Products & Applications Course Irrigation systems D&S IRRIGATION May 18, 2018

Transcription

1 Products & Applications Course Irrigation systems D&S IRRIGATION May 18, 2018

2 1. EVOLUTION OF IRR. TECHNOLOGY Data collection techniques. Sizing tools. Equipment and materials Design & Efficiency Application systems Automation Improved systems performance

3 2. UNITS, SYMBOLS & TERMINOLOGY GPS-Global Positioning System. ETo-Reference Evapotranspiration. ETc-Crop Water Requirement Kc-Crop factor Topography Irrigation application rate Infiltration capacity Hydraulic conductivity

4 Units, Symbols & Terminology.. Drip emitter. Emitter spacing Emitter discharge Irrigation requirement Precipitation. CWR Crop Water Requirement Irrigation efficiency

5 3. DRIP SYSTEMS Most precise system High efficiency Most suitable for water scarce areas Adaptable to any farming models Easily automated

6 3. DRIP SYSTEMS

7 Drip system components Supply (surface or well pump, gravity tank ) Filtration (screen, disc, media, cyclone, micro/ RO..) Mainline pipe, usually sized depending on total flow Hydrants-valves commanding an irrigation zone Submain pipe, connects drip tubes from the hydrant Drip off-take: seal connecting submain and drip Drip tube: is installed with regular spaced emitters for precise water application Drip endline: a stopper at the end of drip tube

8 Design considerations Source and quality of water (filtration considerations) System power requirements (Diesel, electric, gravity) Topography (general slopes) Crops grown Growing conditions: ghse, open field, propagation.. Soil type Area/Shape of land Irrigation water analysis Soil type (sandy, loam, clay)

9 Design process Survey work Drawing: simple sketch/gross irrigation area ClimWAT & CropWAT: Eto, Etc, K, T, Precip, Rain.. Total Flow: Row spacing, emitter spacing, total drip. Segment the land zones/blocks Pipe sizing (see Friction Loss Table). Select the emitter: based on flow and pressure. Valve sizing. Irrigation schedule

10 Friction loss calculation in piped systems Pipe sizing (Dia, x-section area) Flow rate (Q=VA) Flow velocity, V Pipe length Friction loss

11 Unveiling the DAYLIFF Drip brand

12 DAYLIFF drip features Roll length: 1,000m Wall thickness: 0.45mm (18 mil) Emitter spacing: 20,30,40,50 100cm Popular, on order: 20 & 30cm Emitter discharge: 1.2, 1.4, 2.3 lph Diameter: 12 & 16mm For surface use, horticulture Filtration: 120 micron UV treated

13 Bills of Quantities

14 Bills of quantities guide 1 - Tank outlet connection 5-1½ Ball valves 100m 50mm HDPE Pipe 150m 32mm HDPE Pipe 1 1½ Filter unit x 1½ PE Male adaptor 2 50mm PE Elbows 4 50 x ¾ PE Saddle clamps mm Start Connectors mm End plugs 5,000m 16mm Dripline

15 Drip classification Pressure compensated (or non-pc) Wall thickness (from 5mil) Emitter spacing (5,10,15,20 100cm) Emitter discharge (1.0lph 3.0lph) Diameter (8,12,16,17,20,22mm) Seam/seamless

16 . 4. SPRINKLER SYSTEMS Simple, cheap, easy to install and wide range of applications

17 Sprinkler heads. Rainguns Impact Part Circle Sprinkler Impact Full Circle Sprinkler Micro Sprinklers Mist Sprrayers Fog Sprayers

18 Applications Germination Cooling (humidity) Growing Misting Dust control

19 Sprinkler definition Discharge Radius Trajectory angle Operating pressure range Inlet size Construction material (plastic/metal) Wetting pattern Drop size Operating position (inverted/upright)

20 Forms of Sprinkler systems Pop-up (lawn) Fixed sets Centre Pivots Misting Fogging Travellers Centre Pivots

21 Bills of Quantities

22 Bills of quantities guide 1 Pump, suction/delivery & controls 4-1½ Ball valves 200m 50mm HDPE Pipe 6 50 x 1½ PE Male adaptor 2 50mm PE Elbows 6 50 x ¾ PE Saddle clamps 1 50mm PE End plug 6 Sprinkler heads, 1.2m³/hr, 3bar 6 Sprinkler riser pipes 6 Tripods

23 5. Hunter Systems Specialized sprinklers & sprays for: Lawn,. Golf, Parks, Residential, Stadia, Walkways

24 ROTORS

25 General rotor features Gear driven, strong, durable Unique nozzle design for uniformity Drain check valve inbuilt Pressure regulated body (PGP-U & I-20) Color coded range of nozzles Easy as-needed adjustments Opposing nozzle 360deg nozzle (I-40 & I- 90)

26 Hunter equipment Rotors PGJ, PGP, I-25, I-90 Sprays PS Side strip, MP Rotator, Pro-Spray Valves PGV 1, ICV 1½ & 2 Controllers/Timers X-Core, Pro-HC, Pro-C, Roam

27 Rotors & Sprays Hunter equipment Valves

28 , Control valves

29 Hunter Product Line - VALVES Quick specs

30 Hunter equipment - Controllers

31 Automation Controllers 1. X-Core 2,4,6,8 stns; Prg A,B,C 2. PRO-HC 6,12 (24,36 with expansion modules; Wi-Fi capability; Hydrawise software 3. PRO-C 4-16 stn; 3prg; 4strt times

32 Hydrawise Software Remote access Predictive watering Smartphone & web access Extensive system operation reports Compatible with: Pro-HC, HC & HPC

33 6. Other Irrigation systems Centre Pivots and Linear Moves Hose Reels Misting & Fogging systems

34 . Greenhouse Humidity/fogging system

35 Centre Pivot system.

36 Hose Reels Hose Reels

37 Thank you!