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    IRRIGATION DESIGN SOFTWARE

Multilevel Ryadh Metro Station


The project concerns the irrigation system for green areas located at different altitudes in the Ryadh metro station (Qasr Al Hokm Downtown) and in particular:
  • the green areas and the palm trees placed immediately outside the station and at a level equal to the street level
  • the flowerbeds placed on terraces that go down together with the stairs between the zero and the approximately -5 m
  • the internal garden in the lower floor of the underground station at an altitude of about -30 m


The first two areas are supplied by two pumping systems placed at different depths where water treatment systems are installed. A series of hydraulic checks were carried out to assess the achievement of acceptable levels of uniformity, efficiency and quality of the irrigation service.

For the outdoor area there is a drop and rain system (with pop-up) supplied in a single shift, and equipped with pressure reducers in order to protect the system parts with lower nominal pressures. For the recommended pump, the operating point and the acceptability of the obtained efficiency have been identified. The consultancy carefully assessed the sizes and nominal characteristics of the pipes for the pressures and load losses involved. Particular attention has been paid to the wide central flowerbed irrigated with a dense network of dripping laterals in sub-irrigation.



 


For the internal garden at an altitude - 30 m, an irrigation system has been planned divided into two distinct shifts:
  • 1st round at the service of vertical gardens and pots with palm trees (with pop-up and drip system)
  • 2nd round at the service of drip irrigated flowerbeds.
Several parts are equipped with pressure reducers based on the operating pressure and the nominal operating conditions of the devices.
Several supply scenarios were evaluated from the pump at the lower levels, to define a collateral junction with 3 ascents towards the garden level in order to obtain a functional distribution and a layout of the pipes with minimum impact for the crossing of the structure and intermediate floors.
Also in this case the operating point and the acceptability of the pump efficiency have been calculated.

 

Landscaping and urban design

  

 

Irriworks is at your disposal to provide you with high-level design services and advanced tools for irrigation systems and networks. Our team of hydraulic engineers and highly specialized irrigation professionals can provide you with all the technical support and information necessary to design or verify any system.

Thanks to our expertise and to IrriPro software, we can know with precision the behaviour of the system before it is installed. In Irriworks we deal with green space service facilities in urban and extra-urban areas, from vertical gardens to multilevel structures. After the phase of acquisition of the plans, of the architectural plans and of the already planned systems, we analyze different usage scenarios in order to identify the solution that presents the best performances.

 

 


Based on the information received from the client, our team of engineers develops the project according to the required criteria and proposes various briefings for the presentation of the project to share the intermediate results and to plan possible corrections or changes to be made. Our engineering approach allows us to offer a consulting service for plants to be designed in complex conditions and structures, achieving results of maximum efficiency and functionality.

 

The goal of the service is the best possible customer satisfaction by providing the required documents, facilitating the understanding of the project and providing any support during the construction of the plant, in Italy and abroad.


Some samples of projects already made

RIYADH METROPOLITAN



SNAM TARSIA PLANT



 


As an alternative to consulting, we propose the purchase of IrriPro as a design tool, recommended for all technicians who frequently face the irrigation system project.

Today IrriPro is the most popular software on the market because it represents the easiest program to use and the most reliable support for the technician who wants reliable and rapid results.

  

Google Maps/Google Earth surveying

The surveying service uses cartography and elevation data of Google Maps/Google Earth (in order to extract the DEM*).

To use the service you need to:
    • Identify the area to be detected by typing the address or coordinates;
    • Choose from the drop down menu the number of points to detect: the larger is this value, the more accurate the survey will be;
    • Change the zoom and move the displayed area in order to identify the portion of the surface on which to perform the survey: the maximum detectable size is about 1600 hectares;
    • Click on "survey" to perform processing. After the process, you will see a grid above for each vertex the elevation in meters. You can then extract the DEM and satellite maps clicking on the appropriate buttons.
THE SERVICE IS FREE, CLICK ON NEXT TO CONTINUE

 
N E X T >>
 

(*) The DEM is the digital model of a 3D surface, ie the representation of the distribution of elevations on a ground in correspondence of an array of dots arranged at a predetermined spacing.
 
N.B.: The accuracy of the altimetric data varies from 3 arc-seconds (1 point every 90 meters) to 1/3 arc-second (1 point for every 10 meters), up to 1/9 arc-seconds (1 point every 3 meters) in the U.S. and in many urban areas. The service, made available from Google Maps and Google Earth, comes from the Shuttle Radar Topography Mission (SRTM) project (http://www2.jpl.nasa.gov/srtm/), U.S. Geological Survey (USGS) (http://www.usgs.gov/) and others cartographic service. By performing surveys on some sample areas (according to studies in Italy and Nigeria) it's showed a average error about altimetric data of 2,5 meters.. The mapping with satellite maps is always relative to the Google Maps service.

SNAM plant green area



The project involved the irrigation system for green areas within the SNAM plant at the Tarsia town.

The total area is about 12 hectares and is composed of green lawn beds. The terrain is purely flat. Through a well the water is collected in an accumulation tank that hydraulically separates the constant flow coming from the well and the irrigation system that requires higher flow rates and shorter durations. The pump that feeds the irrigation system from the accumulation tank has been sized for the different shifts so as not to exceed the volume of compensation.

The plant is composed of more than 3000 m of DN90 main pipelines and problems of different crossings for existing works have been tackled. Several sectioning solenoid valves have been inserted so as to divide the main network and command which sections to engage and which to exclude.






In order to manage the 19 shifts, made up of groups of sectors chosen to balance the flow rate around a set average value in the various shifts, 56 solenoid valves and two control units have been provided to control the valves and the pump in two groups.

The control units can be managed remotely.
The timing of the shifts was drawn up as to:

      • have a similar flow for each turn
      • cover irrigation within a day
      • verify the equivalence between the incoming and the outgoing volume from the supply tank 
      • simulate further hydraulic conditions.
The turf of the green areas is irrigated with more than 500 pop-up sprinklers (dynamic and static), while the perimeter part with hedges and shrubs is irrigated with dripping (self-compensating) laterals. The pluviometric overlap of wet circles and the uniformity of distribution was verified.
More than 40 pressure reducers have been inserted to keep the pressure below certain limits in some areas of the system (especially for the drip part which requires less pressure to operate).

In the project, different scenarios were assessed (some discarded due to lack of uniformity, efficiency and balancing of flow rates per shift), and finally chosen the one that at the same time reaches the daily requirement to irrigate the entire surface, has an adequate intensity of rain, an acceptable uniformity and is compatible with the conditions of compensation, volume and flow of the source.

Afield test

Analysis of irrigation uniformity by IrriPro (pub. on IJR)


The research study was conducted in a greenhouse at western region of Abu Dhabi UAE to check the operational reliability, efficiency, dependability and harmony of the existing drip irrigation system through IrriPro, our irrigation design software.

IRRIPRO was used in order to design and plan viable drip irrigation systems. This software is proficient enough in planning network layout, hydraulic designing and above all simulations to obtain results. This software can also provide requisite cost estimation of drip irrigation. 

Hydraulic estimation of drip irrigation system was based on a method defined by the ASAE (1999). Three emitters on a lateral were selected at the head, midpoint and tail-end and discharges were measured on them.

IRRIPRO has the diverse quality to calculate and design many other hydraulic parameters. It is a helping tool for water resource engineers in designing, testing, analyzing any other alternative design on precision and economical parameters. 





The comparative study revealed that the drip irrigation achieved high CU and DU which imply that the existing drip irrigation system was designed on the basis of proper scaling and dimensions. The CU on average basis for the system was found to be 96.4990% (observed) and 99.9796% (simulated) respectively. Similarly, the DU on average basis for the system was found to be 94.3605% (observed) and 99.8822% (simulated) respectively. EUa of the system using pressure compensated type emitters with the length of laterals 16 meters with an average observed and simulated value was found 99.2192% and 99.99316% respectively.




   

 


Conclusions of the study
The comparison of experimental and simulated results confirms that the application uniformity seems to be satisfactory and the existing drip irrigation unit was designed properly. The design of the existing drip irrigation network was checked by the interactive computer software i.e. IRRIPRO which was found acceptable. The uncertainty in results was found less than 10% which indicates its accuracy. IRRIPRO software also predicts that the ideal pressure for existing drip irrigation was 13.353 m c.a (1.29 atm) which gives 3.655 lit / hr flow rate for all emitters. As IRRIPRO is providing the ideal results for the existing drip irrigation system it will be more as compared to the field results. This software could also be used to calculate the annual costs of any system even if it is not designed by IRRIPRO.

For more details about research study you can see the full paper.




IJR (International Journal of Research IF 3,541) published the research paper named "ANALYSIS OF TRICKLE / DRIP IRRIGATION UNIFORMITY BY IRRIPRO SIMULATIONS"

 



Differences between measured and simulated values

(in collaboration with University)

Irriworks software was used (in collaboration with the Agrarian Faculty of the University of Palermo, measure 3.13 of POR Sicily PIT7) for an irrigation system at the farm called "Licata" in the City of Bompensiere (CL). The plant is costitued by 180 pressure compensated drip emitters, is located on a plot of about 0.6 ha, with slopes from 10% to 18%, and is planted with olive trees.

There are some differences between estimated values (simulated with the IrriPro software) and afield measured ones: no more than 9% for pressure and 6% for the discharge. The error is mainly due to constructive aspect of the emitter during factory production.

Estimated-measured pressure chart

For the same reason, the uniformity coefficient was equal to 94%, as assessed by IrriPro, compared to 91% measured in the field.
In short, the software IrriPro simulated very well the conditions of operation of the network.

The design commit you occasionally or for short periods? Choose the ON-DEMAND only for the time you need.

The solution for any need

IrriPro softwareIrriPro is available with FREEWARE license for small systems and with basic features, with fully featured for limited time or with never ending LIFETIME licenses.

USER-FRIENDLY INTERFACE

IrriPro has a CAD-style user friendly interface, designed to be used by engineers, agronomists and other technicians. They have all the analisys tool needed to estimate the consequences of any design choice and to represent the trend of any physical parameter.

WIDE DATABASE

The DB is not a list of passive elements, but a way to make the most of the software using existing material on the market.

QUALITY OF THE PROJECT

The irrigation software IrriPro is the only tool that optimizes the use of water and improves the distribution uniformity, increasing the system efficiency and ensuring the correct distribution of water and fertilizers. Moreover IrriPro reduces the system realization costs, improving quantity and quality of agricultural production.

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