Integrated simulation of water resources of reservoirs Engenheiro Ávidos and São Gonçalo in Paraíba, Brazil

Abstract

The objective of this research is to perform an integrated simulation in the Engenheiro Ávidos and São Gonçalo reservoirs, located in the Upper Piranhas Sub-basin in the State of Paraíba, using the Acquanet flow network model. Use of the SMAP rain-flow transformation model to complement the series of natural discharges in the period from 2010 to 2016. Thus, a simulation carried out considered a historical series from 1962 to 2016, with a future scenario Where values of the projected demands for the year 2032 were adopted. Analyzing an operational part of the reservoirs was observed, no simulated period, in which they are their maximum volume in many months; In most periods of the target volume was respected; The minimum volume is empty at times due to low rainfall levels, a fact that has intensified in recent years. Regarding the demands, the human supply and the water supply had reliability above 90%, for irrigation and industry, the number of failures was higher. In the future scenario, the results provide a different representation, in a few moments for the maximum volume, for many months operated in the minimum volume, not able to meet the operational requirement of the target volume, and consequently the attendance to the demands was also not satisfactory. As failures occurred in human and animal supplies in the two reservoirs, where reliability was above 70%, and as irrigation and industry requirements presented a large service deficit.