Description
High-Temperature Gas-Cooled Reactors (HTGRs) represent a promising technology for decarbonizing both electricity and industrial heat sectors due to their high-temperature output, efficiency, and inherent safety features. This paper presents the final design of the HTGR-POLA, a 30 MWth prismatic block-type reactor concept developed at the National Centre for Nuclear Research (NCBJ) in Poland [1,2]. The primary goal of this work was to establish an optimized core configuration that ensures a long operational cycle, efficient fuel utilization, and robust safety margins under a wide range of operational and accidental conditions. The final design was achieved through a comprehensive, multi-parameter analysis involving iterative adjustments to fuel enrichment, TRISO particle packing fractions, and the strategic placement of burnable poisons. The reactor is designed to operate with helium as a coolant at 4 MPa, with inlet and outlet temperatures of 325°C and 750°C, respectively.
| Technical Track | Research Reactors |
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