State Key Laboratory of Multiphase Flow in Power Engineering;
Xi'an Jiaotong University;
Xi'an 710049;
Shaanxi;
China;
Energy Research Insatute;
Qilu University of Technology(Shandong Academy of Sciences);
Jinan 250014;
Shandong;
China;
Supercritical water fluidized bed; Slugging fluidization; Dual-capacitance probe method;