Research on Ultra-high Temperature and High Power Density Small Gas-cooled Reactor Core Scheme
As one of the technical routes of small reactors,high-temperature gas-cooled reactors have the advantages of modular design,inherent safety and high thermal conversion efficiency,but their power density is small and the core size is large,which is not conducive to system deployment.Therefore,based on the prismatic dispersion fuel element with improved coated fuel particle,using control drum as reactivity control,a small gas-cooled reactor core scheme with ultra-high temperature and high power density is proposed.The volume of the core scheme is less than 0.8 m3,the volume power density can reach 39 MW/m3,and the outlet temperature is higher than 1 200 K.The neutron analysis and thermal analysis were carried out by RMC program and Fluent software,respectively,and the numerical results show that the scheme is reasonable and feasible,and has inherent safety,normal shutdown function,and the ability to further increase the operating power on the basis of 15MW thermal power.
nuclear energysmall reactorgas-cooled reactorsultra-high temperaturecoated fuel particlesprismatic fuel elements
NETL
NSTL
万方数据
