DEVELOPMENT A PACKED VERTICAL DISK CORN SHELLER FOR RURAL DWELLER

Document Type : Original Article

Author

Assoc. Prof. of Ag. Eng., Fac. of Ag. Eng., Al-Azhar Univ., Cairo. Egypt.

Abstract

The main objective of this paper is to development of small corn Sheller for rural dweller at operated by using an electric motor. The effect of some parameter such as: operating speeds 229, 275 and 330 rpm and three sizes of corn cobs ( less than 45mm, 45 -50 mm and more than 50 mm) at average moisture content 13.81 % on shelling efficiency, unshelled kernels percentage, damage kernels percentage, shelling productivity, power consumption and total cost ( unit cost + criterion cost ) . The results revealed that, with increase of operating speed shelling efficiency decreased and productivity, unshelled percentage, kernels damage percentage and power consumption with all sizes of corn cobs increased. The heights shelling efficiency and Sheller productivity of (99.65, 99.61 and 99.48%) and (94.38, 127.02 and 138 kg/h) at operating speed 229, 275 and 330 rpm respectively with all sizes corn cob. It is recommended that the operating of the corn Sheller was 275 rpm achieve average shelling efficiency of 99.35 %, unshelled kernels of 0.65 %, damage kernels of 5.25 % , productivity of 98.8 kg/h and average total cost ( unit cost + criterion cost ) of 112.40 L.E/ton for sum the sizes corn cob. The total cost ( unit cost + criterion cost ) of 382.72 L.E/Mg were high when operating the corn Sheller manually.  

Main Subjects

References

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