DETERMINATION OF THE MOISTURE-DEPENDENT PHYSICAL AND AERODYNAMIC PROPERTIES FOR FENUGREEK SEEDS TO PREDICT THE BEST CLEANING SYSTEM | ||||
| Misr Journal of Agricultural Engineering | ||||
| Article 14, Volume 30, Issue 3, July 2013, Page 831-844 PDF (993.24 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjae.2013.102021 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| H. H. Mohamed | ||||
| Ag. Eng. Dept., Fac of Agric. Saba Basha, Alexandria Univ., Egypt. | ||||
| Abstract | ||||
| Some physical and aerodynamic properties of fenugreek seeds were measured as a function of moisture content. The data obtained during experiments showed that there were significant deviations in all of the measured parameters for fenugreek seeds. Increasing seeds moisture content from 13 to 27%(w.b) resulted in increasing the average length, width, thickness, geometric mean diameter, seed volume and thousand seed weight from 4.29 to 5.13 mm, 2.97 to 3.11 mm, 1.87 to 2 mm, 2.87 to 3.17 mm, 19.5 to 26.6 mm3 and 15.6 to 19.2 g respectively, while sphericity and bulk density decreased from 67.4 to 61.9 % and from 800.6 to 722.2 kg/m3 respectively. The static coefficients of friction on wire mesh screen, the terminal velocity and the projected area increased from 0.43 to 0.56, from 6.6 to 8.11 m/s and from 0.11 to 0.14 cm2 respectively at the above mentioned moisture content range. A computer program was developed to calculate the number of cleaning stages according to the physical and aerodynamic properties of fenugreek seeds to maximize cleanliness, MOG rejected, separating efficiency and minimize seed loss. | ||||
| Keywords | ||||
| Aerodynamic properties; fenugreek seeds; density; terminal | ||||
| References | ||||
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