efficiency and energy consumption in sprinkler irrigation pumping plants in some fields in hamadan province

pressurized irrigation is a recent development that consumes more energy for the pressure produced. in thisstudy, energy consumption, waste and efficiency were investigated at a diesel and electrical sprinklerirrigation pumping plant in some fields in hamadan province during 2007-8. nebraska performance criteria(npc) were used to compare sprinkler irrigation pumping plant performance. the results showed that theaverage overall energy efficiency for 17 fields for the electrical pumping plants was 46.6% (70.6% npc)and 12.7% for the diesel pumping plants (52.9% npc). average fuel wastage for the diesel and electricalpumping plants was 3.9 l diesel per h and 12.1 kwh, respectively. the average electromotor and pumpefficiency were 92.4% and 42.2%, respectively, at the sprinkler irrigation pumping plant that did notconnect directly to a well. only the average electromotor efficiency was greater than the npc. factorsaffecting the overall energy efficiency reduction were improper pump or motor size, a worn-out pump ormotor, and incorrect installation of a pump or motor.