Heated, rotating rolls are commonly used for heat-treatment of fiber yarns. In such systems, the roll-surface tem perature is a critical process variable. In this paper, heat transfer from a rotating roll is analyzed, using the literature on heat transfer from rotating cylinders and disks. Equations are developed to relate the roll-surface temperature to other process variables. Comparison with some experimental measurements is also presented. These measurements show a significant nonuniformity of temperature on the roll surface.
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