Review of thermalhydraulic experimental researches at INET

Over the last forty years, the Institute of Nuclear Energy Technology (INET ) of Tsinghua University has been one of the leading research institutes in the field of research and development on new types of reactors in China. A s the results of research and development programs on new types of reactors , three reactors which have different kinds of structure and design feature s have been constructed at INET; in addition, several large-scale thermalhy draulic test loops have been built in the thermalhydraulics laboratory of t he INET too. Relating to the research and development of liquid-metal fast neutron breeder reactor (LMFBR), molten salt reactor (MSR), nuclear heating reactor (NHR) and high temperature gas-cooled reactor (HTGR) many thermalh ydraulic experimental investigations have been carried out. A lot of design and/or operation experiences and the experimental research results on the above mentioned reactors have been obtained at the INET. After a brief intr oduction of the NHR and HTGR constructed at the INET, the main large-scale thermalhydraulic test loops and parts of the research interests and results from the loops are summarized and presented in the paper.