An experimental investigation of the process of drying pine nut grains has been carried out by three methods: acousto-convective, thermoconvective, and thermal. A qualitative and a quantitative comparison of the dynamics of the processes of moisture extraction from the nut grains for the considered drying methods have been made. To elucidate the mechanism of moisture extraction from the pine nut grains, we carried out a separate investigation of the process of drying the nut shell and the kernel. The obtained experimental data on the acousto-convective drying of nuts are well described by the relaxation model, the data on the thermoconvective drying are well described by the bilinear law, and the data on the thermal drying are well described by the combined method consisting of three time steps characterized by different kinetic regimes of drying.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 87, No. 4, pp. 879–886, July–August, 2014.
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Zhilin, A.A., Fedorov, A.V. Acousto-Convective Drying of Pine Nuts. J Eng Phys Thermophy 87, 908–916 (2014). https://doi.org/10.1007/s10891-014-1088-z
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DOI: https://doi.org/10.1007/s10891-014-1088-z