Monte Carlo Analysis of the Battery-Type High Temperature Gas Cooled Reactor
Marcin Grodzki , Piotr Darnowski , Grzegorz Niewiński
AbstractThe paper presents a neutronic analysis of the battery-type 20 MWth high-temperature gas cooled reactor. The developed reactor model is based on the publicly available data being an ‘early design’ variant of the U-battery. The investigated core is a battery type small modular reactor, graphite moderated, uranium fueled, prismatic, helium cooled high-temperature gas cooled reactor with graphite reﬂector. The two core alternative designs were investigated. The ﬁrst has a central reﬂector and 30×4 prismatic fuel blocks and the second has no central reﬂector and 37×4 blocks. The SERPENT Monte Carlo reactor physics computer code, with ENDF and JEFF nuclear data libraries, was applied. Several nuclear design static criticality calculations were performed and compared with available reference results. The analysis covered the single assembly models and full core simulations for two geometry models: homogenous and heterogenous (explicit). A sensitivity analysis of the reﬂector graphite density was performed. An acceptable agreement between calculations and reference design was obtained. All calculations were performed for the fresh core state.
|Journal series||Archives of Thermodynamics, ISSN 1231-0956, e-ISSN 2083-6023, (B 13 pkt)|
|Publication size in sheets||0.9|
|Keywords in English||HTGR; HTR; Monte Carlo; Serpent; U-battery; SMR; Battery type|
|Score||= 13.0, 23-09-2019, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2016 = 0.598|
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