Chongqing University, Chongqing University, Chongqing University, Chongqing University, Chongqing University, Chongqing University, Chongqing University, The Chinese University of Hong Kong (CUHK), Chongqing University - MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems and Chongqing University - MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems