Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
EXPERIMENTAL STUDY OF A BINARY MIXTURE OF RICE HUSK AND SAND IN A FLUIDIZED BED
Submission Author:
Fernando Manente Perrella Balestieri , SP , Brazil
Co-Authors:
Fernando Manente Perrella Balestieri, Carlos Manuel Romero Luna, Ivonete Ávila
Presenter: Fernando Manente Perrella Balestieri
doi://10.26678/ABCM.COBEM2019.COB2019-1787
Abstract
. Large quantities of rice husk are produced annually as a result from agricultural waste, which, if not treated or discarded correctly, may increase the greenhouse effect and negatively impact the environment more than a controlled process of combustion or gasification. One of the ways of avoiding this problem is using the rice husk as a source of energy. Although that there are many systems that can do that, the fluidized bed presents a good fuel flexibility and high conversion efficiency. However, to design the fluidized bed, the minimum fluidization velocity is considered one of the main parameters, being of considerable complexity due to its dependency on other factors such as granulometric distribution and density of the particulates composing the bed. One way which may help reduce the resources and the amount of time spent in the development cycle is creating prediction models for this variable, making it possible to design the system without having to build several prototypes. Even though that have been studies involving prediction models of minimum fluidization velocity for biomass, not many have focused on the mixture between rice and sand. Consequently, the aim of this work is to test some of these models available in the literature and compare them to experimental results.
Keywords
fluidized bed, binary mixture, rice husk, minimum fluidization velocity
