Methodology for Dimensioning of a Center Pivot Irrigation System Operating With Dripper Type Emitter

Abstract

ABSTRACT:In Brazil, the conventional center pivot is widely used for irrigation of agricultural crops and its use has grown continuously. However, when improperly managed, it facilitates the development of diseases in all parts of the plant, with a direct effect on productivity, besides favoring losses of water by evaporation. The drip may be an alternative, since it minimizes the losses and does not wet the aerial parts of the plants, thereby reducing the incidence of diseases. A new system called localized mobile drip irrigation (IRGMO) is being developed in an attempt to combine the practicality and rusticity of the center pivot with the efficiency and water savings of the dripping irrigation systems. This fusion system is the central pivot with drip irrigation system for water distribution in the soil surface. This study aims to present a calculation methodology for the design of IRGMO system and compare it with conventional systems. It is concluded that this methodology allows the design of the IRGMO and that this new technology allows a savings of approximately 99% in a number of drip tubes compared to the conventional system with fixed drip irrigation lines in the field.

Sustainable Water Management for Small Farmers with Center-Pivot Irrigation: A Hydraulic and Structural Design Perspective

“…Users can compare several sprinkler packages after verifying the basic target design parameters until the proper circumstances are obtained. Almeida et al [24] developed a novel technology called localized mobile drip irrigation (IRGMO) in an effort to combine the benefits and practicalities of a center-pivot system with the effectiveness and water-saving capability of drip irrigation systems in order to maximize water usage efficiency. Almeida et al [24] further observed that because drippers are so small, clogging occurrences can be more common than they are with sprinklers.…”

“…Almeida et al [24] developed a novel technology called localized mobile drip irrigation (IRGMO) in an effort to combine the benefits and practicalities of a center-pivot system with the effectiveness and water-saving capability of drip irrigation systems in order to maximize water usage efficiency. Almeida et al [24] further observed that because drippers are so small, clogging occurrences can be more common than they are with sprinklers. Baiamonte et al [25] recently examined the geometry of the watered zones of a CPIS fitted with rotating sprinkler guns, rather than the more typical drippers (IRGMO) or sprinklers.…”

Dripper clogging: emphasis on the problem and how to minimize impact

“…Low-flow emitters are more susceptible to variations in water quality, with the risk of emitter blockage, leading to failures in the uniformity of water distribution in the soil. In certain cases, higher flow emitters may also present clogging problems, usually related to low velocity throughout the emitter labyrinth, which can lead to particle deposition (Almeida et al, 2017;Coelho et al, 2022;Li et al, 2012).…”

Irrigation Uniformity Optimisation of a Mini-Centre Pivot System

“…Varlev (1988) presented a significant analysis and discussion on a particular form of the sprinkler head to define the optimal sprinkler spacing for various wind speeds and two different types of crops under Bulgaria's specific economic conditions. Almeida et al (2017) proposed a design measurement technique to compare a new system named localised mobile drip irrigation (IRGMO). This system was created to combine the practicality and rusticity of the centre pivot irrigation system with the reliability and water conservation of dripping irrigation systems with the traditional centre pivot system commonly used in Brazil.…”