineering

2013

tom 34

nr 2

227-239

This paper presents the results of research regarding measurements of the values of pressure drops during horizontal flow of gas-liquid and gas-liquid-liquid mixture through 180o pipe bends. The conducted insightful analysis and assessment during multi-phase flow in pipe bends has enabled to develop a new method for determination of their values. This new method for determining pressure drops ensures higher precision of calculation in comparison to other methods presented in literature and can be applied for calculation of these parameters during multi-phase flows in pipe bends with various geometries.