Suscripción a Biblioteca: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

MODELLING OF THE TRANSIENT DRYING PROCESSES IN TEXTILE OVENS

Get access (open in a dialog) DOI: 10.1615/IHTC8.4390
pages 2995-3000

Sinopsis

In the textile industry hot ovens are used for both the drying of textiles and the "setting" of the fabric. A computer code is developed to determine the temperature and moisture distribution within the cloth as a function of time while it passes through the oven. A time dependent finite difference approach is used to solve the heat transfer and mass transfer differential equations. The surface transfer coefficients rather than the diffusion and conduction coefficients within the cloth are the primary factors in determining cloth drying rates when the cloth materials are relatively thin fabrics. In order to verify the analytical model an extensive experimental program was conducted in an actual textile dyeing plant. The agreement initially was not too good and the difference can only be due to the spent gas from the upstream heating jets interfering with the downstream jets and thus influencing the transfer coefficients. The model can be adjusted for this effect and then the model and experiment can be shown to be in good agreement.