Análisis de transitorios hidráulicos incorporando elementos disipadores de energía para disminuir la sobrepresión en la tubería a presión de la Central Hidroeléctrica Pusuno I

Abstract

The Elit Energy Company is in charge of the administration and operation of the Pusuno I hydroelectric plant, which has managed complications complications in the pressure hydraulic system, especially in the pressure pipeline that is responsible for supplying a flow of 12 m3 / s at two generation units (Francis turbines) respectively. The complications that have been evidenced in the pressure pipe of PRFV o GRP, has been the failure in its connections where it has been proposed to give a brief solution through a reinforcement with concrete in each failed joint. It is presumed that the origin of this problem is due to some complication that was obtained during the transportation and installation process because the pipe is susceptible to impacts. There fore, this degree project aims to provide a solution through the selection of a pressure dissipating alternative (annular relief valve, water hammer anticipatory valve, 1 hydro-pneumatic tank and 2 hydro pneumatic tanks) that allows reducing overpressure generated in the hydraulic system during the presence of hydraulic transient phenomena in order to safeguard the physical integrity of the pipeline and maintain its useful life. For this analysis of the hydraulic transients, the Bentley Hammer V8i software package was used, allowing to propose a solution to the problems that are arising in the pipeline of the Pusuno hydroelectric power plant during normal and extraordinary operating scenarios. The result obtained from this analysis can be considered by Elit Energy as a solution proposal.