Comparação de custos de sistemas de aquecimento para edificações populares

Abstract

With the current crisis that settles in the country, concern about energy consumption and a way to save it is prompting more and more people. Given that currently one of the greatest "villains" of energy consumption is the electric shower, people need to seek alternatives to reduce your spending without this causing significant changes in our comfort. We analyzed the system costs to heat the bath water and any of these forms is feasible to replace the electrical system. To this question the replacement of he electrical system by gas passage heating system or solar heating system, noting which one is more viable. For this, it used based on the cost of deployment and aintenance and operating value of each. This research was based on the Brazilian family characteristics, more specifically in Paraná, the systems mentioned here were sized for a standard popular residence. The costs of the operation of each system were calculated using a perspective of historical evolution of the average annual growth rate in the last five years and thus on the implementation costs were calculated based on SINAPI and TCPO. view to increase the standard for the future, noting that the same may change due to the national economic environment. Given the survey of all the data needed for economic analysis determined the IRR (internal rate of return), the NPV (net present value) and the simple payback and discounted by comparing each system with the traditional system, in addition the analysis was extended until a mixed heating system considering that the solar system has the disadvantage of not achieving an efficient heating on rainy days. Made the analysis it was noted that the solar system has more commendable economic values despite its very high investment by deploying, maintaining the same factors after the implantation of a mixed system to meet their disability.