1. Department of Energy and Power Engineering, Tsinghua University, Beijing 10084, PR China
2. Shanxi Research Institute for Clean Energy, Tsinghua University, Taiyuan 030000, PR China
3. Key Laboratory of Thermal Science and Power Engineering, Ministry of Education, Tsinghua University, Beijing 10084, PR China
4. Beijing Engineering Research Center for Ecological Restoration and Carbon Sequestration in Saline and Desertification Areas, Beijing 10084, PR China