Using the DESIGN 03-Pump Sizing Tool: Sheet Pumping Head Calculation: Pumping head table Basic assumptions (Hint: compare how pipe diameter and sun hours affect total head) Quantify number of fittings from pump to tank, or from pump to irrigation system if no tank is used (direct feed) (Note: for a tank system, the fittings after the tank need not be specified) Water Head Head Pressure Pipe Daily Pipeline source Static Height Loss Loss in Irrigation water length Water to Tank in System (inch) (m3) Level Water Meter 1 Well 30 m 2 m 5 m None 0.2 bar No, drip 2 310 20 m = 2 m 2 Borehole 40 m 0 m 20 m None None None 1 ½ 5 100 (1.5) on hill) Water 32º 22.5º 11.25º Gate 90º Gate Check Tee Reducer source Elbow Elbow Elbow Elbow valve 1 Well to 3 tank 2 Borehole 3 to tank Water source Volume flow Total head Notes 1 Well to tank The total head is sensitive to the pipe diameter (and volume water pumped). Current pipeline is 2 inch. 44.29 m3 per 52.3 m Increasing to 3 inch would reduce total head to 41.4 hour m. The amount of sunshine hours also determines the total head. 2 Borehole to 0.71 m3 per 60.1 m tank hour
Using the DESIGN 03-Pump Sizing Tool: Sheet Pumping Head Calculation: Pumping head table Basic assumptions (Hint: compare how pipe diameter and sun hours affect total head) Quantify number of fittings from pump to tank, or from pump to irrigation system if no tank is used (direct feed) (Note: for a tank system, the fittings after the tank need not be specified) Water source Static Water Level Height to Tank Head Loss in Water Meter Head Loss in Pressure Irrigation System Pipe (inch) Daily water (m3) Pipeline length 1 Well 30 m 2 m 5 m None 0.2 bar = 2 m No, drip 2 310 20 m 2 Borehole 40 m 0 m 20 m on hill) None None None 1 ½ (1.5) 5 100 Water source 32º Elbow 22.5º Elbow 11.25º Elbow Gate 90º Elbow Tee Reducer Gate Check valve 1 Well to tank 3 2 Borehole to tank 3 Water source Volume flow Total head Notes 1 Well to tank 44.29 m3 per hour 52.3 m The total head is sensitive to the pipe diameter (and volume water pumped). Current pipeline is 2 inch. Increasing to 3 inch would reduce total head to 41.4 m. The amount of sunshine hours also determines the total head. 2 Borehole to tank 0.71 m3 per hour 60.1 m
DESIGN_04_-_Case_Study_Mr_Paolo.docx