Viabilidade do uso da energia geotérmica para condicionamento térmico de habitações sociais

Abstract

The air conditioner is currently one of the largest consumers of electric power in residences. A passive alternative to overcome this problem is the use of surface geothermal energy to reduce energy consumption. In social housing of the Minha Casa Minha Vida Program, the lack of thermal comfort is, unfortunately, a common problem. Due to the lack of resources of the residents, the presentation of more sustainable and economical alternatives to the conventional air conditioner equipment becomes necessary. This research aims to verify the economic viability of geothermal heat pump systems for thermal conditioning of social housing, using as a reference a prototype implemented by De Nardin (2018) in a building in Santa Maria-RS. For this, a bibliographic review was carried out, with a later presentation of the prototype installed and elaboration of the feasibility analysis. A budgetary framework was developed for the investment and operating costs, and with the application of financial mathematical methods was obtained the payback of the investment and the profit generated up to the end of the useful life of the system in different possible scenarios to prove the effectiveness of the prototype. It was concluded that the use of surface geothermal energy is a viable alternative economically, environmentally and socially to remedy the thermal discomfort in social housing, due to its low implementation cost, its high energy efficiency and the monetary economy generated in comparison to a common air conditioner.