THEORETICAL AND EXPERIMENTAL ANALYSIS OF DYNAMIC PROCESSES OF PIPE BRANCH FOR SUPPLY WATER TO THE PELTON TURBINE

摘要

The paper presents the results of the analysis of the pipe branch A6 to feed the Hydropower Plant "Perucica " with integrated action Pelton turbines. The analysis was conducted experimentally (tensometric) and numerically. The basis of the experimental research is the numerical finite element analysis of the pipe branch A6 in pipeline C3. Pipe branch research was conducted in order to set the experiment and to determine extreme stress states. The analysis was used to perform the determination of the stress state of a geometrically complex assembly. This was done in detail as it had never been done before, even in the design phase. The actual states of the body pipe branch were established, along with the possible occurrence of water hammer accompanied by the appearance of hydraulic oscillation. This provides better energetic efficiency of the turbine devices.