Influences of nozzle-plate spacing on boiling heat transfer of confined planar dielectric liquid impinging jet

Chang Hwan Shin; Kyung Min Kim; Sung Hwan Lim; Hyung Hee Cho

doi:10.1016/j.ijheatmasstransfer.2009.08.002

Influences of nozzle-plate spacing on boiling heat transfer of confined planar dielectric liquid impinging jet

Chang Hwan Shin, Kyung Min Kim, Sung Hwan Lim, Hyung Hee Cho

Department of Mechanical Engineering

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

31 Citations (Scopus)

Abstract

We have investigated the single-phase and boiling heat transfer of dielectric liquid under the Reynolds numbers (2000, 3000 and 5000) and under nozzle-plate spacing (H/W; 0.5, 1.0 and 4.0) in a submerged impinging jet system. The boiling incipience increases in proportion to the Reynolds number and in inverse proportion to the nozzle-to-surface spacing. The critical heat flux at H/W = 1.0 is lower than those of outer spacings, such as H/W = 0.5 and 4.0, due to the characteristics of the jet impingement heat transfer distribution. We suggest a correlation equation of nozzle-plate spacing (H/W) having the lowest CHF for various jet velocities.

Original language	English
Pages (from-to)	5293-5301
Number of pages	9
Journal	International Journal of Heat and Mass Transfer
Volume	52
Issue number	23-24
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2009.08.002
Publication status	Published - 2009 Nov

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/j.ijheatmasstransfer.2009.08.002

Cite this

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title = "Influences of nozzle-plate spacing on boiling heat transfer of confined planar dielectric liquid impinging jet",

abstract = "We have investigated the single-phase and boiling heat transfer of dielectric liquid under the Reynolds numbers (2000, 3000 and 5000) and under nozzle-plate spacing (H/W; 0.5, 1.0 and 4.0) in a submerged impinging jet system. The boiling incipience increases in proportion to the Reynolds number and in inverse proportion to the nozzle-to-surface spacing. The critical heat flux at H/W = 1.0 is lower than those of outer spacings, such as H/W = 0.5 and 4.0, due to the characteristics of the jet impingement heat transfer distribution. We suggest a correlation equation of nozzle-plate spacing (H/W) having the lowest CHF for various jet velocities.",

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T1 - Influences of nozzle-plate spacing on boiling heat transfer of confined planar dielectric liquid impinging jet

AU - Shin, Chang Hwan

AU - Kim, Kyung Min

AU - Lim, Sung Hwan

AU - Cho, Hyung Hee

PY - 2009/11

Y1 - 2009/11

N2 - We have investigated the single-phase and boiling heat transfer of dielectric liquid under the Reynolds numbers (2000, 3000 and 5000) and under nozzle-plate spacing (H/W; 0.5, 1.0 and 4.0) in a submerged impinging jet system. The boiling incipience increases in proportion to the Reynolds number and in inverse proportion to the nozzle-to-surface spacing. The critical heat flux at H/W = 1.0 is lower than those of outer spacings, such as H/W = 0.5 and 4.0, due to the characteristics of the jet impingement heat transfer distribution. We suggest a correlation equation of nozzle-plate spacing (H/W) having the lowest CHF for various jet velocities.

AB - We have investigated the single-phase and boiling heat transfer of dielectric liquid under the Reynolds numbers (2000, 3000 and 5000) and under nozzle-plate spacing (H/W; 0.5, 1.0 and 4.0) in a submerged impinging jet system. The boiling incipience increases in proportion to the Reynolds number and in inverse proportion to the nozzle-to-surface spacing. The critical heat flux at H/W = 1.0 is lower than those of outer spacings, such as H/W = 0.5 and 4.0, due to the characteristics of the jet impingement heat transfer distribution. We suggest a correlation equation of nozzle-plate spacing (H/W) having the lowest CHF for various jet velocities.

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JO - International Journal of Heat and Mass Transfer

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IS - 23-24

ER -

Influences of nozzle-plate spacing on boiling heat transfer of confined planar dielectric liquid impinging jet

Abstract

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