Sample Projects
Choose the project and open it with IrriPro, many have been made in the field. You can edit the file, evaluate the hydraulic results and export the reports
Sectors : 1
Shifts : 1
Survey : none
No. of emitters : 2244
Type : drop
Flow rate : 4 L / h (0.88 gph)
Arrangement : 1×1.5m (3.3×4.9ft)
Extension : 0.3 Ha / 0.8 Ac
Calculation : automatic
Simple case of system consisting of a single rectangular sector with a slope of 3%. The automatic calculation determines at the source a pressure of 1.38 bar (20 PSI) and a flow rate of 12 mc / h (44 gpm). The result of the hydraulic simulation shows plant areas with unacceptable uniformity and a coefficient (Keller and Karmeli) equal to 91.35 %. This case demonstrates how a coefficient greater than 90% does not correspond to an acceptable variation of the delivered flow rates.
Sectors : 6-12
Shifts : 1
Survey : none
No. of emitters : 37000
Type : drop
Flow rate : 2.6 L / h (0.57 gph)
Arrangment : 1.2×0.7 m (3.9×2.3 ft)
Extension : 34 Ha / 84 Ac
Calculation : fixed pressure
Example of a group of greenhouses fed with a pressure set at 3.2 bar (46 PSI). By acting on the only valve present, it is possible to supply 6 or 12 sectors. This project simply demonstrates how the use of same blocks (i.e. made up of the same number of elements and features) shows a variation in the hydraulic quantities moving from one part of the system to the other: using the same scheme can lead to different and not acceptable results.
Each added greenhouse will show different results than the other greenhouses and the pre-existing greenhouses will show a variation from the condition prior to adding the greenhouse.
Sectors : 1
Shifts : 1
Survey : cartography
No. of emitters : 12,000
Type : drop
Flow rate : 4 L / h (0.88 gph)
Arrangment : 2×1.5m (6.6×4.9ft)
Extension : 3.7 Ha / 9.1 Ac
Calculation : automatic
Design of a vineyard system on 1: 10,000 cartography with manually drawn contour lines and automatically processed slopes. The source delivers a flow rate of 40 mc / h (146.7 gpm) at a pressure of 1.4 bar (20 PSI). To lighten the design and keep the reliability of the hydraulic calculation results high, an average discretization was used (grouping of 4 emitters at each delivery point). At the end of the hydraulic calculation it is possible to observe a variation in the delivered flow rates from 3.9 l / h to 3.0 l / h (24%) and a variation in pressures from 1.5 bar to 0.9 bar with the maximum head loss of 4.0 m (13 ft). The uniformity coefficient is 82.3%, not acceptable. It is likely that a division into several sectors (and therefore more shifts) can improve results and consistency.
Sectors : 4
Shifts : 4
Survey : Google Maps
No. of emitters : 3,800
Type : drop
Flow rate : 4 L / h (0.88 gph) Arrangment : 2×6 m (6.6×19.7 ft)
Extension : 4.7 Ha / 11.6 Ac
Calculation : with pump 3.7 mc / h
Arboretum plant consisting of 4 sectors, powered by a pump whose characteristic curve is known, with 1 sector working for each shift. The project was developed on a 3D survey processed by the Google Maps service (console inside IrriPro) which shows an average slope of 3% in the direction of the drip lines. The drip emitters are pressure-compensated and allow conditions of excellent uniformity (around 99%). Thanks to the hydraulic calculation for each shift it is possible to evaluate the relative duty point equal to about 3.7 mc / h (13.6 gpm) at a pressure of 2.5 bar (36 PSI) by crossing the pump data (flow rate graph -prevalence) with those of the system (flow-pressure graph).
Sectors : 6
Shifts : 6
Survey : Google Maps
No. of emitters : 1.900
Typology : rain
Flow rate : 600 L / h (132 gph)
Range : 6 m (19.7 ft)
Arrangment : 6×6 m ( 19.7 x19.7 ft)
Extension : 6.4 Ha / 11.6 Ac
Calculation : automatic
Arboretum system divided into 6 shifts (with one sector per shift) with sprinklers and rectangular distribution. The devices have a 360 ° coverage angle inside the terrain and a 180 ° angle for the perimeter ones. The automatic calculation determines at the source a pressure of 1.8 bar (26 PSI) and a variable flow rate per shift between 123 and 191 mc / h (451-700 gpm).
The result of the hydraulic simulation shows an unacceptable uniformity coefficient (WU) of 84% and an efficiency of 40%. Low efficiency also demonstrated by the variation of the flow rate from 290 to 626 L/h per sprinkler (64-138 gpm).
Sectors : 26
Shifts : 6
Survey : Google Maps
No. of emitters : 500
Typology : rain
Flow rate : 1920 L / h (422.3 gph)
Range : 16.2 m (53.2 ft)
Arrangment : 18 × 18.6 m (59.1×61 ft)
Extension : 15.3 Ha / 37.8 Ac
Calculation : automatic
The coffee plant project was developed on a 3D survey processed by the Google Maps service on a total area of about 30 Ha (74 BC). The plant is divided into 6 shifts, with sprinklers and rectangular distribution. The sprinklers inside the terrein and the perimeter ones both have a coverage angle of 360 ° but belong to two different models. The automatic calculation determines at the source a variable pressure per shift from 4.56 bar (66.14 PSI) to 6.87 bar (99.64 PSI) and a variable flow rate per shift between 120.08 and 153.63 mc / h (439.94-563.23 gpm).
The result of the hydraulic simulation shows an acceptable coefficient of uniformity (WU) greater than 90%.
Sectors : 25
Shifts : 6
Survey : Google Maps
No. of emitters : 45000
Type : drop
Flow rate : 1.3 L / h (0.3 gph)
Arrangment : 1.5 × 0.3m (4.9×0.98ft)
Extension : 25 Ha / 62 Ac
Calculation : fixed pressure
Plant for a field planted with tomatoes with an extension of 25 Ha (62 BC). The project uses a high discretization (12 dispensers per group) in order to process the results faster. The pressure available at the source is not enough to reach all sectors (in particular the 6 sectors furthest from the source).
Probably the use of pressure-compensatied emitters will fix the lack of uniformity. In the image of the material list the number of coils of the main line, of the dripline and all the other elements that make up the system.
Sectors : 75
Shifts : 75
Survey : Google Maps
No. of emitters : 60000
Type : drop
Flow rate : 4 L / h (0.88 gph)
Arrangment : 1 × 2.3m (3.3×7.5ft)
Extension : 75 Ha / 185 Ac
Calculation : fixed pressure
Example of a project on a large extension. The survey involved a total area greater than 4000 Ha / 9884 BC (with a side of 6400 m / 21000 ft). The contour lines show elevations and slopes, including the shores of the lake in the Northeast area. The surface to be irrigated was obtained by dividing the affected area with 75 sectors of the same size (1 Ha / 2.47 Ac each) each fed by a flow rate of about 35 mc / h (128 gpm). The result of the hydraulic simulation shows the variation of uniformity between one sector and the adjacent one: in this case the designer will have to carry out further interventions such as the modification of the diameters, the use of pressure-compensated emitters or pressure adapters. To lighten the design and the calculation, an average discretization was used.
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