One-dimensional simulation of co-current, dairy spray drying systems - pros and cons

Kamlesh Patel Xiao Dong Chen Romain Jeantet 1 Pierre Schuck 1
1 STLO - Science et Technologie du Lait et de l'Oeuf
Abstract : One-dimensional (1-D) simulation is a useful technique for the evaluation of dryer operating parameters and product properties before conducting real spray drying trials. The main advantage of a 1-D simulation tool is its ability to perform fast calculations with significant simplicitMa, Y.thematical models can be formulated using heat, mass and momentum balances at the droplet level to estimate time-dependent gas and droplet parameters. One of the purposes of this paper is to summarize key mathematical models that may be used to perform 1-D simulation for spray drying processes, predict essential product-drying gas parameters, assess the accuracy of prediction using pilot-scale spray drying data and perhaps most importantly address the main benefits and limitations of the 1-D simulation technique in relation to industrial spray drying operations. The results of a recent international collaborative study on the development of spray drying process optimization software for skim milk manufacture are presented as an example of the application of 1-D simulation in milk processing.
Keywords : spray drying one-dimensional simulation modeling drying kinetics dairy product droplet drying acoustically levitated droplets reaction-engineering approach computational fluid-dynamics glass-transition temperature skim milk powder effective moisture diffusivity mass-transfer thin-layer evaporation kinetics particle formation
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Journal articles
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Submitted on : Friday, September 7, 2012 - 3:44:53 PM
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Kamlesh Patel, Xiao Dong Chen, Romain Jeantet, Pierre Schuck. One-dimensional simulation of co-current, dairy spray drying systems - pros and cons. Dairy Science & Technology, EDP sciences/Springer, 2010, 90 (2-3), pp.181-210. ⟨10.1051/dst/2009059⟩. ⟨hal-00729587⟩

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