EFFECTS OF AIR PARAMETERS ON DRYING TIME AND ENERGY CONSUMPTION

Autor/autori: Daniela ŞOVA, Bogdan Ioan BEDELEAN

Abstract: In the present work a numerical simulation model of the convective drying process for a single board sample within an experimental wind tunnel was used. Since it is difficult to obtain the exact solutions of the differential equations of heat and mass transfer applied to the drying process, numerical simulation provides important outcomes for process description. A number of 64 different drying schedules were simulated. They were obtained from the combination of three air parameters, namely temperature (50-80 oC), velocity (0.5- 0.8 m/s) and relative humidity (20-35%). The simulation results were drying time and energy consumption. By using a multiple regression model the relationship between the factor settings and responses was acquired

Keywords: convective drying; numerical simulation; multiple regression analysis

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