Heat and mass transfer in the processes of drying thin natural leathers pasted on smooth surfaces

The results of the study drying thin natural leather pasted on a smooth surface are presented. solving differential equation non-stationary heat conduction with constant thermophysical coefficients used to determine average temperature during period decreasing rate. calculated values temperatures for moisture-proof and moisture-free skin surfaces given. Methods simplifying solutions nonlinear equations aim linearizing these approximating variable transport considered. use method piecewise stepwise approximation transfer over short time intervals showed that low-intensity processes, linear implemented quite accurately, confirming regularities obtained empirically. calculation duration according B. S. Sazhin is processing experimental curves leathers reliability verified experiment compared using formulas. approximate analytical reliable coefficients, confirmed by experimentally established regularities, practical importance. Together methods, methods make it possible establish optimal regimes more accurately generalize data.