APPLICATION OF VARIABLE- SPEED PUMPS IN DESIGN AND OPERATION OF ON- DEMAND IRRIGATION SYSTEMS

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DELFAN AZARI MORTEZA; PARVARESH RIZI ATEFEH

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Paper Information

Journal: Iranian Journal of Soil and Water Research Year:2015 | Volume:46 | Issue:1 Page(s): 41-48

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Information Journal Paper

Title

APPLICATION OF VARIABLE- SPEED PUMPS IN DESIGN AND OPERATION OF ON- DEMAND IRRIGATION SYSTEMS

Author(s)

DELFAN AZARI MORTEZA | PARVARESH RIZI ATEFEH | Issue Writer Certificate

Keywords

IRRIGATION SYSTEMQ1

WATER LOSSQ1

DESIGN OF PUMPING STATIONQ2

PUMP PERFORMANCEQ2

Abstract

In most IRRIGATION SYSTEMs in our country, the pumping stations are equipped with fixed speed pumps. These pumps in addition to causing water waste, demand extra energy. Providing a method for adjusting the pumps to function according to obligations of operation can improve efficiency of water distribution as well as energy efficiency. One of the choices toward this aim, is to employ the variable speed pumps which adjust with the variable demand of system. In this study, by coding in MATLAB software, DESIGN OF PUMPING STATIONs equipped with variable- speed pumps was done for a drip IRRIGATION SYSTEM. Then with regard to variable demand of discharge and pressure during irrigation season, the designed system was evaluated and compared with some ordinary operation methods based on constant speed pumps. The results show that the performance of variable- speed pumps to supply the pressure head and discharge is largely definitely acceptable; while WATER LOSSes in ordinary pumping stations, depending on the type of station, amount to from 16 to 36 percent.

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