Abandoned coal mine tunnels: Future heating/power supply centers  

作　　者：Luo Pingjia Chen Ning 

机构地区：[1]School of Arts ＆ Design, China University of Mining ＆ Technology, Xuzhou 221116, China [2]School of Electric Power Engineering, China University of Mining ＆ Technology, Xuzhou 221116, China

出　　处：《Mining Science and Technology》2011年第5期637-640,共4页矿业科学技术（英文版）

基　　金：supported financially by the National Natural Science Foundation of China (No. 50908225)

摘　　要：We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat plan can provide over 15,000 m2 of building air-conditioning/heating load for each kilo- meter of roadway, but electric power is needed to run the system. Numerical research proved that the accumulation of hot water in the roadway for seasonal heating purposes （a temperature swing from 90 to 54 ℃） is a viable possibility. The CAES plan proposes using the discarded coal mine tunnel as a pea ing power station with an energy storage density over 7000 kj/m3. It can be concluded that presently abandoned coal mines could be reformed into future energy centers for a city.We have studied three plans for re-use of the abandoned mine roadway tunnels as an energy center. These are the thermostat plan, the thermal accumulator plan, and the CAES plan. Calculations show that the thermostat plan can provide over 15,000 m2 of building air-conditioning/heating load for each kilo- meter of roadway, but electric power is needed to run the system. Numerical research proved that the accumulation of hot water in the roadway for seasonal heating purposes (a temperature swing from 90 to 54 °C) is a viable possibility. The CAES plan proposes using the discarded coal mine tunnel as a peak- ing power station with an energy storage density over 7000 kJ/m3. It can be concluded that presently abandoned coal mines could be reformed into future energy centers for a city.

关 键 词：Mining reclamationEnergy storageHVAC CAES 

分 类 号：TM343.2[电气工程—电机] TD353.6[矿业工程—矿井建设]