Pneumatic drying of cassava starch: Numerical analysis and guidelines for the design of efficient small-scale dryers
| Autor: | Marcelo Precoppe, Klanarong Sriroth, Thierry Tran, Jean-Michel Méot, Arnaud Chapuis |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Starch General Chemical Engineering 02 engineering and technology chemistry.chemical_compound Température de l'air Process engineering Séchage à l'air Petite entreprise Échange d'énergie Waste management U10 - Informatique mathématiques et statistiques Transfert de masse 04 agricultural and veterinary sciences 040401 food science Dilution Flash (manufacturing) Bilan énergétique Amidon Modèle mathématique Zone tropicale Efficient energy use Séchoir Air velocity S1 N20 - Machines et matériels agricoles Manioc Petite exploitation agricole 0404 agricultural biotechnology Q02 - Traitement et conservation des produits alimentaires 020401 chemical engineering Consommation d'énergie 0204 chemical engineering Physical and Theoretical Chemistry Pays en développement Propriété physicochimique business.industry Scale (chemistry) Numerical analysis Modèle de simulation Conception Performance du matériel chemistry Particle size business |
| Zdroj: | Drying Technology |
| ISSN: | 1532-2300 0737-3937 |
| Popis: | In a number of tropical countries, the expansion of cassava processing is tied to the development of small-scale, energy-efficient pneumatic dryers used to dry flour and starch. To facilitate this development, in this study a model of the pneumatic drying of starch particles was developed, to be fitted to measurements taken from large cassava processing factories. After that, numerical simulations were performed to analyse the effects of geometry and operating conditions on the energy efficiency and pipe length required to dry the product. The results clarified the influence of processing capacity, air inlet conditions and starch particle size, emphasizing that air velocity, as well as the dilution of the starch, should be minimised. In light of the findings described here, we offer guidelines for the design of efficient small-capacity flash dryers. |
| Databáze: | OpenAIRE |
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