An apparatus for particle-to-fluid relative velocity measurement in tube flow at various temperatures under nonpressurized flow conditions

Abstract

A laboratory scale apparatus was designed to carry out studies on the flow behavior of particles suspended in carrier fluids at elevated temperatures. Single particles were introduced into a 1·2-m long Pyrex glass tube to simulate conditions existing in holding tubes of continuous flow systems. Tests were conducted with water and 3% starch solutions at temperatures of 60, 80, and 98°C, over a range of fluid flow rates. Food particles (potato and carrot cubes) as well as polypropylene spheres were used to test the suitability of the apparatus.