Through air drying of tissue and towel - fabric drying and heating

S. Ramaswamy, Y. Cui

Research output: Contribution to conferencePaperpeer-review

Abstract

In studying the through air drying of tissue and towel, the drying and heating of TAD fabrics as part of the overall system has been considered for the first time. For a simple, single layered structure of the TAD fabrics, the convective drying and heating has been modeled using well-known heat and mass transfer models developed in general chemical engineering practice. The models considered are circular pipe flow, flow over cylinder and packed bed. All three models predict a long fabric drying period and a quick fabric heating period. The constant temperature of the fabric during the fabric drying period predicted by all three models are almost the same. This constant temperature is close to the adiabatic saturation temperature of the inlet air, dependent only on the temperature and supply humidity and not the air flow rate. The drying rates predicted by the packed bed model and flow over cylinder model are significantly higher than that by the circular pipe flow model. Further verification on the suitability of using either the packed bed or the flow over cylinder model to simulate fabric drying and hearing during through air drying is suggested.

Original languageEnglish (US)
Pages339-344
Number of pages6
StatePublished - Jan 1 1998
EventProceedings of the 1998 TAPPI International Engineering Conference. Part 1 (of 3) - Miami, FL, USA
Duration: Sep 13 1998Sep 17 1998

Other

OtherProceedings of the 1998 TAPPI International Engineering Conference. Part 1 (of 3)
CityMiami, FL, USA
Period9/13/989/17/98

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