Abstract

The purpose of this study is to find optimal conditions for various outlet clearances of prototype garlic clove separator with a rotating cone in the constant inlet clearance and cone height. Optimal outlet clearance from medium to small size garlics was 25 mm at the <TEX>$200{\sim}400rpm$</TEX>. For large garlic, optimal outlet clearances of Namdo and Uiseong garlic were 34 mm and 37 mm, respectively, in the range of <TEX>$300{\sim}400rpm$</TEX>. The proportion of garlic separation was over 95% for all quality of garlics. The proportions of damaged garlics at 25 mm and 28 mm outlet clearances were below 5% and below 10%, respectively. Therefore, in order to maintain high performance of garlic separation for the various varieties and qualities, the rotating cone type separator should be designed with cone speed ranges of <TEX>$200{\sim}400rpm$</TEX> and the outlet clearance ranges of <TEX>$25{\sim}37 mm$</TEX>. The outlet clearance of the separator should be easily controlled within those ranges.

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