000 02390cam a2200337 a 4500
003 EG-GiCUC
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008 150317s2014 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.07.02.M.Sc.2014.Ma.T
100 0 _aMajdi Mohamed Esseid
245 1 0 _aTechnical and economic analysis towards assessment of agricultural tractors in Libia /
_cMajdi Mohamed Esseid ; Supervised Sami Mohamed Younis , Gamal Eldeen Mohamed Nasr
246 1 5 _aتحليل فني وإقتصادي لتحديد إحتياجات الزراعة من الجرارات في ليبيا
260 _aCairo :
_bMajdi Mohamed Esseid ,
_c2014
300 _a100 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Agricultural Engineering
520 _aThe aim of this investigation was to find out the optimum tractor power requirement under Libyan agricultural conditions in order to suggest the most suitable tractor power for the majority of Libyan farmers. In addition to the economic analysis of the different tractors and elements when executing agricultural operations. A comparison was carried out between two tractor power level, 47HP and 75HP. The tested parameters were drawbar pull, slip percentage, fuel consumption, and maneuverability. The lowest wheel slip percentage was recorded with tractor 47HP when operating all implements except with the chisel plough 2nd pass. Also it was clear that, there was significance different between the mechanical elements with different types of power that the lowest wheel slip percent was obtained by chisel plough 1st pass and land leveler. It was clear that the tractor 75HP when currying different equipment, that the fuel consumption l/h was higher than the tractor 47 HP. The actual field capacity of tractor 75HP was significantly higher than the tractor 47HP with different implements
530 _aIssued also as CD
653 4 _aAgricultural tractors
653 4 _aChisel plough
653 4 _aMouldboard plough
700 0 _aGamal Eldeen Mohamed Nasr ,
_eSupervisor
700 0 _aSami Mohamed Younis ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aAml
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c49893
_d49893