Sreedhar Koti, Umesh S Magarappanavar
Energy conservation,Total differetial head, Optimum pump sizing, Cost savings and Reduction in CO2 emission.
This paper presents a prominent energy conservation opportunity and solution in irrigation system. Pumps installed in agricultural fields are generally oversized and lead to uneconomic operations. Energy conservation in such cases is achieved through optimally selecting pumps. The proposed sizing method for pumps, considers irrigation water need, hydraulic head and pump operating hours. By considering the velocity of water flow as 1.5m/s for PVC pipes, optimum size of irrigation pump is attained. The proposed methodology is validated by a critical survey at agricultural field in the Malaprabha riverbed, Karnataka. The detailed walkthrough survey of 50 farmers is conducted and size of land, crops grown, pipe network, elevation and installed pump capacity are noted. Based on crop water requirements of individual farmers, optimum sizes of pumps are assessed. The results revealed that, in a span of 2.5 km of riverbed, approximately 60% of excessive installations were observed. Further, energy conserved, cost savings and reduction in CO2 emissions are obtained and analyzed. Thus, it is concluded that proposed method will provide a reliable solution for energy conservation in agricultural sector.
Article Details
Unique Paper ID: 143664

Publication Volume & Issue: Volume 2, Issue 12

Page(s): 425 - 430
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