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Cost-effective cassava processing: Case study of small-scale flash-dryer reengineering

Authors :
Thierry Tran
Adebayo Abass
Luis Alejandro Taborda Andrade
Arnaud Chapuis
Marcelo Precoppe
Laurent Adinsi
Alexandre Bouniol
Makuachukwu Ojide
Suraju Adeyemi Adegbite
Simon Singi Lukombo
Murat Sartas
Béla Teeken
Apollin Fotso Kuate
Robert Ndjouenkeu
Martín Moreno
John Belalcázar
Luis Augusto Becerra López-Lavalle
Dominique Dufour
Source :
Root, tuber and banana food system innovations: value creation for inclusive outcomes, Root, Tuber and Banana Food System Innovations ISBN: 9783030920210
Publication Year :
2022
Publisher :
Springer, 2022.

Abstract

The development and scaling out of flash-dryer innovations for more efficient, small-scale production of high-quality cassava flour (HQCF) and starch is described. The diagnoses of cassava-processing SMEs (small and medium enterprises) revealed their energy expenditures for drying were considerably higher than those of large-scale industrial companies, which was mostly due to suboptimal design of flash-drying systems. As a result, small-scale production of cassava starch and HQCF often incurs high production costs, incompatible with market prices of final products. Taking stock of this situation, RTB scientists have developed several innovations to optimize energy efficiency and costs, including a longer drying pipe, reengineered heat exchanger, larger blower for higher air velocity, and a higher product/air ratio. This was based on numerical modelling to determine the key design features of energy-efficient flash dryers, followed by construction and demonstration of a pilot-scale prototype. As a result, improved small-scale flash dryers are now being scaled out to the private sector in various countries, using the Scaling Readiness framework and achieving 10–15% gains in productivity and incomes. A method for diagnosis of process efficiency is also described, to identify technical bottlenecks and to document and measure the outcomes and impacts during the implementation of scaling-out projects.

Details

Language :
English
ISBN :
978-3-030-92021-0
ISBNs :
9783030920210
Database :
OpenAIRE
Journal :
Root, tuber and banana food system innovations: value creation for inclusive outcomes, Root, Tuber and Banana Food System Innovations ISBN: 9783030920210
Accession number :
edsair.doi.dedup.....69d1d428b1d8c0d351e1b2f78bb4d3b6