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(1984) and predictions by a subchannel analysis code, MATRA.
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A subchannel analysis code with flow distribution model was used to carry out the thermal hydraulic analysis.
In the present work, a subchannel analysis was performed for lead-bismuth cooled fuel assemblies with ducts and thermal hydraulic characteristics were investigated with emphasis on turbulent mixing between subchannels and interassembly heat transfer.
Therefore, a subchannel analysis code SUBAC specially for SFR wire-wrapped assemblies is developed in the present study.
The subchannel grade and microscopic void distributions in the NUPEC Nuclear Power Engineering Corporation BFBT BWR Full-Sizeize facilityhavendle Tests) facility have been evaluated with a subchannel analysis code MATRA, a system code MARS and a CFD code CFX-10.
Peak cladding surface temperature difference arising from subchannel heterogeneities have been calculated by using the improved subchannel analysis code STARS and was evaluated to be about 18.5 °C.
Fuel assemblies of sodium cooled fast reactors are usually designed in wire wrapped configuration and subchannel analysis is an efficient approach for thermal hydraulic analysis of wire wrapped assemblies especially when two phase or transient analysis is required.
Statistical thermal design uncertainty associated with PCST calculation is evaluated by Monte-Carlo sampling technique combined with subchannel analysis code.
Based on the evaluated data, a correlation for a liquid sodium coolant is suggested, which will improve the accuracy of the subchannel analysis codes for the thermal-hydraulic design of an LMR.
A startup system and startup procedures are designed based on the subchannel analysis for CANDU-SCWR sliding pressure startup.
Since the conventional subchannel analysis codes are designed for the land-based reactor core, a thermal-hydraulic subchannel analysis code was developed to evaluate thermal-hydraulic characteristics of the reactor core under motion conditions.
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