EFFECT OF VARIOUS OPERATIONAL AND DESIGN PARAMETERS ON THE PERFORMANCE OF A ROTARY FEEDING AND CUTTING SYSTEM
2010
There has been extensive research completed in the area of biomass cutting, specifically, cutting plant material. However, there has been very little research completed with a focus on rotary feeding and cutting system (RFCS). A RFCS is a hybrid cutter which employs characteristics of both a sickle type cutter and a precision type cutter. With limited data available on the factors that affect the performance of a RFCS it has been assumed that the factors that affect the cutting performance of a sickle type cutter or a precision type cutter have the same influence on the performance of a RFCS. To validate these assumptions laboratory tests were conducted to investigate the effect of counter-knife sharpness, rotor speed, and throughput on the specific energy required to process barley straw. It was concluded that the only statistically significant factor (p 0.05) was counter-knife sharpness. The specific energy requirements to process barley straw at an average moisture content of 13 % wet basis was 0.39±0.16** for a sharp counter-knife and 0.74±0.08** for a dull counter-knife.
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