Design of Drip Irrigation System

More documents

Recommendations

Info

Design of Mainline and Laterals The design of lateral pipe involves selection of requiredpipe size for a given length which can carry the requiredquantity of water to the plant In designing the lateral, the discharge and operatingpressure at emitters are required to be known The allowable pressure drop in mainline and lateralsdepend upon the operating pressure required at emitters Pressure variation along the lateral line should notexceed 10% of the design lateral pressure
Energy/Head LossesEnergy losses occur in the pipeline due to friction and elevationchanges. The most commonly used equation in irrigation calculations isthe Hazen-Williams formula:h = f[{ K(Q/C) 1.852 }/ { D 4.87 }]* ( L + Le)Where:H f is the frictional head loss (m)K = 1.21 x 1010Q is the pipeline discharge (lps)C is the friction coefficient for pipe sectionsD is the inside diameter (mm)L is the pipeline length (m)Le is the equivalent length of pipe and accessories
Page 2 and 3: Drip Irrigation?Drip irrigation is
Page 4 and 5: Components of Drip Irrigation Syste
Page 6 and 7: Criteria for System Selection• Ec
Page 8 and 9: Command Area Information• A comma
Page 10 and 11: Selection of Type and Number of Emi
Page 14 and 15: Hazen-Williams Equation (C=150)∆
Page 16 and 17: Frictional Head Losses (m/100 m) fo
Page 20 and 21: Frictional Head Losses (m/100m) for
Page 24 and 25: Frictional Head Loss (m/100 m) for
Page 26 and 27: Head Losses in Valves and Accessori
Page 28 and 29: Design of Prime MoverPower requirem
Page 30 and 31: ExampleDesign a drip irrigation sys
Page 32 and 33: Example (cont)• Divide the area i
Page 34 and 35: Irrigation Scheduling• Crop : Cit
Page 37 and 38: Energy/Head LossesHead loss in pipe

Design of Drip Irrigation System

Create successful ePaper yourself

Delete template?

Save as template?