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

Craig Walker, Andrew Cole, Elsa Antunes and Madoc Sheehan
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Craig Walker: College of Science and Engineering, James Cook University, Townsville 4811, Australia
Andrew Cole: MACRO—The Centre for Macroalgal Resources and Biotechnology, College of Science and Engineering, James Cook University, Townsville 4811, Australia
Elsa Antunes: College of Science and Engineering, James Cook University, Townsville 4811, Australia
Madoc Sheehan: College of Science and Engineering, James Cook University, Townsville 4811, Australia

Clean Technol., 2020, vol. 2, issue 2, 1-15

Abstract: 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.

Keywords: macroalgae; drying rates; equilibrium moisture; diffusion modelling (search for similar items in EconPapers)
JEL-codes: Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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