Construção e avaliação de coletor de baixo custo em Palmas - TO

Abstract

Brazil faces currently a serious problem between availability and demand for energy, in part by improving the standard of living of some classes and the high consumption of the population. This unbridled consumption brings about a constant concern in energy production on a large scale. According to the National Electric Energy Agency (ANEEL, 2010), about 77% of the electricity generated in the country is provided by hydroelectric plants due to government policy and the great hydroelectric potential of Brazil. The electric shower is one of the items from the appliance which has increased participation in residential consumption, 25-35% of total spending according to EPE (2012). It is estimated that the shower consumes 6.2 to 8.7% of the energy produced in the country, also accounting for 18% of the electric system peak demand (Rodrigues e Matajs, 2004). The applicability of ecological solar heater as social technology in this contest, it becomes feasible for implementation in low-income households, as it enables energy saving and improving the quality of life simultaneously. Palmas-TO there are no studies that show the performance of this type of system. This study analyzed an inexpensive composed of solar collector made of PVC commercial hard pipe system, long life and PET bottles milk carton for a family of three people in Palmas-TO ambient conditions. The results showed that it is possible to obtain savings of up to 33.27% in replacing the electric shower by the heater. The solar heater reaches the temperature of 53 C, demonstrating its thermal efficiency in the use of alternative materials and easily accessible. With an initial investment of R$ 286.36 deployment and maintenance cost of R$ 5.00 / month, showed a savings of R$ 79.20 / month, confirming the economic viability of the deployment and use.