DESIGN OF AN EXPERIMENTAL DEVICE FOR THE MEASUREMENT OF THE COEFFICIENT OF RESTITUTION

Authors

  • Eugenia Borsa Facultad de Ingeniería, Universidad Nacional del Centro de la Provincia de Buenos Aires.
  • Cecilia Inés Paulo c- Centro de Investigaciones en Física e Ingeniería (CIFICEN), dependiente de UNCPBA-CICPBA-CONICET. Av. Del Valle 5737 – 7400 Olavarría –Argentina
  • Horacio Andrés Petit Centro de Investigaciones en Física e Ingeniería (CIFICEN), dependiente de UNCPBA-CICPBA-CONICET. Av. Del Valle 5737 – 7400 Olavarría –Argentina
  • Juliana Piña Planta Piloto de Ingeniería Química (PLAPIQUI), dependiente de Universidad Nacional del Sur – CONICET. Camino La Carrindanga km. 7 - 8000 Bahía Blanca – Argentina

DOI:

https://doi.org/10.52292/j.laar.2019.35

Abstract

In this work an experimental device was designed and built to measure the coefficient of restitution of particles of different type and size. The aim of the study is to analyze the dependence of the coefficient of restitution with the impact velocity, the shape and mass of the particles. Three types of particles of different origin and shape were used: lentils, urea granules and polyethylene pellets. Besides, two impact materials were evaluated: steel and polycarbonate. The images were captured with a high resolution camera, recording the moment at which the particles impact and bounce on the surface. Image processing software was used to obtain the position of the particle at the instants before and after the impact. The particle velocities before and after the collision were calculated and the coefficient of restitution of the particles were obtained. The experimental results showed the dependence of the coefficient of restitution with the studied variables, providing useful information about the energy dissipation for numerical simulations and a breakthrough in the study of gas-solid flow systems.

Downloads

Published

2019-07-24

Issue

Vol. 49 No. 2 (2019): Latin American Applied Research

Section

Chemical Engineering

License

Once a paper is accepted for publication, the author is assumed to have transferred its copyright to the Publisher. The Publisher will not, however, put any limitation on the personal freedom of the author to use material from the paper in other publications. From September 2019 it is required that authors explicitly sign a copyright release form before their paper gets published. The Author Copyright Release form can be found here