A software tool for appropriate design of center pivot irrigation system
2011
Al-Sayim, H.E., Nile Valley University, Darmali (Sudan). Faculty of Agriculture, Dept. of Agricultural Engineering | Saeed, A.B., University of Khartoum, Shambat (Sudan). Faculty of Agriculture, Dept. of Agricultural Engineering
The experiment was conducted in the River Nile Sate, Sudan, to develop a simulation model for designing a center pivot sprinkler irrigation system. A Visual Basic 6.0 program was utilized in the model application windows. The program was interactive to design a new system and/or evaluate an already designed system. The crop water requirement and the pipe size permitted to attain the target. The center pivot hydraulic characteristics and its hardware specifications were executed. Two center pivot systems at Ras Elwadi farm and the Jordanian Bashair project were used for model testing and verification during 2007/2008 season. With respect to the hydraulic characteristics and hardware specifications, it was found that the center pivot system discharges were 318.8 m3hrE-1 and 227.2 m3hEr-1 for Ras Elwadi farm and Jordanian Bashair project, respectively. The package of low drift nozzles (LDN) was 116 nozzles with 2.8 m spacing and 214 nozzles with 1.9 m spacing for Ras Elwadi farm and Jordanian Bashair project, respectively. The ratio of actual to calculate nozzle discharge and pressure were within the acceptable range of 0.82 to 1.13 and 0.97 to 1.17 for Ras Elwadi farm and 0.84 to 1.90 and 1.03 to 1.23 for Jordanian Bashair project
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