2017 Volume 42 Issue 248 Pages 1-9
Aquifer thermal energy storage (ATES) air conditioning system can contribute to energy conservation by using the ground thermal energy and waste heat from buildings. The purpose of this study is to estimate its introduction effect and the influence of various conditions such as heat storage temperature in winter and operation methods in summer on energy conservation. In this study, we develop an ATES simulation model with a simulation tool using Modelica. We conduct simulation studies for 1case of an existing system and 3cases of ATES by changing the conditions of heat storage temperature and operation method. Through this simulation study, we show that setting the heat storage temperature at 13 degrees in winter improves the performance of the refrigerator compared to setting it at 6 degrees. In addition, we show that ATES, which sets the heat storage temperature at 13 degrees in winter and conducts heat source use in summer, is more effective for energy conservation, and that it can reduce power consumption by about 30.9% in a year compared with the existing system.
