EVALUATING THE PERFORMANCE OF A LOCALLY COMBINE FOR HARVEST WHEAT CROP | ||||
| Misr Journal of Agricultural Engineering | ||||
| Article 7, Volume 27, Issue 1, January 2010, Page 104-121 PDF (757.36 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjae.2010.106862 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M.H.M. Abo EL-Naga1; M.A. El-Said Shetawy.2; Sh.F Abed El-Hammed3 | ||||
| 1Senior Researcher, Agric.Eng. Res. Inst., Dokki, EL- Giza, Egypt. | ||||
| 2Lect. Agric. Eng. Dept. Fac. of Agric., Al-Azhar Univ. Egypt. | ||||
| 3Researcher,Agric. Eng. Res. Inst., Dokki, EL-Giza, Egypt | ||||
| Abstract | ||||
| Minimize of all harvest losses for wheat crop represent the important factor for upgrade harvest system The present study aimed to evaluate a locally combine for harvest wheat crop The experiments were carried out in Barkeen Village – Dakahlia Governorate during two seasons (2008 – 2009) for harvesting wheat crop (Sakha 93) at forward speed of 0.53, 0.70, 0.95 and 1.15 km/h, and at grain moisture contents of 16.73, 14.41 and 12.13 % during standard drum speed of 24.74 m/s. The pre-harvesting losses for (sakha 93) w as about 0.28% at grain moisture content of 12.13% , straw moisture content of 25.73% and daily times of 12PM.While,the highest value of total grain losses 2.08 % was obtained at forward speed of 1.15 km/h and grain moisture content of 16.73 %.The highest performance efficiency of machine 98.91% was obtained at forward speed of 0.53 km/h and grain moisture content of 12.13 % While, the highest cutting efficiency 94.81 % were obtained at forward speed of 0.53 km/h and grain moisture content of 12.13 %.The highest effective field capacity and efficiency (0.48 fed;/h and 78.38%) were obtained at forward speed of (1.15 and 0.53 km/h) and grain moisture content of 12.13 %, respectively. Whereas .the lowest value of energy requirements 311.01 kW.h/fed; was at forward speed af 1.15 km/h and grain moisture content af 12.13%, respectively. The lowest value of criterion cost 312.10 L.E / fed; were obtained at forward speed of 1.15 km/h and grain moisture content of 12.13% . | ||||
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