Study of Engineering Properties of N-53 Onion Bulb

Author: Amita Gautam*, S.V. Jogdand, R.K. Naik and Jitendra Trivedi

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Abstract

ABSTRACT: Onion is one of the most widely produced vegetables in India. It is very important to know the properties of onion bulb to understand its behavior for design and development of machinery to handle the onion bulb. In this study various engineering properties of onion bulb were studied in prospect to design of onion digger cum separator. Throughout the experiment, an onion bulb of variety N-53 was used. The physical properties were measured namely polar diameter, equatorial diameter, thickness, geometric mean diameter, sphericity, shape index, aspect ratio, surface area, frontal surface area, cross sectional area, mass of onion bulb, bulk density, true density, porosity, moisture content of onion and also mechanical properties like angle of repose and coefficient of static friction were measured. There was linear relationship obtained between geometric mean diameter and mass of onion as the GMD increases the mass of the onion increase. Obtained properties of the onion bulb are

Keywords

Keywords: Onion bulb, physical properties, mechanical properties and geometric mean diameter.