Evaluación hidráulica energética en sistemas de alcantarillado

Abstract

Disordered population growth can affect the behavior of sewerage systems causing overpressures, which prematurely determines the end of the system's life span. Therefore, the purpose of this work is to carry out a hydro-energy modeling of a gravity system. The methodology used is the rational method, in order to obtain energy gradient and hydraulic profile. We are working for a case study, located in the south central zone in Quito-Ecuador, the IDF intensity, duration and frequency curves taken were 7 stations and the runoff coefficient was for the Rational method in recurrent storms 0.4 to 0.75. The minimum operating diameter of 200 and 300 mm is considered. The energy assessment shows us that the system does not meet the “draft / height of the duct and> 2 was determined when the water level is greater than the height of the pipe. The simulation time was 120 minutes, at 25 years of return, the total area under study is 3.78 hectares, and a population served approximately 605 inhabitants, the total length of the evaluated network is 382 meters, which is composed of circular and rectangular sections throughout its length. The hydraulic energy evaluation delivers excess load data on the land level, that is, the amount of water that overflows through the review well, in the first six wells in the seventh, eighth and ninth well, there is no water overflow, which It was essential for the maintenance of the network and changes have been made to the sections of the pipe, that is, from 200 mm to 300 and 400 mm of PVC, for a maximum rain intensity between 35 and 40 minutes, with A hydraulic gradient is 0.01104 constant.