Performance of Rotating Spray Plate Sprinklers in Indoor Experiments

Sourell, Heinz; Faci, J.M.; Playán, E.

doi:10.1061/(asce)0733-9437(2003)129:5(376)

Cited by 40 publications

(21 citation statements)

References 6 publications

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“…Our results are also in accord with Sayyadi et al who reported that the deeper grooves in spray plate could bring longer wetted radii [20]. The obtained results were also consistent with findings based on radial features of FSPS [20,21] and RSPS [31].…”

Section: Same-nozzle-sprinkler Pipe Sectionssupporting

confidence: 93%

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Comparison of Water Distribution Characteristics for Two Kinds of Sprinklers Used for Center Pivot Irrigation Systems

et al. 2017

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Abstract:Sprinkler selection influences the water distribution uniformity of center pivot irrigation systems. The sprinkling uniformity of the center pivot is crucial for the yield and quality of crops on a large scale. Rotating and fixed spray plate sprinklers (RSPSs and FSPSs) are the two most popular types. However, sprinkler selection is mainly based on price, not on differences in performance between them. Under low-wind field conditions, the water distributions of individual RSPSs and FSPSs with different nozzles (2.78, 4.76, and 6.75 mm in diameter) were measured using a catch can method. Cubic spline interpolation was used for data conversion for FSPS measurements; the nozzle configuration model was used to simulate the water distribution of the same-nozzle-sprinkler pipe section and full circular irrigated areas in a simulated center pivot under three sprinkler intervals of 1.5, 3.0, and 4.5 m respectively. Results showed that (1) individual RSPSs distributed the most water around the sprinkler, whereas individual FSPSs distributed the most water over a ring-shaped region at the periphery of the sprinkler, and the wetted radii for RSPSs and FSPSs ranged from 4.88 to 7.05 m and from 5.02 to 6.85 m, respectively; (2) same-nozzle-sprinkler pipe sections of RSPSs distributed the most water around the central axes of the pipe sections, and their sprinkling uniformities were 44.7%-51.0%, whereas FSPSs distributed the most water over both sides of the axes symmetrically, and less water around the axes, with sprinkling uniformities of 40.3%-58.0%; and (3) the sprinkling uniformities of the full circular irrigated areas were 85.8%-91.7% and 85.8%-86.2% when using RSPSs and FSPSs, respectively, under different sprinkler intervals, and the uniformities were 3.1% and 6.2% higher using RSPSs than FSPSs with sprinkler intervals of 3.0 and 4.5 m, respectively. RSPS accommodated larger sprinkler intervals (>3.0 m) and maintained superior sprinkling performance when compared with FSPS.

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Section: Same-nozzle-sprinkler Pipe Sectionssupporting

confidence: 93%

“…Previous studies reported the water distribution characteristics of FSPSs [20,30] and RSPSs [21,31] separately under indoor conditions. Using a translational test device, Playan et al [32] measured sprinkling uniformity coefficients of 80% and 90% for RSPSs and FSPSs, respectively.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Water Distribution Characteristics for Two Kinds of Sprinklers Used for Center Pivot Irrigation Systems

et al. 2017

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“…This characteristic has been experimentally documented (Faci et al, 2001). Sourell et al (2003) analysed the water application resulting from an isolated four grooved Nelson R3000 Rotator, and performed simulations of overlapping to analyse its applicability to spray boom designs in the conditions of an irrigated area in Germany.…”

Section: Introductionmentioning

confidence: 97%

Characterizing pivot sprinklers using an experimental irrigation machine

Playán

Garrido

Faci

et al. 2004

Agricultural Water Management

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In this work, a fixed spray plate sprinkler (FSPS) and two rotating spray plate sprinklers (RSPS) were compared in terms of wetted diameter, wind drift and evaporation losses (WDEL), static water precipitation pattern and dynamic water application profile. An experimental irrigation machine reproducing a pivot section was constructed and used to perform experiments in static and dynamic (linear displacement) modes. Water application from FSPS often resulted in a bi-modal pattern, while RSPS produced bell-shaped or triangular patterns. At a nozzle elevation of 2.4 m and an operating pressure of 140 kPa the wetted diameter was 1.6 m larger for the RSPS than for the FSPS. The differences between the two RSPS amounted to 0.5 m on the average. Reducing the nozzle elevation from 2.4 to 1.0 m resulted in a 2.6 m decrease in the wetted diameter. The use of RSPS may result in reduced surface runoff losses, due to the increased wetted diameter and the reduced peak precipitation rate. WDEL for

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“…Performing the experiments in an indoor facility ensures a radial water distribution and avoids drift and losses (Sourell et al 2003). Measurements were made in the Indoor Sprinkling Laboratory at Jiangsu University.…”

Section: Laboratory Proceduresmentioning

confidence: 99%

Irrigation Uniformity With Complete Fluidic Sprinkler in No-Wind Conditions

Zhu

Yuan

et al. 2009

IFIP Advances in Information and Communication Technology

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Abstract:The Complete fluidic sprinkler was originally created by China. Irrigation uniformity in no-wind conditions was studied in this paper. Radial water distribution for complete fluidic sprinkler type 10 was got by experiment. MATLAB was used to establish computation program to change the radial data into net data. Three-dimensional water distribution figures for single sprinkler and combined sprinklers were figured out after the calculation of MATLAB. Combined uniformity coefficient of the complete fluidic sprinkler type 10 was simulated in combined spacing coefficient form 1 to 1.8.The maximal uniformity coefficient was 80.5% or 88.2% for rectangle or triangular combination respectively. Combined uniformity surpasses 75% when combined spacing coefficient was 1 to 1.7 in rectangle combination and 1.4 to 1.7 in triangular combination. A case study shows that the MATLAB is reliable for simulating water distribution in sprinkler irrigation.

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Performance of Rotating Spray Plate Sprinklers in Indoor Experiments

Cited by 40 publications

References 6 publications

Comparison of Water Distribution Characteristics for Two Kinds of Sprinklers Used for Center Pivot Irrigation Systems

Comparison of Water Distribution Characteristics for Two Kinds of Sprinklers Used for Center Pivot Irrigation Systems

Characterizing pivot sprinklers using an experimental irrigation machine

Irrigation Uniformity With Complete Fluidic Sprinkler in No-Wind Conditions

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