Optimization of specific energy consumption for compact-spun yarns

Abstract

A computer program has been designed to compute the value of the specific energy consumption in compact yarn spinning with variable spindle speed profile, considering all the spinning variables. It is proved that the specific energy has a minimum value at a defined spindle speed which depends on the yarn specifications, dimensions of the bobbin used, and speed profile. The program determines the value of spindle speed at which minimum specific energy is obtained. It is also found that the finer yarn count requires higher spindle speed and smaller ring diameter which leads to the minimum specific energy.