Aquecimento solar de água: viabilidade econômica de um sistema residencial.

Abstract

In the current world scenario of the energy resources most used as sources of energy, are: fossil fuels (coal, oil, natural gas), power generated in hydroelectric and nuclear power plants. The increasing increase in polluting energy sources, global warming and environmental impacts increase concern about alternatives that generate energy more cleanly, and renewable energies stand out. The sun is a source of renewable energy and harnessing this energy as a source of heat and source of energy is one of the most promising energy alternatives to meet the challenges of the new millennium. In this sense, the present work aims at the minimum expenses in the installation of the solar energy system (SAS) with economy of use of the electric shower, highlighting the period in which the consumer has the return of his investment. A study was developed in a real system, which works in a residence in João Pessoa, where five people live. The project was based on the average energy expenditure that residence consumes with the use of the electric shower, which is now generated by the system. With access as light accounts, know an average of the fees charged for the concession of Kwth consumed and the total cost of the system, including material and installation, applying some methods to verify the feasibility of the system. With an analysis of the project or what gives it for the 3.67 years, which proves the viability of the system, in view of the manufacturer, the system works perfectly over a period of 25 years.