Studies on Engineering Properties of Maize for Development of Maize Dehusker Cum Sheller

Author: Atul R. Dange, R.K. Naik, A.K. Dave and Geeta Patel*

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Abstract

The study has been conducted to investigate the physical and engineering properties of popularly grown varieties for maize seed, cob and whole cob. BIO-22027, JK-502 and Pioneer-3396 varieties were selected for the study within the moisture range of 10 to 14 % (d.b). The linear dimensions i.e. length, width, thickness and geometric mean diameter (GMD) of maize grain increased with increase in moisture content for all three varieties. However, the highest length, width and thickness were observed for the Pioneer-3396 variety as 11.73 mm, 8.99 mm 6.12 mm and 7.15 mm respectively. However, the highest sphericity, TGW and true density were observed as 0.728, 209.65g and 1.64g/cm³, respectively at moisture content of 14 % for the Pioneer-3396 Variety. Bulk density of maize grain and cob decrease with increase in moisture content.The highest angle of repose, coefficient of friction at MS sheet, rubber and glass surface, terminal velocity for grain and cob were observed 25.51˚, 0.

Keywords

physical property, maize seed, maize cob, moisture content, engineering properties.

Conclusion

It was concluded that the mean value of linear dimensions like length, width, thickness and geometric mean diameter (GMD), sphericity, true density of maize seed increased with increase in moisture content for all three varieties. Whereas bulk density of maize grain and cob decrease with increase in moisture content However, the highest true density and lowest value of bulk density of grain and cob were observed for the Pioneer-3396 of maize as 1700 kg/m3, 0.70 g/cm3 and 370.17 kg/m3 respectively at moisture content of 14 %. 2. The highest angle of repose, coefficient of friction at GI sheet, MS sheet and plywood surface, terminal velocity were observed 25.51°, 0.54, 0.56, 0.43, 15.06 m/s and 1.57 m/s at 15 % moisture content. 3. The maximum rupture force required to deform the maize grain and cob was found to be 18747.63 g (183.85 N), and 26825.28 g (262.88 N). 4. The mean value of physical property of whole maize cob diameter and length was found at bottom, middle and top was

References

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How to cite this article

Dange, A.R., Naik, R.K., Dave, A.K. and Patel, G. (2021). Studies on Engineering Properties of Maize for Development of Maize Dehusker Cum Sheller. Biological Forum – An International Journal, 13(3a): 598-604.