Divertorcooling with sub-channels-inserted metal porous media (Effects of the Sub-Channel volume and location on Heat Transfer Characteristics)

Kazuhisa Yuki, Hidetoshi Hashizume, Saburo Toda, Akio Sagara

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

This study evaluates heat transfer characteristics of a sub-channels-inserted (SCI) porous heat removal device for divertor cooling. It is clarified that increasing the total volume of the sub-channels strongly contributes to the enhancement of phase-change of coolant as well as the vapor discharge. A high heat flux of approximately 25 MW/m2 is removed at a wall superheat less than 70 K by increasing the number of the sub-channels installed under low flow rate conditions. The results also suggest that the SCI porous heat removal device could be applicable for the divertor cooling by optimizing the subchannel design. Furthermore, especially for an enlarged heating area, optimizing the location of the sub-channel inlet, that is the interval of each sub-channel inlet, could be essential in order to smoothly discharge the generated vapor outside the porous medium.

Original languageEnglish
Pages (from-to)325-330
Number of pages6
JournalFusion Science and Technology
Volume64
Issue number2
DOIs
Publication statusPublished - 2013 Aug

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Divertorcooling with sub-channels-inserted metal porous media (Effects of the Sub-Channel volume and location on Heat Transfer Characteristics)'. Together they form a unique fingerprint.

Cite this