[1]Key Laboratory of Efficient Utilization of Low and Medium Grade Energy of Ministry of Education (Tianjin University), Tianjin 300072, China;
[2]Tianjin Geothermal Research and Training Center, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;
[3]Department of Thermal Engineering, School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, China;