EFICIENCIA HIDRÁULICA DE CAPTACIÓN DE LAS TOMAS COANDA EN LOS RÍOS RONQUITO, RONCO Y ANTARA
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Abstract
El propósito del presente estudio es conocer la eficiencia hidráulica de las obras de captación tipo Coanda en tres ríos de montaña del subandino de Bolivia, dichas obras forman parte de la Central Hidroeléctrica San José 1 y están ubicadas en el departamento de Cochabamba, provincia Chapare del Municipio de Villa Tunari. Para este estudio se comparó los caudales captados aforados frente a los caudales captados simulados por el programa Numerical Model of Coanda Screen Performance. Se llevaron campañas de aforo en los tres ríos durante el periodo marzo del 2018 a febrero del 2022. El número de las campañas y su frecuencia fue limitado por el advenimiento de la Pandemia COVID 19. Para la medición de los caudales se empleó el método de vadeo y utilizando correntómetros, los cuales se aforaron en diferentes puntos de cada obra de captación. Los resultados de la presente investigación permiten conocer valores del performance global para la pantalla Coanda en el río Ronquito del 80%, para Ronco del 74% y Antara del 80%. En atención a ello, las pantallas Coanda se constituyen en una buena alternativa de obras de captación de caudales en ríos de montaña, más aún si ellas reducen la necesidad a la inclusión de obras adicionales como desarenadores.
The purpose of this study is to know the hydraulic efficiency of the Coanda type intake works in three mountain rivers of the sub-Andean region of Bolivia, these works are part of the San José 1 Hydroelectric Power Plant and are located in the department of Cochabamba, Chapare province of the Municipality of Villa Tunari. For this study, the gauged captured flows were compared with the captured flows simulated by the Numerical Model of Coanda Screen Performance program. Gauging campaigns were carried out in the three rivers during the period March 2018 to February 2022. The number of campaigns and their frequency was limited by the advent of Pandemic COVID 19. For the measurement of flow rates, the wading method was used and using current meters, which were gauged at different points of each catchment. The results of the present investigation show global performance values of 80% for the Coanda screen in the Ronquito river, 74% for Ronco and 80% for Antara. In view of this, the Coanda screens are a good alternative for catchment works in mountain rivers, especially if they reduce the need to include additional works such as sand traps.
The purpose of this study is to know the hydraulic efficiency of the Coanda type intake works in three mountain rivers of the sub-Andean region of Bolivia, these works are part of the San José 1 Hydroelectric Power Plant and are located in the department of Cochabamba, Chapare province of the Municipality of Villa Tunari. For this study, the gauged captured flows were compared with the captured flows simulated by the Numerical Model of Coanda Screen Performance program. Gauging campaigns were carried out in the three rivers during the period March 2018 to February 2022. The number of campaigns and their frequency was limited by the advent of Pandemic COVID 19. For the measurement of flow rates, the wading method was used and using current meters, which were gauged at different points of each catchment. The results of the present investigation show global performance values of 80% for the Coanda screen in the Ronquito river, 74% for Ronco and 80% for Antara. In view of this, the Coanda screens are a good alternative for catchment works in mountain rivers, especially if they reduce the need to include additional works such as sand traps.
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Vol. 24, No. 2