Double-stage flap valves are widely used in new pumping stations. The different opening angles of the double-stage have a great influence on outflow. To gain insight into this phenomenon, four commonly operating conditions with were selected to perform three-dimensional simulation calculations and physical model studies flow pattern water behind at rates. is analyzed by three indicators: stream...

The article presents the results of a study mode inflow and dynamics sedimentation on inlet part canal. field studies state channel situation in supply channels pumping stations are studied. process siltation head sump is analyzed. A method for regulating solid runoff into sections canal has been developed. And also by nature change hydraulic elements flow, time cleaning length investigated sec...

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 resul...

The article presents the developed methods and models for analyzing dynamic indicators of pumping units different time intervals their state during operation. main tasks assessing technical condition are to identify deviations from design solutions, presence damage, defects in pump structures that can cause accidents. results development a diagnostic system at stations presented. working condit...

Determination of the total energy in suction pipeline a four-component mixer fertilizers and water an experimental way, for possibility its use various schemes cropsirrigation has been performed. Materials methods: The research was carried out at operating pumping station LLC “Rassvet” Kuibyshevsky district Rostov region on specially made installation using calibrated control measuring devices ...