Dengwei Jing is Professor in the School of Energy and Power Engineering at Xi'an Jiaotong University, China. After his PhD from Xi'an Jiaotong University, he works there as a faculty. His research interests include energy conversion and multiphase flow. He has published more than 100 Journal articles. Liejin Guo is Professor in the School of Energy and Power Engineering at Xi'an Jiaotong University, China. He obtained his PhD from Xi'an Jiaotong University and stayed there to continue with his teaching and research career. His research interests are multiphase flow in power engineering and hydrogen energy systems. He has published more than 500 Journal articles and was elected as Academician of the Chinese Academy of Sciences in 2017. He received many awards including the National Natural Science Award and the National Technology Invention Award.