Análise de perda de carga de escoamentos bifásicos carregados com partículas

Abstract

Particle-laden flows over smooth surfaces are of great interest to many industries. With the technology advancement, especially in the oil and gas industries, the interest in understanding the behavior of this type of flow inside pipes has generated several researches. Thus, in the present work, the construction of an experimental apparatus formed by smooth stainless steel pipes with a diameter of 50.8 mm and a total length of 88 meters was needed. It was used for later analysis of the load loss of a liquid-solid biphasic flow long the same construction, measurements of the pressure were taken from sockets located every 2 meters along the apparatus. For these measurements were used Silicon Carbide particles of 150 μm in diameter, three different concentrations ranging from 0.45% to 1.4% by mass, in addition to the variation of liquid flow. An empirical correlation has been developed for critical velocity analysis, which is the speed at which the particles settle to the bottom of the pipeline.