Patterns of adjustment of guide vane inclination of axial flow rice threshing unit affecting on threshing unit losses and power requirement when thresh Chainat 1 variety

Abstract

 The objective of this study was to study patterns of adjustment of louver inclination of axial flow rice threshing unit affecting on threshing unit losses and power requirement when thresh Chainat 1 variety which is the most susceptible to the losses by the threshing units. Results of the study indicated that adjustment of guide vane inclination in the input range of threshing unit not affect on threshing unit losses, grain breakage and power requirement. Power requirement tended to increase rapidly when increasing of guide vane inclination in the output range of threshing unit. However, guide vane inclinations of 60 and 70 degree in the input and output range of threshing unit respectively should be used when the losses and the power are taken into consideration.