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Thermodynamic characterization of single-stage spray dryers: Mass and energy balances for milk drying

Abstract : Spray drying is an efficient unit operation applied in food drying that demands a high amount of energy compared to vacuum evaporation and membrane filtration. The objective of this work was to present a mathematical model-like basis for the construction of mass and energy balances. For this purpose, two lab-scale single spray dryers in milk drying with different evaporative capacities have been used as example. The values of the absolute humidity, mass and energy losses, energetic specific consumption (ESC), and the efficiency of the process were obtained bycalculations developed in this work. The mathematical model was valid for the evaluation of mass and energy losses, and it allowed us to compare the efficiencies of spray dryers with different designs. From this model, it is possible to compare different drying processes and dryers.
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https://hal.archives-ouvertes.fr/hal-01576762
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Submitted on : Wednesday, August 23, 2017 - 8:40:06 PM
Last modification on : Wednesday, July 15, 2020 - 4:39:55 PM

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Cleuber Raimundo da Silva, Evandro Martins, Arlan Caldas Pereira Silveira, Moisés Simeão, Ariel Lessa Mendes, et al.. Thermodynamic characterization of single-stage spray dryers: Mass and energy balances for milk drying. Drying Technology, Taylor & Francis, 2017, 35 (15), ⟨10.1080/07373937.2016.1275675⟩. ⟨hal-01576762⟩

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