Viabilidade econômica do uso de água de condensação proveniente de aparelhos condicionadores de ar como fonte alternativa de água em edificações residenciais

Abstract

Water is essential for life maintenance, in addition to be directly linked with human development. With increasing population growth, several problems, among them, those related to the pollution of water bodies and water supply, caused by a greater demand for this resource. There, at present days a greater emphasis on the rational use of water through the use of alternative water sources. In this study of case to analyze the feasibility regarding the reuse of water from standard household air conditioners. For the study were considered some scenarios, such as air humidity, time of use of the device in the period of one year, water tariff and the value of the market interest rate. The analysis of feasibility was done through the benefit and cost, using the Net Present Value. The reuse of water from air conditioners proved to be an alternative with greater viability for scenarios where humidity of air, time of use of the device and tariff are higher and, the interest rate, smaller.