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    Abstract
2009 (Vol. 1, Issue: 3)
Article Information:

Effect of Moisture Content on Some Physical Properties of Paddy Grains

H. Zareiforoush, M.H. Komarizadeh and M.R. Alizadeh
Corresponding Author:  Hemad Zareiforoush 

Key words:  Agricultural equipment, moisture content, paddy grain, physical properties, variety, ,
Vol. 1 , (3): Page No: 132-139
Submitted Accepted Published
2009 July, 13 2009 July, 28
Abstract:

The moisture-dependent physical properties of agricultural grains are important to design post harvest equipments of the product. In the current study, various physical properties of two different paddy cultivars were determined at five moisture content levels of 8, 11, 14, 18 and 21% (d.b.). In the case of Alikazemi cultivar, the average length, width, thickness, equivalent diameter, surface area, volume, sphericity, thousand grain mass and angle of repose increased from 9.83 to 10.05 mm, 2.65 to 2.76 mm, 1.92 to 2.01 mm, 3.72 to 3.85 mm, 39.37 to 42.12 mm2, 26.91 to 29.94 mm3, 37.51 to 38.04%, 27.63 to 31.20 g and 35.67 to 41.23, respectively, as the moisture content increased from 8 to 21% (d.b.). The corresponding values increased from 10.20 to 10.25 mm, 2.31 to 2.40 mm, 1.85 to 1.92 mm, 3.53 to 3.63 mm, 36.87 to 38.61 mm2, 23.12 to 25.11 mm3, 34.53 to 35.27%, 24.43 to 27.80 g and 38.27 to 44.37, respectively, for Hashemi cultivar. For Alikazemi cultivar, the static coefficient of friction of grains increased linearly against three various surfaces, namely, glass (0.3168-0.4369), galvanized iron sheet (0.4179-0.4965), and plywood (0.4394-0.5264) as the moisture content increased from 8 to 21% (d.b.). The corresponding value for Hashemi cultivar increased from 0.3577 to 0.4650, 0.4629 to 0.5082 and 0.4857 to 0.5452, respectively, against three mentioned surfaces.
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  Cite this Reference:
H. Zareiforoush, M.H. Komarizadeh and M.R. Alizadeh, 2009. Effect of Moisture Content on Some Physical Properties of Paddy Grains.  Research Journal of Applied Sciences, Engineering and Technology, 1(3): Page No: 132-139.
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