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Open AccessFeature PaperArticle

Performance Evaluation of Helical Separators Applied to Olive Oil–Water Two-Phase Flows at Low Reynolds Numbers

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Departamento de Bromatología y Tecnología de los Alimentos, Universidad de Córdoba, Campus Rabanales, N–IV, Km 396, 14014 Córdoba, Spain
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Departamento de Ciencias Agroforestales, Escuela Técnica Superior de Ingeniería, Campus El Carmen, Universidad de Huelva, 21007 Huelva, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Jose G. Vasconcelos and Xiangyu Hu
Water 2021, 13(7), 911; https://doi.org/10.3390/w13070911
Received: 19 January 2021 / Revised: 22 March 2021 / Accepted: 24 March 2021 / Published: 26 March 2021
(This article belongs to the Special Issue Water and Food Fluids Flow)
One of the unit operations involved in the production of olive oil is the separation of liquid–liquid systems (and other multiphase flows) in their fundamental phases. The use of helical separators could be an alternative to be considered for that task in order to reduce energy consumption and improve the quality of products in olive oil mills (‘almazaras’). In this work, four models of helical separators have been built and tested in order to manage olive oil and water two-phase flows (with olive oil as the majority phase). Separation yields were analyzed from a dimensional analysis perspective, considering variables such as density and viscosity, flow rate, head losses, or the water concentration in the flows studied. The best separation yields (of the order of 80% to 100%) were obtained for olive oil–water two-phase flows in which the water concentrations could be higher, in some cases, than 5–10% for Reynolds numbers of below 60. View Full-Text
Keywords: liquid–liquid system; dispersion; helical pipe; hydraulic system; separation yield liquid–liquid system; dispersion; helical pipe; hydraulic system; separation yield
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MDPI and ACS Style

Vallesquino-Laguna, P.; Rivas-Valverde, M.; Pulido-Calvo, I. Performance Evaluation of Helical Separators Applied to Olive Oil–Water Two-Phase Flows at Low Reynolds Numbers. Water 2021, 13, 911. https://doi.org/10.3390/w13070911

AMA Style

Vallesquino-Laguna P, Rivas-Valverde M, Pulido-Calvo I. Performance Evaluation of Helical Separators Applied to Olive Oil–Water Two-Phase Flows at Low Reynolds Numbers. Water. 2021; 13(7):911. https://doi.org/10.3390/w13070911

Chicago/Turabian Style

Vallesquino-Laguna, Pedro; Rivas-Valverde, María; Pulido-Calvo, Inmaculada. 2021. "Performance Evaluation of Helical Separators Applied to Olive Oil–Water Two-Phase Flows at Low Reynolds Numbers" Water 13, no. 7: 911. https://doi.org/10.3390/w13070911

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