The Drying Kinetics of Natural Rubber Sheets under Hot-Air Drying with Forced Convection: Experiments and Modeling

Abstract:

This study investigated the drying kinetics of the natural rubber sheets under hot air drying, with various heat sources, and included modeling of the kinetics. The heat was generated by combustion, either of charcoal briquettes from coconut shell (biomass) or of liquid petroleum gas (LPG). The hot air entering the drying chamber had its initial temperature controlled at 40, 50, or 60 Centigrade. Five rubber sheets within the chamber were observed during their drying. Howerver, in the case of biomass, the fuctuation of temperature due to charcoal adding. Therfore, the non-linear regression analysis was performed only LPG data with a Weibull distribution and a Modified Handerson and Pabis. They represented the drying kinetics with parametric fits; moreover, an effective diffusion coefficient was determined for each experimental condition.

• Periodical: Advanced Materials Research (Volume 844)
• Pages: 154-157
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.844.154
• Online since: November 2013
• Authors: Warit Werapun, Yutthapong Pianroj, Pinpong Khongchana
• Keywords: Drying Kinetics, Rubber Sheet Drying

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