Effect of Operational Parameter on the Bulk Density of the Rotary Blades (L and J- Shape Blade)

Author: Yalaka Nandini, Atul Kumar Shrivastava, Avinash Kumar and Rohit Namdeo

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Abstract

A research investigation aimed to determine the optimal combination of commercially available L and J-shaped rotary blades concerning blade speed (75, 100, and 125 rpm), operating depth (3, 6, 9 cm), and forward motion speed (1, 1.5, 2 km/h) in vertisol soil. Following the rotary blades' pass, the various treatment combinations were assessed. It is so difficult to find out the soil parameters in laboratory condition, due to the factor affect on the blades while in operational condition. All the tests were carried out as per the Indian standard and after following the correct methodology to obtained the findings. Results indicated that J-shaped blades resulted in lower bulk density compared to L-shaped blades at a rotary speed of 110 rpm, forward speed of 1.5 km/h, and an operating depth of 8.25 cm for the J-shaped blade. The predicted mean bulk density for J-shaped blades was 1.441 g/cm³. In contrast, L-shaped blades exhibited higher bulk density than J-shaped blades. Overall, the J-shaped blade proved more effective for pulverization operations compared to the L-shaped blades.

Keywords

L shape blade, J shape blade, Rotary rpm, Forward speed, Bulk density.

Conclusion

Bulk density exhibits a decrease with an increase in the depth of operation and forward speed of motion, while it increases with an increase in rotor speed. This decline is attributed to the diminished soil interaction time resulting from higher machine speed, leading to less thorough mixing, clod breakage, and compaction, ultimately yielding lower bulk density. Optimal weeding and tillage were observed at 110 rotor rpm, 1.5 km/h forward speed, and a depth of operation of 8.25 cm, specifically with the J-shaped blade. The predicted mean bulk density, determined after analysis, was 1.441 g/cc. In comparison, the L-shaped blade resulted in higher bulk density than the J-shaped blades. Notably, the J-shaped blade demonstrated higher effectiveness, particularly in pulverization operations.

References

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How to cite this article

Yalaka Nandini, Atul Kumar Shrivastava, Avinash Kumar and Rohit Namdeo (2023). Effect of Operational Parameter on the Bulk Density of the Rotary Blades (L and J- Shape Blade). Biological Forum – An International Journal, 15(10): 912-917.