Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species Ulva ohnoi and Oedogonium intermedium

Autor: Craig Walker, Andrew Cole, Elsa Antunes, Madoc Sheehan
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Clean Technologies, Vol 2, Iss 2, Pp 225-239 (2020)
Druh dokumentu: article
ISSN: 2571-8797
DOI: 10.3390/cleantechnol2020015
Popis: Algae-based products have applications in the food and pharmaceutical industries, bioremediation of waste streams and biofuel production. Drying has been recognised to constitute the largest energy cost in algae processing, yet there is limited data or modelling characterising the drying kinetics of macroalgae. This research modelled the equilibrium moisture content of two macroalgae species, Ulva ohnoi, a saltwater alga and Oedogonium intermedium, a freshwater alga. The Guggenheim–Anderson–de Boer model was found to best represent experimental equilibrium moisture contents. Drying rate curves obtained under both convective and radiative conditions were fitted to an analytical solution of Fick’s second law, including the modelled equilibrium moisture values. Effective diffusivity values for the two species are presented.
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