Water distribution, discharge, sprinkler system, pressure head, hydraulic efficiency
Aims: The research describes the methods of conducting field studies
to evaluate the effectiveness of sprinkler irrigation systems and to design
them reliably. Also, the distribution of discharge in the irrigation system
across the territory and its losses are analyzed.
Study Design: Christiansen's coefficient of similarity, denoted as
"CU," is used to estimate the distribution of water from sprinklers.
Place and Duration of Study: The study was conducted at the
Department of “Hydraulics and Hydro Informatics”, “Irrigation and Melioration”
at “Tashkent Institute of the Irrigation and Agricultural Mechanization
Engineers” National Research University, between June 2021 and July 2022.
Methodology: Christiansen's coefficient of similarity
"CU" is carried out by studying three combinations according to the
Catch Can method: sprinkler height, sprinkler discharge, and pressure changes.
In order to determine the Christiansen coefficient, it is calculated using the
sum of experiments in taking into account the distribution of discharge
according to the height of the sprinkler at several different pressures. Based
on the method given above, the optimal height was determined in the assessment
of water distribution. Based on field experiments and their analysis, a graph
was created based on sprinkler height and flow distribution for discharge.
Results: The optimal height of the sprinkler was chosen from three
types including 0.5 m, 0.75 m, and 1 m. Among them, 0.75 m is chosen as the
optimal height of the sprinkler. As a result, the correlation coefficient is
the best one according to the pressure head (10 m, 12 m, 14 m, 16 m, 18 m, 20
m) and sprinkler height (0.5 m, 0.75 m, 1 m) and water distribution (between 11
m and 16 m).
Conclusion: From the results, we can calculate the water
distribution of the sprinkler system of 0.75 m height of the sprinkler under
different pressure heads. It is also good for designing and doing hydraulic
calculations of this system.
Author
(s) Details
Aybek
Arifjanov
Department Hydraulics and Hydroinformatics, “Tashkent Institute of
Irrigation and Agricultural Mechanization Engineers” National Research
University, 100000 Tashkent, Uzbekistan.
Lukmon
Samiev
Department Hydraulics and Hydroinformatics, “Tashkent Institute of
Irrigation and Agricultural Mechanization Engineers” National Research University,
100000 Tashkent, Uzbekistan.
Dilbar
Abduraimova
Department Irrigation and Melioration, “Tashkent Institute of
Irrigation and Agricultural Mechanization Engineers” National Research
University, 100000 Tashkent, Uzbekistan.
Khumora
Jalilova
Department Hydraulics and Hydroinformatics, “Tashkent Institute of
Irrigation and Agricultural Mechanization Engineers” National Research
University, 100000 Tashkent, Uzbekistan.
Please see the book here:- https://doi.org/10.9734/bpi/srnta/v1/2050
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