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Farklı Nem Düzeylerinde Kanola Tohumlarının Fiziksel Özelliklerinin Belirlenmesi
(Determination of the Physical Properties of the Canola Seeds in Different Moisture Content Levels )

Author : Metin GÜNER  Refi Ratip ÖZLÜ  
Type :
Printing Year : 2016
Number : 2016-Ek Sayı
Page : 10-24


Summary
Bu araştırmayla,pnömatik iletimlerinde %6.36, 16.54 ve 25.94 şeklindeki üç farklı nem düzeyinin kanola tohumunun fiziko-mekanik özellikleri üzerine etkileri incelenmiştir.Turan kanola çeşidi materyal olarak kullanılmıştır. Araştırmayla kanolanın uzunluk, genişlik, kalınlık, çap, projeksiyon alanı ve geometrik ortalama çap gibi boyut özellikleri ile hacim ağırlığı, özgül kütle, bin dane ağırlığı, porozite, küresellik, basıklık ve eşdeğer küre çapı gibi hacimsel özelliklerinin neme bağlı değişimi belirlenmiştir. Kanola tohumlarının dane hacmi ile bin dane ağırlıklarının nemle arttığı tespit edilmiştir. Kanola tohumlarınınprojeksiyon alanları iki farklı sayısal görüntü işleme yazılımı kullanılarak incelenmiştir. Araştırmada, özgül kütlenin kanola tohumunun nem içeriğindeki artışlarla artacağı, bunun yanında hacim ağırlığının ise dane nem içeriğindeki artışlara bağlı olarak azaldığı gözlenmiştir. Benzer şekilde, eşdeğer küre çaplarının, danenin nem içeriğiyle arttığı bulunmuştur. Nem içeriklerindeki artışa bağlı olarak kanola tohumlarının küreselliğindeki değişimler; nem içerikleri %6.36’ dan %16.54’ e gider iken artış yönünde, daha sonrasında nem içerikleri %25.94’ e çıktığında azalan seyir gösterdi.Tohumların basıklığındaki değişimlerin ise nem içeriklerindeki artışla azalarak arttığı saptandı.Kanola tohumlarının terminal hızları; nem içeriklerindeki artışlarla yükselerek giden logaritmik bir değişim eğilimi göstermiştir.

Turkish Keywords
Fiziko-mekanik özellik,kanola, nem, pnömatik iletim

Abstract
The purpose of the research was the studying of the effects of three different moisture contents constituting of 6.36, 16.54 and 25.94% on thephysico-mechanical properties of canola seeds. Turkish cultivar of canola seeds called as Turan was used in the research. With the research, it was found that the dimensional properties such as the length, diameter, projection area and geometric mean diameter and volumetric properties like the bulk density, one thousand seed mass, porosity and sphericity were changed with the increases in moisture content of canola seeds. One thousand kernel mass and kernel volume of canola seeds are determined to increase for the moisture contents examined as 6.36, 16.54 and 25.94%, respectively.The projection areas of canola kernels were investigated with two different digital image processing software developed for digital image processing and evaluation purposes, as well as with the mathematical formula given by Mohsenin(1986) and Sitkei(1986) according to the planes in the three dimensional space. In the study, true density was observed to increase with the moisture content increments in canola seed, while the bulk density of seed decreased with moisture content increments. Similarly, the equivalent spherical diameter of canola kernels was observed to increase with the moisture content. The variations on the sphericity of canola kernels depending on the moisture contents were as the increasing way while the moisture contents of canola seeds went from 6.36 to 16.54%, and then in decreasing way when they increased to 25.94%. Yet, it was seen that the variations of the oblatenessof the seeds decreasingly increase with the increases of moisture contents. Finally, terminal velocity of the canola seeds investigated with this study showed a logarithmic variation trend by increasing with the moisture content increases.

Keywords
Physico-mechanical property, canola, moisture,pneumatic conveying

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