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International journal of refrigeration = Revbue internationale du froid v.74, 2017년, pp.435 - 449   SCI SCIE
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Influence de la dEshumidification de l'air sur l'Evaporation de l'eau dans une usine agroalimentaire
Influence of air dehumidification on water evaporation in a food plant

Lecoq, L. (Irstea, UR GPAN, 1 rue Pierre-Gilles de Gennes, 92761 Antony, France ); Derens, E. ( Irstea, UR GPAN, 1 rue Pierre-Gilles de Gennes, 92761 Antony, France ); Flick, D. ( UMR Ingé ); Laguerre, O. (nierie Procé );
  • 초록  

    Abstract To reduce the proliferation of bacteria inside food plants, cleaning and disinfection are performed daily following production. These operations are followed by drying during which the drying rate should be as high as possible. This study shows the influence of a dehumidifier on the water mass evolution on surfaces during the drying of a food plant. The temperature, relative humidity and water mass evolution were monitored under two conditions: with and without a dehumidifier. Comparison of the results shows that the drying rate is about 1.5 times higher when a dehumidifier is used. These data were used to develop a simplified heat and mass transfer model allowing the prediction of the temperature and drying rate at different locations. The results can help the manufacturer to evaluate the benefits of a dehumidifier and consider the use of other devices to achieve better airflow distribution or greater heat supply for certain surfaces. Highlights Experimental results show the importance of a dehumidifier to enhance drying. Dehumidifier reduced relative humidity from about 90% to 60%. Model was developed to predict water evaporation rate on surfaces of a food plant. Good agreements between the model and the experimental results. Model can be generalized to other food plant to predict and improve drying.


  • 주제어

    Dehumidifier .   Food plant .   Mass transfer .   Relative humidity .   Water evaporation .   Déshumidificateur .   Usine agroalimentaire .   Transfert de masse .   Humidité relative .   Évaporation d'eau.  

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