APLICATIVO PARA DIMENSIONAMENTO DO RESERVATÓRIO DE UM SISTEMA DE CAPTAÇÃO DE ÁGUAS PLUVIAIS.

Abstract

Rainwater harvesting systems for non-potable purposes are beginning to be more widely used and are a good alternative for water conservation, sustainability and flood reduction in cities, as well as reducing water bill expenditures. More and more the tendency is that in the new buildings that are built a system is installed, since specific programs and laws are appearing to stimulate the installation, and for the proper design of these systems, it is necessary to follow the parameters defined in NBR:15527/2007. The present work presents a study on rainwater harvesting systems and aims to present a computational tool that pre-sizing the system reservoir, since it is the most expensive component and therefore special care is needed in the time to calculate. The tool is a mobile application, with a simple interface that can be used by anyone, even if you are not aware of the calculation methods. It was also thought of for the city of Varginha, where the rainfall indexes are inserted in the application, in this way it facilitates even more application in the city and in nearby cities that use the same rainfall indexes. The application calculates the reservoir volume based on user input data, such as water consumption by inhabitants, the number of inhabitants of the location, and the roof area. This displays the minimum and maximum reservoir volume and provides the user's choice of any volume within this range. When you choose the volume that will be used, the application shows how much water the chosen reservoir can provide throughout the year, and how much water will be needed from another source to meet the total demand. There is also the option for those who have knowledge about the calculation methods, where the six methods provided by NBR:15527/2007 are available, and the user can choose freely which one to use.