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

Almeida, Alex Nunes de; Coelho, Rubens Duarte; Costa, Jéfferson de Oliveira; Farias, A. J. D.

doi:10.1590/1809-4430-eng.agric.v37n4p828-837/2017

Cited by 6 publications

(3 citation statements)

References 10 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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).…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

View full text Add to dashboard Cite

Irrigation is a useful tool to achieve a better productivity and quality foods, which contributes to a higher efficient use of agriculture land. Drip irrigation is characterized by higher application efficiency, providing an efficient control of the irrigation depth required. Moreover, it has advantages such as lower evaporation loss and higher crop yields when associated with fertigation. However, dripper clogging is pointed out by several authors as the main limiting factor for a rapid adoption of drip irrigation on a larger scale. Emitter clogging susceptibility depends basically on five parameters: water quality, filtration system, fertilizer quality, labyrinth architectural layout and maintenance procedures. The adoption of chemical treatments helps to control biological agents and precipitates, making it possible to minimize the risk of clogging. This paper aims to understand how drip clogging process occurs, providing scientific arguments and support on the development of a standardized test pattern, making progress in order to identify commercial emitters that are less susceptible to clogging under field conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

View full text Add to dashboard Cite

show abstract

“…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.…”

Section: Introductionmentioning

confidence: 99%

Irrigation Uniformity Optimisation of a Mini-Centre Pivot System

Salah¹,

Guerrah²,

Atia³

2021

Eng. Agríc.

View full text Add to dashboard Cite

In El Oued, southern Algeria, the traditional Mini-Centre Pivot System (MCPS) is widely used for the irrigation of agricultural crops, and its use has been growing continuously. However, these systems have a constant nozzle diameter along the lateral pipe, which affects productivity directly, besides decreasing both the quantity and quality of agricultural products by irrigation heterogeneity. Therefore, optimising the design of the MCPS nozzles is linked strongly to the desired uniform irrigation. This study aims to determine the optimal configuration of nozzles for high irrigation uniformity. To achieve this goal, a genetic algorithm was used for maximising the uniformity of MCPS-mediated irrigation. The optimisation is carried out according to water distribution modelling, calculation of the Heermann and Hein uniformity coefficient (CUH), and existing nozzle diameters. To verify the accuracy of the proposed model, three existing MCPS (60 m, 50 m, and 46 m in length) are investigated experimentally. The developed code findings in terms of CUH are in agreement with those obtained by experimental tests. The analysis indicated that the nozzle diameter should vary from 5 to 15 mm along the lateral pipe. In these optimal conditions, the CUH was improved by 29.77%, 33.99%, and 19.36%, respectively, for the existing 60, 50, and 46 m irrigation systems. The most obvious findings to emerge from this study is that using a genetic algorithm to optimise the design based on the nozzle size improves water application uniformity by more than 19% in terms of the CUH.

show abstract

“…Embora existam diversos trabalhos apresentando o sistema de irrigação por gotejamento móvel acoplado ao equipamento pivô central na literatura (HOWELL;PHENE, 1983;AMIR;DAG, 1993;OLSON;ROGERS, 2008;ALMEIDA, 2016;ALMEIDA et al, 2017), não estão disponíveis informações a respeito de danos aos tubos que são arrastados sobre o solo pelo sistema de irrigação móvel, tal como a possibilidade do entupimento dos emissores por fatores externos como a entrada de partículas de solo nos orifícios de saída da água dos gotejadores e danos mecânicos pela ação abrasiva do solo decorrentes do arraste contínuo das mangueiras sobre o terreno, assim como por fatores internos como a presença de partículas sólidas, precipitados químicos e microbiologia relacionados com a qualidade da água de irrigação.…”

Section: Introductionunclassified

Susceptibilidade ao entupimento de gotejadores de alta vazão arrastados sobre o solo na irrigação por gotejamento móvel

Almeida¹

View full text Add to dashboard Cite

Susceptibility of high flow drippers coupled to the Central Pivot irrigation systemThe use of irrigation has become increasingly popular among farmers in order to increase crop yields, but this practice may present honeations to the irrigator, which in turn needs to seek more and more irrigation systems that can be efficient and with low cost of operation. One system that has drawn attention is Mobile Drip Irrigation (IRGMO), this method uses the junction of two known systems, the drip (marked by great efficiency in water use) and the central pivot (marked by its versatility), in summary, the system relies on the exchange of sprinklers of the central pivot, by drip lines, which are dragged on the ground from the pivot movement, thus the occurrence of evaporation, drift to wind and surface flow (situation that can occur in the sperage) is reduced, even with flow emitters greater than 4 L.h-¹. However, there is still little information about the drag of leakers over the soil and expected characteristics for external damage, in addition to information on the need for filtering for this system and obstruction of the emitters. This work divided into two experiments: 1) tests two emisores (7.4 and 6.4 L.h-¹, A and B respectively) on different types of soils, using a mechanism to drag the hoses continuously; 2) verifies the susceptibility of two emitters (4.0 and 6.4 L.h-¹, C and B respectively) to the obstruction of sand particles (0.

show abstract

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

Cited by 6 publications

References 10 publications

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

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

Irrigation Uniformity Optimisation of a Mini-Centre Pivot System

Susceptibilidade ao entupimento de gotejadores de alta vazão arrastados sobre o solo na irrigação por gotejamento móvel

Contact Info

Product

Resources

About