Equilibrium moisture isotherms of textiles materials

Authors

  • Luiza Helena Costa Dutra Sousa UEM Author
  • Nehemias Curvelo Pereira UEM Author
  • Oswaldo Curty da Motta Lima UEM Author
  • Erica Vagetti Fonseca UEM Author

DOI:

https://doi.org/10.4025/actascitechnol.v23i0.2764

Keywords:

secagem, isotermas têxteis, isotermas de equilí­brio, algodão

Abstract

Knowledge on thermal characteristics of materials is very important for developing of a drying process in a more economic and viable way. The literature presents isotherms of several natural fibers, as cotton, wool, hemp, jute, sisal and silk (Foust et al., 1982; Gomide, 1991), and these isotherms have a very similar and evident behavior. This work presents a reliable database of textile materials isotherms, besides experimental cotton sarja data, obtained by the static method and using saline solutions, at the temperatures of 28, 35 and 70ºC. The samples´ equilibrium moisture was obtained after 21 days and dry basis humidity was determined by the stove method. Results were appraised by means of models given in the literature. Henderson´s model seems to be the most representative for isotherms of the natural fibers under analysis

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Author Biography

  • Luiza Helena Costa Dutra Sousa, UEM
    graduada em Engenharia Mecânica pela Universidade Federal de Itajubá - UNIFEI (1985), mestrado em Engenharia Quí­mica pela Universidade Estadual de Maringá - UEM (1996) e doutorado em Engenharia Quí­mica pela Universidade Estadual de Maringá - UEM (2003). Atualmente é Professor Adjunto da Universidade Estadual de Maringá. Possui experiência na área de Engenharia Quí­mica, com ênfase em têxteis, borracha e papel, atuando principalmente com os seguintes temas: secagem e transferência de calor. Na área de Engenharia Mecânica atua em projetos mecânicos e elementos de máquinas Currí­culo Lattes

Published

2008-05-05

Issue

Section

Chemical Engineering

How to Cite

Equilibrium moisture isotherms of textiles materials. (2008). Acta Scientiarum. Technology, 23, 1363-1368. https://doi.org/10.4025/actascitechnol.v23i0.2764

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