Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

In this study, economic analysis is carried out by applying the geothermal input/output temperature, power consumption and performance information based on the actual operating data of the geothermal heat pump system. The economic is analyzed and compared with the chiller-heater system and geothermal heat pump system which applied the existing economic analysis method. As a result, the initial investment cost of geothermal heat pump system was higher than that of the chiller-heater system but the operation cost was reduced. It is also confirmed that the payback period is shortened when the economic is analyzed according to the operating data as compared with the existing economic analysis method of the geothermal heat pump system. In this study, the economic analysis result changes according to application of operating data and application of operating data is necessary for accurate economic analysis.