Hydraulic Performance Analysis of Drip Irrigation System Using Pressure Compensated Dripper at Low Operating Pressure

Abstract

Irrigation is the most important component in ensuring that crops can produce optimal yields. The use of drip irrigation can help farmers in providing water to crops in the amount required by the crop. Drip irrigation usually uses an uncompensated dripper and also a pressure compensated dripper. The use of an uncompensated dripper requires precise pressure to ensure a uniform flow for each dripper while the use of a pressure compensated dripper will also provide a uniform flow when operating pressure was used within the range specified by the dripper manufacturer. The purpose of this study is to evaluate the hydraulic performance of the drip irrigation system using low pressure compared to the minimum pressure recommended by dripper manufacturers. The pressure operation recommended by the manufacturer is 1.5-4 bars. This study uses pressures as low as 1 bar (low pressure), 2 bars, and 2.5 bars (recommended by manufacture) to operate this irrigation system. The volumetric approach was used to calculate each emitter's flow rate. Coefficient uniformity (CU), emission uniformity (EU), coefficient of variation (CV), and emitter flow variation (EFV) were the hydraulic parameters evaluated. The results show that CU, CV, and EU are in excellent classification, and the value for CU and the EU is more than 95 percent efficiency. The CV value is below 0.03 which is a very good classification. Meanwhile, emitter flow variation is 10% when operating at 2.5 bars and 2.0 bars and is considered the desirable classification. On the other hand, the emitter flow variation was reported at 6% for the 1 bar operating pressure and the classification was also recorded in the desirable classification. The results conclude that the use of low operating pressure compared to the minimum operating pressure proposed by the manufacturer can also operate in excellent condition according to the hydraulic parameters evaluated.

Design of Irrigation Channel Network Connectivity and Tertiary Channels in Menten Village, Rambutan District South Sumatra to Optimize Agricultural Land

“…This study's secondary data came from the BMKG Kenten station. Secondary data collection aims to be used in analyzing hydrology [4]. The secondary data needed for this research are; Rainfall data was used to analyze the need for irrigation water in Menten Village and disposal in flood discharge.…”

“…In increasing agricultural production to achieve national food, the Irrigation network plays an important role [3]. An irrigation network is a unit that includes channels, buildings, and complementary buildings that regulate water, including supply, distribution, collection, use, and disposal of irrigation water [4]. Research related to the performance of irrigation networks in Central Lampung shows That a good irrigation network can provide maximum service distribution water to meet plant water needs.…”

Hydraulic Performance of Low Pressure Drip Irrigation Appropriate for Smallholdings

“…One of the most difficult aspects of irrigation technology is to distribute water evenly and efficiently across a large area while utilizing the least amount of energy I AGRICULTURAL IRRIGATION AND DRAINAGE ENGINEERING possible (Perea et al, 2013;Ame, 2022). Most vegetables' root systems are found in the top layer of the soil and required frequent irrigation, thus, a drip irrigation system is the most efficient and economical for irrigation for vegetable production (Sharu, 2022). In addition, for increasing importance in wet areas, large amounts of water are lost due to leakage and evaporation, which represents the loss of a valuable resource at a high cost.…”

Research on Intelligent Maintenance Management Techniques for Ecological Protection of Beautiful Expressway Slopes

“…In this system, important equipment includes pressure-compensated drippers, automatic backwash filters, and unmanned systems. Pressure-compensated drippers not only have a long lifespan, but also labyrinth flow channel pressure-compensated irrigators have good irrigation uniformity and good anti-blocking performance [7] . Pressure-compensated drippers have antisiphon characteristics to prevent external debris from being sucked into the dripper.…”