Effect of pair connection of end laterals in drip irrigation system on system hydraulic properties

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Nikbakht Jafar; Karami Sabah

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Journal: Journal of Water and Irrigation Management Year:2017 | Volume:7 | Issue:1 Page(s): 17-28

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Title

Effect of pair connection of end laterals in drip irrigation system on system hydraulic properties

Author(s)

Nikbakht Jafar | Karami Sabah | Issue Writer Certificate

Keywords

changing of laterals layoutQ1

Christiansen’s Uniformity coefficientQ1

coefficient of variabilityQ1

emission uniformityQ1

evaluation of drip irrigation systemQ1

Abstract

In this research, effect of lateral ends connection as pairs on hydraulic properties of drip irrigation system was investigated. To perform the experiment, a drip irrigation system was constructed on flat plot with dimensions of 80m × 90m in Zanjan University Research Farm. The test was done in two different conditions including none (N. C. ) and pair (P. C. ) connection of lateral ends and at three system operating pressures including 0. 5, 1. 0 and 1. 5 bar. The used emitter type was in-line long path with 4 LPH discharge and 1. 0 bar operating pressure. Based on results, at 0. 5 bar operating pressure, pair connection of lateral ends caused decreasing of variability coefficient from 13. 1% to 10. 7%, increasing of emission uniformity from 82% to 85% and increasing of Christiansen’ s uniformity coefficient from 89% to 91%. At 1. 0 bar operating pressure, the amounts of CV, Eu and Uc changed from 9. 1, 90 and 92% (respectively) in N. C. condition to 4. 9, 95 and 96% (respectively) in P. C. condition. Amounts of CV, Eu and Uc parameters in P. C. condition and 1. 5 bar operating pressure were 5. 5%, 93% and 96% (respectively) and in N. C. condition were obtained 9. 7%, 87% and 93% (respectively). Considering the results of current research, pair connection of lateral ends was improved drip irrigation system technically and hydraulically.

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APA: Copy

Nikbakht, Jafar, & Karami, Sabah. (2017). Effect of pair connection of end laterals in drip irrigation system on system hydraulic properties. JOURNAL OF WATER AND IRRIGATION MANAGEMENT, 7(1 ), 17-28. SID. https://sid.ir/paper/240098/en

Vancouver: Copy

Nikbakht Jafar, Karami Sabah. Effect of pair connection of end laterals in drip irrigation system on system hydraulic properties. JOURNAL OF WATER AND IRRIGATION MANAGEMENT[Internet]. 2017;7(1 ):17-28. Available from: https://sid.ir/paper/240098/en

IEEE: Copy

Jafar Nikbakht, and Sabah Karami, “Effect of pair connection of end laterals in drip irrigation system on system hydraulic properties,” JOURNAL OF WATER AND IRRIGATION MANAGEMENT, vol. 7, no. 1 , pp. 17–28, 2017, [Online]. Available: https://sid.ir/paper/240098/en

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