POTENTIAL USE OF ABANDONED UNDERGROUND COAL MINE AS-029 AS A RESERVOIR FOR GROUND SOURCE HEAT PUMPS, ATHENS, OH
This project characterized the potential of the AUM AS-029 located in Athens, Ohio, as a reservoir for GSHP technology in Ohio University or The Plains. Monitoring of the hydraulic and thermal response of groundwater wells around the mine was performed and a hydrogeological model was constructed using Visual MODFLOW to better determine the flow and velocity of water through the mine. Additionally, a thermal model of the mine was created considering the overburden thickness of the mine. Groundwater modeling and modeling of the heat absorbed by the mine shows that mine AS-029 can be used to receive heat, it cannot be used to give heat due to the low temperature of the groundwater in this area. For a change in temperature in the mine water of 10 °C, 0.23 MW of heat could be absorbed. The mine could theoretically provide 2.43% of Ohio University’s heating/cooling system with this increase in temperature. In conclusion, mine AS-029 may serve as a geothermal reservoir for a small number of buildings at Ohio University or for Athens High School in The Plains.