The Study of Factors for Rice Seed Cleaning Machine with Experimental Design Method

Abstract

This research aimed to study level factors for rice seed cleaning machine and find the linear relationship of factors with Plackett-Burman experiment design. The results obtained from the analysis employing the Plackett-Burman design illustrated that only two factors, The width of the rice release channel and the wind speed, had a statistically significant impact on deformation at a significant level of 0.05. Then 3^k factorial design with regression equation was consequently applied to analyze the width of the rice release channel at 1.0 ,3.0 ,5.0 cm. and the wind speed at 21.0 ,27.0 ,32.0 m/s. The optimal level of the rice release แhannel and the wind speed were 1.0 cm. and 21 m/s respectively. After the implementation, the rice seed cleaning machine will get an average of 18.9 kilograms of good seed from a total of 19 kilograms of good seed.