A Critical Approach for Energy Conservation in Irrigation Systems by Optimal Sizing of Pumps
Basanagouda F Ronad1, Suresh H Janagmshetti2

1Basanagouda F Ronad, Department of Electrical and Electronics Engineering, Bagalkot, Karnataka, India.

2Suresh H Janagmshetti, Department of Electrical and Electronics Engineering, Bagalkot, Karnataka, India.

Manuscript received on 05 April 2019 | Revised Manuscript received on 14 April 2019 | Manuscript Published on 24 May 2019 | PP: 155-159 | Volume-8 Issue-6S3 April 2019 | Retrieval Number: F10280486S319/19©BEIESP

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Abstract: This paper presents achievement of energy conservation in irrigation systems by optimally sizing the pump and PVC pipe network. The proposed sizing technique employs irrigation water need, hydraulic head and pump operating hours with an optimal water flow at 1.5m/s. Based on crop water requirement and available operating hours, diameter of pipe and flow rate are assessed. The physical conditions of the agri-land are used utterly to determine hydraulic head. Pump capacity to discharge necessary water over the defined head at best efficiency is obtained from the hydraulic power equation of the pump. The presented method is employed to identify energy conservation potential at Malaprabha river bed, Karnataka, India. A critical survey of agri-lands is taken up and optimal sizes are suggested. It is found that, in a span of 1.5 km riverbed, approximately 40% of installations are in excess. Further, energy conserved, cost savings and possible reduction in CO2 emissions are determined. It is concluded that proposed method at larger scale, will achieve energy conservation in irrigation loads and drastically reduce burden on power grid without affecting the water supply reliability.

Keywords: Energy Conservation, Irrigation Systems, Suction and Discharge Head Losses, Centrifugal Pumps, Crop Water.
Scope of the Article: Renewable Energy Technology