Hydraulic losses in engineering-economic analyses of hydroelectric stations: Fid-Bau Portal

Hydraulic losses in engineering-economic analyses of hydroelectric stations

Krivchenko, G. I. / Krasil'nikov, M. F.

Conclusions When comparing alternatives of hydroelectric stations which differ with respect to the magnitude of hydraulic losses, the introduction of supplementary outlays for thermal-electric stations, corresponding to the “lost power,” leads to an unjustified increase in the volume of work and in the cost of structures and equipment for hydroelectric stations.If the change in availability of the design head caused by hydraulic losses is small and does not give rise to a perceptible effect on the power indexes of the hydroelectric station, then the effect of hydraulic losses on the power generation of the station can be ignored.Where it is necessary to preserve the availability of the design head and hydroelectric-station output, this should be allowed for by a corresponding change in the value of the design head, introducing supplementary capital outlays only into turbine equipment and the structural part of the power-station building, which should be determined in accordance with actual indexes.Taking into account the great importance that a correct allowance for hydraulic losses has in engineering-economic substantiations of alternatives for hydroelectric stations, appropriate recommendations for standards should be developed.