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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References
V. N. Vorob′ev, R. A. Vorob′eva, É. I. Sviridenko, and V. M. Kolesov, Seeds of Siberian Cedar [in Russian], Nauka, SO RAN, Novosibirsk (1979).
G. I. Vorob′ev (Ed.), Forest Encyclopedia [in Russian], Sov. Éntsiklopediya, Moscow (1985).
V. N. Glaznev, A. V. Solotchin, and Sh. Suleimanov, Parametric investigation of fl uid-induced vibrations during the infl ow of a supersonic jet into a cylindrical cavity, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Tekh. Nauk, No. 13, Issue 3, 22–26 (1983).
A. A. Zhilin, A. V. Fedorov, V. M. Fomin, and Yu. G. Korobeinikov, Mathematical simulation of the mechanism of acoustic drying of porous materials, Prikl. Mekh. Tekh. Fiz., 44, No. 5, 102–117 (2003).
Yu. G. Korobeinikov, A. V. Fedorov, E. A. Buluchevskii, and A. V. Lavrenov, "Salt in a porous matrix" sorbent and sawdust as air driers for ventilation systems, Inzh.-Fiz. Zh., 82, No. 2, 252–257 (2009).
A. A. Zhilin, A. V. Fedorov, and Yu. G. Korobeinikov, Investigation of the processes of impregnation and drying of granular silica gel, Inzh.-Fiz. Zh., 84, No. 5, 897–906 (2011).
V. N. Glaznev and Yu. G. Korobeinikov, The Hartmann effect. Domain of existence and frequency of vibrations, Prikl. Mekh. Tekh. Fiz., 42, No. 4, 62–67 (2001).
Yu. G. Korobeinikov and A. V. Fedorov, On the extraction of water from a capillary sample in an acoustic fi eld, Inzh.-Fiz. Zh., 76, No. 1, 7–10 (2003).
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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