Functional performance of a vertical-shaft centrifugal palm nut cracker

A vertical-shaft centrifugal palm nut cracker was presented and evaluated. The cracker efficiency and kernel breakage ratio are some of the most important parameters for evaluating the cracker performance. From the result of this work, the two parameters are function of cracking speed, moisture cont...

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Main Authors: M.C. Ndukwu, S.N. Asoegwu
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2010-06-01
Series:Research in Agricultural Engineering
Subjects:
Online Access:https://rae.agriculturejournals.cz/artkey/rae-201002-0005_functional-performance-of-a-vertical-shaft-centrifugal-palm-nut-cracker.php
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author M.C. Ndukwu
S.N. Asoegwu
author_facet M.C. Ndukwu
S.N. Asoegwu
author_sort M.C. Ndukwu
collection DOAJ
description A vertical-shaft centrifugal palm nut cracker was presented and evaluated. The cracker efficiency and kernel breakage ratio are some of the most important parameters for evaluating the cracker performance. From the result of this work, the two parameters are function of cracking speed, moisture content and feed rate. The result showed that for the lowest speed of 1,650 r/min, and the highest feed rate of 880 kg/h and for all moisture contents, the cracking efficiency was not up to 65%, therefore the efficiency increases with an increase in machine speed and a decrease in feed rate. The kernel breakage ratio ranged from 0-0.18 (0-18%) for all feed rates and moisture contents. It increased with moisture content and cracking speed, but decreased with feed rate. All the parameters determined have a linear relationship with moisture content.
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spelling doaj.art-c78e11c968e34f74a158bb1baed92a472023-02-23T03:47:25ZengCzech Academy of Agricultural SciencesResearch in Agricultural Engineering1212-91511805-93762010-06-01562778310.17221/28/2009-RAErae-201002-0005Functional performance of a vertical-shaft centrifugal palm nut crackerM.C. Ndukwu0S.N. Asoegwu1Department of Agricultural Engineering, Michael Okpara University of Agriculture, Umuahia, NigeriaDepartment of Agricultural Engineering, Federal University of Technology, Owerri, NigeriaA vertical-shaft centrifugal palm nut cracker was presented and evaluated. The cracker efficiency and kernel breakage ratio are some of the most important parameters for evaluating the cracker performance. From the result of this work, the two parameters are function of cracking speed, moisture content and feed rate. The result showed that for the lowest speed of 1,650 r/min, and the highest feed rate of 880 kg/h and for all moisture contents, the cracking efficiency was not up to 65%, therefore the efficiency increases with an increase in machine speed and a decrease in feed rate. The kernel breakage ratio ranged from 0-0.18 (0-18%) for all feed rates and moisture contents. It increased with moisture content and cracking speed, but decreased with feed rate. All the parameters determined have a linear relationship with moisture content.https://rae.agriculturejournals.cz/artkey/rae-201002-0005_functional-performance-of-a-vertical-shaft-centrifugal-palm-nut-cracker.phpkernelcracking efficiencyfeed ratethroughput capacityshaft speedkernel breakage
spellingShingle M.C. Ndukwu
S.N. Asoegwu
Functional performance of a vertical-shaft centrifugal palm nut cracker
Research in Agricultural Engineering
kernel
cracking efficiency
feed rate
throughput capacity
shaft speed
kernel breakage
title Functional performance of a vertical-shaft centrifugal palm nut cracker
title_full Functional performance of a vertical-shaft centrifugal palm nut cracker
title_fullStr Functional performance of a vertical-shaft centrifugal palm nut cracker
title_full_unstemmed Functional performance of a vertical-shaft centrifugal palm nut cracker
title_short Functional performance of a vertical-shaft centrifugal palm nut cracker
title_sort functional performance of a vertical shaft centrifugal palm nut cracker
topic kernel
cracking efficiency
feed rate
throughput capacity
shaft speed
kernel breakage
url https://rae.agriculturejournals.cz/artkey/rae-201002-0005_functional-performance-of-a-vertical-shaft-centrifugal-palm-nut-cracker.php
work_keys_str_mv AT mcndukwu functionalperformanceofaverticalshaftcentrifugalpalmnutcracker
AT snasoegwu functionalperformanceofaverticalshaftcentrifugalpalmnutcracker