Some Engineering Properties of Breadfruit Seed Varieties Relevant to Handling

Arid Zone Journal of Engineering, Technology and Environment

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Field Value
 
Title Some Engineering Properties of Breadfruit Seed Varieties Relevant to Handling
 
Creator Abodenyi, V. A.
Kaankuka, T. K.
Irtwange, S. V.
 
Subject Breadfruits seed
Terminal velocity
Drag coefficient
Percentage porosity
 
Description Determination of some engineering properties of two varieties of breadfruit seeds (Var. Africana and Var. Inversa) was carried out.  The initial moisture content was 6.85% and later adjusted by rewetting to 14.85%, 21.85% and 28.85% (wb). The following engineering properties, true density, bulk density, percentage porosity, specific heat capacity, terminal velocity and drag coefficient were determined. Thermal property (specific heat capacity) of the seed was determined using the calorimeter method. The aerodynamic properties (terminal velocity and drag coefficient) were also determined by using an air column made of a vertical wind tunnel in conjunction with a voltage regulator to vary the wind speed and a digital anemometer to determine the air speed. Data obtained were statistically analyzed using Minitab statistical software. The following results were obtained. The true density of Var. Africana decreased from 1033.68 kg/m3 to 842.81 kg/m3 which amounted to 18.5% decrease, while for var. Inversa it decreased from 948.38 kg/m3 to 911.89 kg/m3 amounting to 3.85% decrease as the moisture content increased from 6.85 to 28.85%. The bulk density was observed to increase linearly as the moisture content increased.  It increased from 361.239 to 408.723 kg/m3 for Var. Africana and 317.55 to 387.638 kg/m3 for Var. Inversa.   The porosity of Var. Africana ranges from 65.06% to 51.6% while for Var. Inversa it ranges from 66.5% to 57.2%.  The terminal velocity increased from 5.5 to 8.0 m/s for Var. Africana and 3.89 to 6.8 m/s for Var. Inversa respectively as the moisture content increased from 6.85 to 28.85 %.
 
Publisher FACULTY OF ENGINEERING, UNIVERSITY OF MAIDUGURI, NIGERIA
 
Date 2020-02-23
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://azojete.com.ng/index.php/azojete/article/view/115
 
Source ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT; Vol. 14 No. SP.i4 (2018): AZOJETE - CIGR Section VI Special Issue: Innovation & Technologies for Sustainable Agricultural Production & Food Sufficiency; 41-50
2545-5818
1596-2490
 
Language eng
 
Relation https://azojete.com.ng/index.php/azojete/article/view/115/82
 
Rights Copyright (c) 2018 ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT
https://creativecommons.org/licenses/by-nc-nd/4.0
 

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