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Simplified heat and mass transfer modeling in a food processing plant

Abstract : Inside a food production plant, bacteria can grow particularly in zones of high humidity leading to deterioration of food quality and safety. Cleaning and disinfection are currently practiced to reduce this hazard. However it is not always efficient; stagnant water is susceptible to be a source of microbial growth. To prevent this problem, drying must be performed but water may still not entirely evaporate at some locations. In order to optimize the drying process, a simplified heat and mass transfer model was developed in this study. Validation was performed by comparing the predicted water weight evolutions with the ones measured in a food processing plant. It was found that by reducing the air inlet relative humidity from 85% to 50%, the time needed to evaporate 90% of the initial water weight could be reduced by a factor of about 1.5. This shows the interest to dry the inlet air.
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Logan Lecoq, Denis Flick, Hong-Minh Hoang, Onrawee Laguerre. Simplified heat and mass transfer modeling in a food processing plant. 24. IIR International Congress of Refrigeration (ICR2015), Institut International du Froid (IIF). FRA.; Japan Society of Refrigerating and Air Conditioning Engineers (JSRAE)., Aug 2015, Yokohama, Japan. ⟨10.18462/iir.icr.2015.0572⟩. ⟨hal-02738828⟩



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