Evaluation of heat transfer characteristics of a sphere-packed pipe for Flibe blanket

Atsushi Watanabe; Shinji Ebara; Akio Sagara; Hidetoshi Hashizume

doi:10.1016/j.fusengdes.2013.01.051

Evaluation of heat transfer characteristics of a sphere-packed pipe for Flibe blanket

Atsushi Watanabe, Shinji Ebara, Akio Sagara, Hidetoshi Hashizume

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A Flibe blanket has been proposed to be used in FFHR. Since Flibe has poor heat transfer performance, heat transfer promoter is required, and a sphere-packed pipe (SPP) has been proposed to enhance the heat transfer performance in the Flibe blanket. In this paper, the fluid flow and heat transfer characteristics in the SPP is evaluated numerically using a k-É turbulent model for the flow field and an algebraic model for the thermal field. As a result, it was shown that bypass flows in the SPP play a significant role in heat transfer. Also it is thought that the turbulent energy can strongly affect heat transfer performance.

Original language	English
Pages (from-to)	2357-2360
Number of pages	4
Journal	Fusion Engineering and Design
Volume	88
Issue number	9-10
DOIs	https://doi.org/10.1016/j.fusengdes.2013.01.051
Publication status	Published - 2013 Oct 1

Keywords

Flibe
Heat transfer
Numerical simulation
Sphere-packed pipe
k-É turbulent model

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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title = "Evaluation of heat transfer characteristics of a sphere-packed pipe for Flibe blanket",

abstract = "A Flibe blanket has been proposed to be used in FFHR. Since Flibe has poor heat transfer performance, heat transfer promoter is required, and a sphere-packed pipe (SPP) has been proposed to enhance the heat transfer performance in the Flibe blanket. In this paper, the fluid flow and heat transfer characteristics in the SPP is evaluated numerically using a k-{\'E} turbulent model for the flow field and an algebraic model for the thermal field. As a result, it was shown that bypass flows in the SPP play a significant role in heat transfer. Also it is thought that the turbulent energy can strongly affect heat transfer performance.",

keywords = "Flibe, Heat transfer, Numerical simulation, Sphere-packed pipe, k-{\'E} turbulent model",

author = "Atsushi Watanabe and Shinji Ebara and Akio Sagara and Hidetoshi Hashizume",

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T1 - Evaluation of heat transfer characteristics of a sphere-packed pipe for Flibe blanket

AU - Watanabe, Atsushi

AU - Ebara, Shinji

AU - Sagara, Akio

AU - Hashizume, Hidetoshi

PY - 2013/10/1

Y1 - 2013/10/1

N2 - A Flibe blanket has been proposed to be used in FFHR. Since Flibe has poor heat transfer performance, heat transfer promoter is required, and a sphere-packed pipe (SPP) has been proposed to enhance the heat transfer performance in the Flibe blanket. In this paper, the fluid flow and heat transfer characteristics in the SPP is evaluated numerically using a k-É turbulent model for the flow field and an algebraic model for the thermal field. As a result, it was shown that bypass flows in the SPP play a significant role in heat transfer. Also it is thought that the turbulent energy can strongly affect heat transfer performance.

AB - A Flibe blanket has been proposed to be used in FFHR. Since Flibe has poor heat transfer performance, heat transfer promoter is required, and a sphere-packed pipe (SPP) has been proposed to enhance the heat transfer performance in the Flibe blanket. In this paper, the fluid flow and heat transfer characteristics in the SPP is evaluated numerically using a k-É turbulent model for the flow field and an algebraic model for the thermal field. As a result, it was shown that bypass flows in the SPP play a significant role in heat transfer. Also it is thought that the turbulent energy can strongly affect heat transfer performance.

KW - Flibe

KW - Heat transfer

KW - Numerical simulation

KW - Sphere-packed pipe

KW - k-É turbulent model

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