Serbova J. Intensification of the work of the hydraulic equipment of the water supply systems on the basis of physical and mathematical design.

The new mathematical model of calculation and construction of the calculation and construction of the hydraulic system's pressure characteristics enables to estimate and analyses the parameters of the hydraulic system's work on the different plots. The new model of the system presentation of the hydraulic system's parameters of work promotes the application of the equipment with minimum resistances. The algorithm of calculation of the stream device's pressure characteristics allowing to calculate the characteristics of combined work of stream device and centrifugal pumps is improved. The construction with the module K > 30 can be effectively used for the removal of cavitations in the pumps. The reconstruction carried out on the pumping station of the Lower - Dniester irrigation system increased the water supply of system by 7% and decreased the specific expenses of electric power by 5%. The cost saving of electric power made 24 thousands of hryvnyas for a year.