Resumo:
City water distribution systems have a high operating and maintenance cost, which highlights
the growing importance of studies on water and energy efficiency. Water losses in distribution
systems, which are generally high in much of the world, are directly related to improving the
efficiency of these water structures. Therefore, the study of the costs of losses in water
distribution systems aims to identify the economic and environmental impact of losses in urban
areas. In this work, the objective is to evaluate and quantify the costs of water losses in
distribution companies, with the aim of identifying possible improvements to be implemented.
As methodological steps, it was initially defined to quantify the types of water losses in a
distribution system, and then, to quantify the costs related to water, energy and environmental
impacts through modeling and simulation tools, subsequently, construction was carried out of
a hypothetical sanitation system, representative of real systems. The analysis was conducted
through computational scenarios and simulation through a constructed computational routine
and subsequent simulation of the established scenarios with a view to temporal scenarios of
water losses. The results demonstrated the importance of studying and investing in reducing
losses and economic and environmental impact and quantifying and valuing different
component stages of a supply system. It is concluded that the impact of reducing water losses
can be quantified and valued, demonstrating the importance of composing partial costs,
illustrating the importance of combating losses in different stages of supply system processes.
