Thin layer drying of green microalgae (Chlorella sp.) paste biomass: Drying characteristics, energy requirement and mathematical modeling
The characteristics, energy requirement and kinetics of open sun, solar, hot air oven (50–70°
C) and microwave (450–700 W) thin layer drying of green microalgae (Chlorella sp.) paste
were investigated. Drying took place mainly in the falling rate period. The moisture
diffusivities for the open sun, solar, hot air and microwave drying were 4.64× 10− 10, 6.46×
10− 10, 5.91× 10− 10–1.10× 10− 9 and 1.83–3.91× 10− 9 m 2 s− 1, respectively. Activation
energies for hot air and microwave drying were 28.7 kJ mol− 1 and 21.4 W g− 1 …
C) and microwave (450–700 W) thin layer drying of green microalgae (Chlorella sp.) paste
were investigated. Drying took place mainly in the falling rate period. The moisture
diffusivities for the open sun, solar, hot air and microwave drying were 4.64× 10− 10, 6.46×
10− 10, 5.91× 10− 10–1.10× 10− 9 and 1.83–3.91× 10− 9 m 2 s− 1, respectively. Activation
energies for hot air and microwave drying were 28.7 kJ mol− 1 and 21.4 W g− 1 …
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