Heat-transfer characteristics during rapid quenching of a thin wire in water

Hiroshi Honda, Hiroshi Takamatsu, Hikaru Yamashiro, Shintaro Kobayashi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Rapid quenching of thin horizontal platinum wires (0.3 and 0.5 mm in diameter) was studied experimentally using pure water as the quenching liquid. The cooling curve was obtained in the ranges of water temperature of 0 to 50 °C, falling velocity of the wire of 0.1 to 1.5 m/s, and initial wire temperature of 600 to 1400 °C. Boiling curves for the rapid quenching process were obtained from the cooling curve. The degree of superheat at the minimum heat flux point was around 350 K irrespective of the water temperature, the falling velocity, and the wire diameter. The heat fluxes in the film, transition, and nucleate boiling regions increased with increasing degree of subcooling and falling velocity. A numerical analysis of transient film boiling on a horizontal cylinder with upward liquid flow was performed. The measured meat flux was about 30 percent higher than the calculated value at the forward stagnation point.

Original languageEnglish
Pages (from-to)773-791
Number of pages19
JournalHeat Transfer - Japanese Research
Volume21
Issue number8
Publication statusPublished - Dec 1 1992

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Rapid quenching
heat transfer
falling
wire
Wire
film boiling
Heat transfer
water temperature
Water
boiling
Boiling liquids
water
Heat flux
heat flux
curves
Cooling
cooling
nucleate boiling
Nucleate boiling
stagnation point

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

Cite this

Heat-transfer characteristics during rapid quenching of a thin wire in water. / Honda, Hiroshi; Takamatsu, Hiroshi; Yamashiro, Hikaru; Kobayashi, Shintaro.

In: Heat Transfer - Japanese Research, Vol. 21, No. 8, 01.12.1992, p. 773-791.

Research output: Contribution to journalArticle

Honda, Hiroshi ; Takamatsu, Hiroshi ; Yamashiro, Hikaru ; Kobayashi, Shintaro. / Heat-transfer characteristics during rapid quenching of a thin wire in water. In: Heat Transfer - Japanese Research. 1992 ; Vol. 21, No. 8. pp. 773-791.
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