Thin layer drying of Black Galingale in Thailand [ READ ]
C. Phusumpao, J. Piwsaoad
This article presents the thin-layer drying of Black Galingales, which was conducted under controlled conditions of temperature by using a convective air dryer. The Black Galingales were dried for the temperature of 40à¹C, 50à¹C and 60à¹C, with the air flow velocity fixed at 1 ms-1. It was observed that the drying air temperature has strong influence on the drying rates of Black Galingales, so that the higher the temperature the less the drying time. Seven different thin-layer models were fitted to the experimental data of Black Galingales. The drying parameters of Black Galingales were found to be a function of drying air temperature. The Modified Handerson and Pabis model were revealed to be the best and it was followed by the Two term model. Moisture diffusivities of black galingales have been determined experimentally and moisture diffusivities were found to increase with the increase in drying air temperature. Moisture diffusivities of black galingales can be explained using an Arrhenius-type equation. The mean diffusivity values of black galingales in this study are 9.38×10−10 m2/s.
C. Phusumpao, J. Piwsaoad
This article presents the thin-layer drying of Black Galingales, which was conducted under controlled conditions of temperature by using a convective air dryer. The Black Galingales were dried for the temperature of 40à¹C, 50à¹C and 60à¹C, with the air flow velocity fixed at 1 ms-1. It was observed that the drying air temperature has strong influence on the drying rates of Black Galingales, so that the higher the temperature the less the drying time. Seven different thin-layer models were fitted to the experimental data of Black Galingales. The drying parameters of Black Galingales were found to be a function of drying air temperature. The Modified Handerson and Pabis model were revealed to be the best and it was followed by the Two term model. Moisture diffusivities of black galingales have been determined experimentally and moisture diffusivities were found to increase with the increase in drying air temperature. Moisture diffusivities of black galingales can be explained using an Arrhenius-type equation. The mean diffusivity values of black galingales in this study are 9.38×10−10 m2/s.
