... Abstract The high-temperature gas-cooled reactor (HTGR), is globally recognized as one of the reactor types embodying the safety features of the fourth generation, with the advantages of safety, high thermal efficiency in power generation, a small emergency planning zone, and the ability to use...

... into fuel pebble homogenization and support the feasibility of applying proper fuel pebble modeling to full-core HTR design and simulation. advanced reactor fuel design HTGR neutronics safety Proceedings of the 2024 31st International Conference on Nuclear Engineering ICONE31 August 4-8, 2024...

... Abstract Accurate determination of isotopic compositions of irradiated fuel elements plays a critical role in assessing fuel burnup, optimizing reactor performance, and ensuring safe operations. Spherical fuel elements are used in pebble-bed HTGRs (High Temperature Gas-cooled Reactors...

... Abstract The small absorber spheres system is one kind of shutdown system in the pebble-bed High Temperature Gas-cooled Reactor (HTGR or HTR). Vertical pneumatic conveying of small absorber spheres in pebble-bed HTGR is a special application of pneumatic conveying technique. The whole process...

... Abstract High temperature gas-cooled reactor (HTGR) is expected to use nuclear heat to wide range of industrial applications such as hydrogen production due to its high temperature heat supply capability and inherent safe characteristics. One of the key technologies is a safety evaluation...

...-temperature gas-cooled reactor (HTGR), it is necessary to assess the technical feasibility of various hydrogen production processes coupled with a HTGR. In this paper, several promising hydrogen production methods were compared from the perspectives of technological maturity, economic viability, and coupling...

... Abstract With the increasingly urgent demand for industrial heating, traditional heating methods are no longer suitable for the current energy development situation. The High Temperature Gas-cooled Reactor (HTGR), as a fourth-generation advanced nuclear energy technology, has several advantages...

... Abstract The modular high temperature gas-cooled reactor (HTGR) is an advanced technology of inherent safety, high electricity generation efficiency, and potential process heat applications in the chemical industry. The packed pebble bed in HTGR consists of a large number of randomly...

... Abstract Two-phase flow instability may occur in the once-through steam generator (OTSG) of High-Temperature Gas-cooled Reactors (HTGR). A time-domain theoretical model of HTGR OTSG was established to investigate this phenomenon. The heat transfer tube of OTSG was divided into three regions...

... Abstract High temperature gas cooled reactor (HTGR) is one of the promising advanced nuclear reactor for future electricity generation. The spherical fuel element with thousands of TRISO-coated particles dispersed in the graphite matrix are adopted by the HTGR, which is an important guarantee...

... statistics, pore distribution, porosity and specific surface area. The results show the reconstructed graphites are consistent with the original graphite, which proves the reliability of this method. HTGR nuclear grade graphite generative adversarial neural networks Proceedings of the 2024 31st...

... Abstract The ORIGEN2 code has been used for fuel depletion calculations of many kinds of reactor fuels but there is no library for high temperature gas cooled reactors (HTGRs). A set of the ORIGEN2 library for the HTGR has been established to evaluate the fuel burnup characteristics...

... Abstract Analysis and understanding the depressurization response of the HTGR reactor is essential to the understanding of accident scenarios and design of these reactors. The 350MWe GA-MHTR was used as reference reactor for the current design of the test facility. The design of the test...

... at high temperatures in HTGR. In order to reduce the corrosion of impurities on carbon materials, the HTGR core must be dehumidified before it operats. In this paper, the dehumidification of HTGR is taken as the research background. On the one hand, microscopic geometric parameters such as pore size...

... Abstract Cs-Bi and Cs-Sb absorbed graphite samples (Cs-Bi/graphite and Cs-Sb/graphite) were synthesized and their high temperature chemical stabilities were tested up to 1500 °C by TG and analyzed by TEM-EDS for the development of Cs trap material in high temperature gas-cooled reactor (HTGR...

... Abstract Manufacturability of the BP-mixed uranium dioxide (UO 2 ) kernel for burnable poison (BP) credit concept was estimated to ensure criticality safety in 14 wt% enrichment fuel fabrication facility for commercial high temperature gas-cooled reactor (HTGR). The case of the coating process...

... Abstract High-temperature gas-cooled reactor (HTGR) is characterized by inherent safety, superior proliferation resistance, and high efficiency, with a promising prospect on electric power product and high-temperature heat and hydrogen production. The enhanced safety mostly relies on the good...

..., Ralph Wiser1,2, Emilio Baglietto1, Koroush Shirvan1 1Massachusetts Institute of Technology, Cambridge, MA 2MIGHTR LLC, Boston, MA ABSTRACT 1. INTRODUCTION High temperature gas-cooled reactors (HTGRs) have been Gas-cooled reactors have a long history and are in use today. constructed around the world...

...Study on Heating Process of Dehumidifying Experiment in HTGR Kaiyue Shen, Wei Zheng, Shengchao Ma, Huaqiang Yin, Xuedong He,Tao Ma Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Key Laboratory of Advanced Reactor Engineering...

... Abstract The present study aims to propose a guidance that facilitates to determine fuel design limits of commercial HTGR on the basis of licensing experience through the high temperature engineering test reactor (HTTR) construction. The guidance consists of a set of figure of merits (FOMs...