Análisis energético y económico de distintas configuraciones de enfriamiento con bombas de calor geotérmicas para diferentes zonas climáticas del Ecuador.

Abstract

In Ecuador, the city of Guayaquil has a hot weather along the year. For that reason, the air conditioning requirements are present every month, especially in those buildings with a huge amount of people. These project has the objective to model and simulate on TRNSYS an air conditioning system using a ground source heat pump, under the Guayaquil’s weather conditions and of their soil, in order to satisfy the building demand and evaluate the system in other cities. To achieve the goal, a geothermal system was compared to an air source heat pump system to notice their difference by conditioning the last floor of Gobierno Zonal’s building. Also, the geothermal system was analyzed considering 25 y 30 number of bores, even as 5 and 6 m of separation between them. The estimation of the air conditioning demand was obtained from bibliography being these 153 kW. The results showed that the geothermal system was able to satisfy in a huge proportion the air conditioning demand in Guayaquil, compared to the air source heat pump system. Further, the cities with hot weather in Ecuador have the characteristics to cover the design requirements for the study case, demonstrating the feasibility to use these kind of systems. In addition, an economic analysis of installation and maintenance costs were developed including 25 years of margin.