Conclusions
A computer calculation of the process of synthetic yarn heat-up during heat stretching which is based on using the thermal conductivity equation in the difference form permits one to analyse yarn heat-up through its depth, and also to take account of change in yarn tension and in temperature of the heating elements.
The results obtained can be used to estimate the heat-up of yarns of any linear density.
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Literature cited
P. I. Grigor'ev et al., Khim. Volokna, No. 3, 29 (1982).
A. A. Shevyakov and R. V. Yakovleva, Engineering Methods of Calculating the Dynamics of Heat-exchange Apparatus [in Russian], Mashinostroenie, Moscow (1968), pp. 145–155.
I. F. Zherebyat'ev and A. T. Luk'yanov, Mathematical Modeling of Equations of the Thermal Conductivity Type with Discontinuous Coefficients [in Russian], Energiya, Moscow (1968), pp. 8–17.
Methods of Calculating Heat-exchange in Processes of Synthetic Fibre Manufacture [in Russian], NIITEKhIM, Moscow (1979), pp. 20–23.
Additional information
Translated from Khimicheskie Volokna, No. 5, pp. 13–14, September–October, 1984.
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Kositski, T., Shurygin, D.A. Calculation of the heat-up of synthetic fibres during the heat-stretching process. Fibre Chem 16, 306–308 (1985). https://doi.org/10.1007/BF00551371
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DOI: https://doi.org/10.1007/BF00551371