DESIGN OF A POP-UP SPRAY IRRIGATION SYSTEM FOR TURF LANDSCAPES USING AN EXPERT SYSTEM | ||
| Misr Journal of Agricultural Engineering | ||
| Volume 42, Issue 4, October 2025, Pages 211-228 PDF (1.19 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2025.403689.1161 | ||
| Authors | ||
| A. M. Abokora1; K. F. El-Bagoury2; O. M. Bedeer2; Z. M. Hendy* 3 | ||
| 1PhD Cand in Ag. Eng. Dept., Fac. of Ag., Ain shams U. Qalyubia, Egypt. | ||
| 2Prof. of Ag. Eng. Dept., Fac. of Ag., Ain shams U. Qalyubia, Egypt. | ||
| 3Assist. Prof. of Ag. Eng. Dept., Fac. of Ag., Ain shams U. Qalyubia, Egypt. | ||
| Abstract | ||
| Designing an irrigation landscape turf network using pop-up sprays and expert system programs involves integrating hydraulic principles, nozzle selection, spacing strategies, and software tools to optimize water efficiency and coverage. This study evaluates the performance of a sprinkler irrigation system at Al Azbakeya historical garden using two layout patterns, square and triangular, under varying operating pressures (150, 170, and 200 kPa). Performance indicators such as Distribution Uniformity (DU) and Christiansen’s Uniformity (CU) were analyzed. Results showed significant improvements in DU and CU with increasing pressure, particularly for the square layout, which achieved 90% DU and 93.74% CU at 200 kPa classified as excellent. In contrast, the triangular pattern reached only 86.35% DU and 75.10% CU, maintaining an acceptable range. To support irrigation design and management, the DOSEX program was used and validated against CROPWAT estimates. DOSEX produced irrigation run-times and component configurations closely matching those of CROPWAT, confirming its reliability. Furthermore, monthly water requirement analysis revealed that site-specific data produced by DOSEX better aligns with local climatic variations than generic calculations. Water saving analysis demonstrated that both DOSEX and CROPWAT showed increasing savings with higher pressures; however, DOSEX consistently reported slightly higher savings due to its use of localized, real-time weather data and optimization capabilities. At 210 kPa, water savings reached 11.2% with DOSEX versus 10.11% with CROPWAT. | ||
| Keywords | ||
| Pop-up sprinkler; Expert program; Runtimes; Actual water requirements | ||
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