Análise e revisão da literatura sobre os trocadores de calor geotérmico, suas aplicações e estudos de caso

Abstract

This research presents a theorical approach and case studies about an air conditioning technique that intend to cause less impact on the environment, called of Geothermal Heat Exchangers. Gathering existent information about the subject matter and organizing them so it can be used as reference for future researches and experiments. Also details the existing exchangers models and its use, in addition to specify the main parameters involved. By the end, case studies are presented to ascertain if they are in accordance with the presented literature review. Two case studies were chosen, located at a Spanish and Brazilian universities, using two different Geothermal Heat Exchangers models. The results presented by the Spanish exchanger were compared to a traditional air conditioning system and it had 73% of efficiency improvement, consumed 43% less electricity to heat up the building and 37% less to cool it down. The Brazilian experiment showed results with a different approach and concluded that the geothermal exchanger was able to drain 82,6% of the purposely introduced heat in its environment.