The global climate change and its attendant effect on scarce water resources have further reduced the amount of water available for agriculture. Under this circumstance, the use of pressurized irrigation systems can be an option of enhancing the efficiency of water consumption. This study was therefore conducted to evaluate the performance of a new mini-sprinkler irrigation system. An experiment was conducted on the experimental farm of College of Agricultural Engineering and Technology, M. K. V., Parbhani. Four different commercially available makes of mini-sprinklers 5022-U. 427 G-AG Orange, 427 G-AG Green and Super-10 of different nozzle color with different nozzle sizes 2.4 x 1.8 mm, 2.8 mm, 3.2 mm and 2.4m m, respectively were tested at 100 cm stake height for their hydraulic performance in terms of pressure-discharge, pressure-radius of throw and pressure- average precipitation rate of single mini-sprinkler head relationships. The experiment was conducted at five different operating pressures of 2.0, 2.5, 3.0, 3.5 and 4.0 kg/cm2. Polynomial equation of the form Q = aH2 + bH + C were developed for all types of four mini-sprinklers to describe the pressure-discharge relationship. On the basis of this relationship 427 G-AG Green nozzle was found to be superior over other three nozzles. Pressure-radius of throw relationships was very well established by polynomial type equation of the form R = aH2 + bH + C and 427 G-AG Green nozzle was to be superior over other three nozzles. Average precipitation rate was found to be increases with increase in operating pressure.
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机译:全球气候变化及其对稀缺水资源的影响进一步减少了可用于农业的水量。在这种情况下,可以使用加压灌溉系统来提高用水效率。因此,进行了这项研究,以评估新型微型洒水灌溉系统的性能。在Parbhani M. K. V.的农业工程与技术学院的实验农场上进行了实验。小型洒水器5022-U有四种不同的市售产品。在100厘米桩高下测试了不同喷嘴颜色的427 G-AG橙色,427 G-AG绿色和Super-10的不同喷嘴尺寸,分别为2.4 x 1.8 mm,2.8 mm,3.2 mm和2.4mm。单个微型洒水喷头的压力-流量,抛物压力-半径和压力-平均降水率的关系。实验是在2.0、2.5、3.0、3.5和4.0 kg / cm2的五个不同的工作压力下进行的。针对所有类型的四个小型洒水喷头,开发了形式为Q = aH2 + bH + C的多项式方程,以描述压力-排放关系。基于这种关系,发现427 G-AG Green喷嘴优于其他三个喷嘴。通过多项式方程式,R = aH2 + bH + C可以很好地建立喷射关系的压力半径,并且427 G-AG Green喷嘴要优于其他三个喷嘴。发现平均沉淀速率随操作压力的增加而增加。
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