%0 Journal Article %T Study of Heat Transfer Characteristics and Economic Analysis of a Closed Deep Coaxial Geothermal Heat Exchanger Retrofitted from an Abandoned Oil Well %A Liu, Rui-Jia %A Jia, Lin-Rui %A Zhang, Wen-Shuo %A Yu, Ming-Zhi %A Zhao, Xu-Dong %A Cui, Ping %J Sustainability %V 16 %N 4 %@ 2071-1050 %D 2024-02-14 %I Multidisciplinary Digital Publishing Institute %~ DeepDyve