Avaliação do potencial de utilização da energia geotérmica superficial de Dracena - SP com ênfase na climatização do ambiente construído

Abstract

In the past few years, climate changes caused by air pollutant emissions into the atmosphere, resulting from the use of fossil fuels, which are non- renewable resources, have been a global concern. In this regard, it is necessary to search for renewable energy sources to meet the demand for energy worldwide. The present work evaluates the potential of near-surface geothermal energy at Dracena-SP as an auxiliary power source for indoor climate control systems. A setup for the evaluation of geothermal energy potential was installed underground, in Dracena-SP. Temperature was measured underground, at 2.0m, 4.0m and 6.0m deep. The ambient temperature was also monitored. Studies prove that the earth thermal rate stays stable as the temperature range reduces with the increasing of the depth. Therefore, near-surface geothermal energy has a high potential in this regard, since the verified stability evidences that earth is a stable source for heat exchange, which can be used as a cold source for air conditioning and as a heat source for heating systems for buildings.