Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Drag Reduction by Biopolymers – Influence of Okra Variety and Maturity Index on Additive Efficiency
Submission Author:
Jordana Oliveira Lyra , ES
Co-Authors:
Jordana Oliveira Lyra, Aline Bisi de Souza, Renato Siqueira, Edson Soares
Presenter: Jordana Oliveira Lyra
doi://10.26678/ABCM.ENCIT2018.CIT18-0108
Abstract
Drag reduction by the addition of polymers is a simple and inexpensive method to increase the efficiency of hydraulic transport. Recent concerns with the environment lead to the need to replace conventional synthetic polymers with natural polymers, which do not generate negative impacts on nature. One of the proposed biopolymers is okra (Abelmoschus esculentus), which physicochemical characteristics are affected by plant variety and fruit maturity, among other parameters. Thus, the objective of this work is to analyze the efficiency of three plant varieties (Amarelinho, Clemson and Santa Cruz) on the efficiency of the additive used as drag reducing agent. The influence of the harvest period was also evaluated for the latter variety. All the samples obtained were characterized chemically and rheologically and the drag reduction tests were carried out in a flow loop apparatus. The results show that although there are no significant differences according to the cultivar analyzed, the maturity of the fruits can considerably influence the efficiency of the biopolymer as drag reducer.
Keywords
drag reduction, Turbulence, biopolymer, Okra, Abelmoschus esculentus
