HEAT TRASFER EXPERIMENTS USING A HIGH PRANDTL NUMBER FLUID FLOWING IN SPHERE-PACKED CHANNELS FOR FLIBE BLANKET DESIGN

Flibe blanket, which uses molten salt Flibe as coolant and tritium breeder, is considered as one of the candidates of advanced liquid blanket for fusion reactors. Although Flibe has low heat transfer performance which comes from high Pr, sufficient heat removal can be achievable by using sphere-pack...

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Published in:Fusion science and technology 2011-08, Vol.60 (2), p.528-532
Main Authors: Shimizu, Katsuya, Ebara, Shinji, Hashizume, Hidetoshi
Format: Article
Language:English
Subjects:
Blanketing
Channels
Design engineering
Fluid dynamics
Fluid flow
Fluids
Heat transfer
Pipe
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creator Shimizu, Katsuya
Ebara, Shinji
Hashizume, Hidetoshi
description Flibe blanket, which uses molten salt Flibe as coolant and tritium breeder, is considered as one of the candidates of advanced liquid blanket for fusion reactors. Although Flibe has low heat transfer performance which comes from high Pr, sufficient heat removal can be achievable by using sphere-packed pipe (SPP) as heat transfer promoter. In this study, heat transfer correlations of SPP which can be available for high Pr fluids are derived from experimental analysis inserting various size and materials of spheres into the pipe. Further, heat transfer performance in a rectangular channel is simulated by using sphere-packed annular channel. Based on these results, heat transfer performance of Flibe blanket is evaluated and some design window with pressure drop of less than 1 MPa/m was confirmed.
doi_str_mv 10.13182/FST11-A12436
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source Taylor and Francis:Jisc Collections:Taylor and Francis Read and Publish Agreement 2024-2025:Science and Technology Collection (Reading list)
subjects Blanketing
Channels
Design engineering
Fluid dynamics
Fluid flow
Fluids
Heat transfer
Pipe
title HEAT TRASFER EXPERIMENTS USING A HIGH PRANDTL NUMBER FLUID FLOWING IN SPHERE-PACKED CHANNELS FOR FLIBE BLANKET DESIGN
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