The steady state and dynamic response of a pilot slasher were investigated. Continuous on-line recording of moisture was used to determine the response of the exit moisture to step changes in yarn speed. A method to determine the drying rate from steady state data was developed, and a model describing the relationship between yarn speed and percent moisture regain was proposed and evaluated. The model consists of two first order systems acting in parallel, where the model parameters are functions of yarn speed. This work points out basic operating characteristics of pilot and industrial slashers.
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