Somchai Chuan-udom and Winit Chinsuwan

pp. 221 - 225

Abstract

The objective of this research was to study the effects of operating factors of an axial flow rice combine harvester on
grain breakage, which comprised rotor speed (RS), louver inclination (LI), grain moisture content (MC), feed rate (FR), and
grain to material other than grain ratio (GM). The study was conducted on Khao Dok Mali 105 and Chainat 1, which are the
two important rice varieties of Thailand. The results of this study indicate that for both of these varieties, the MC and the RS
affect the amount of grain breakage. On the contrary, the LI, the FR, and the GM do not have any effect. The MC was found
to have a greater impact on grain breakage than the RS of Khao Dok Mali 105, whereas the RS has a greater effect on
Chainat 1 grain than the MC.