... component and multi-component gas. Pellet-cladding gap heat transfer coefficient is a key parameter for safety analysis, which directly affects the thermal-mechanical performance of fuel rods under different conditions. Among them, pellet-cladding gap is the key parameter affecting pellet-cladding gap heat...

... Abstract Grid-to-rod fretting (GTRF) caused by flow induced vibration is one of the most important mechanisms of fuel rod failure in PWRs, which has a strong impact on the economy and safety of nuclear power plant. To avoid rod failure due to GTRF, several verification tests which are high...

... Abstract For the purpose of performing high-temperature irradiation of the fuel rod in the low-temperature and low-pressure water-cooled research reactor and obtaining the post-irradiation performance parameters of the fuel rod, a fuel rod irradiation test device was designed based on the High...

... Abstract Definition of a high-fidelity finite element model of a fuel rod is complex and error-prone. In order to make the models affordable for the purpose of design and analysis, this study developed an automated procedure for generation of the finite element models of fuel rods within...

... of the experimental study is to investigate and improve the understanding of complex turbulent convective enhancement mechanisms as well as the friction loss penalties of roughened fuel rod elements compared to smooth ones and to generate an accurate database for further development of physical models. Tests...