Abstract
The purpose of the present study is to develop and evaluate a sprinkler irrigationsystem based on its design criteria to minimize friction loss, pressure head variation, and specificenergy and maximize water uniformity distribution. The system was developed from single inlet openlateral (SIOL) to double inlet closed lateral (DICL). Experiments were conducted to study twodifferent parameters (lateral length and irrigation water inlet method to lateral line) affecting theperformance of the developed system. The system performance was evaluated in terms of waterdistribution uniformity, coefficient of uniformity, pressure head variation and specific energy. It wasconcluded that pressure head variation and specific energy were significantly decreased while waterdistribution uniformity was improved with DICL compared to SIOL at all lateral lengths. The laterallength of 165m with DICL was recommended to be used as they achieved acceptable distributionuniformity, coefficient of uniformity and pressure head variation values which were 75%, 81% and18%, respectively.
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