Nuclear and thermal hydraulic calculation of a representative I2S-LWR first core

نویسندگان

چکیده

The Integral Inherently Safe Light Water Reactor (I2S-LWR) concept developed by Georgia Tech is a novel PWR reactor delivering electric power of 1000 MWe while implementing inherent safety features typical for Generation III+ small modular reactors. main feature based on integral primary circuit configuration, bringing together compact design the core (121 fuel assembly), control rod drive mechanism (CRDM), 8 heat exchangers (PHE), 4 passive decay removal systems (DHRS), pumps, and other components. A high density silicide APMT (FeCrAl) stainless steel cladding selected to achieve thermal power. Initial representative first nuclear proposed Westinghouse. Full 3D depletion calculation was performed using PARCS code. cross section library prepared FA2D code verified Polaris sequence from SCALE 6.2 beta5. axial radial reflectors are assumed be homogeneous water-APMT mixtures. both 12 inch (30.48 cm) sections composed 30% volume. reflector 90% constants were calculated TRITON sequence. hydraulic part model COBRA subchannel coupled one hydraulics channel per assembly approach. hot determined separate pin-by-pin pin reconstruction data PARCS. objective paper demonstration LWR methodology applicability identification possible improvements in design.

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ژورنال

عنوان ژورنال: Energija

سال: 2022

ISSN: ['0354-8651', '2812-7528']

DOI: https://doi.org/10.37798/2016651-2139