Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)

An evaporation of droplet reaches a minimum time at a temperature of hot surface beyond the saturation temperature. Most of researches have mainly focused on the temperature at the minimum time, only. This paper proposed an exact solution to calculate heat flux after a time when the droplet starts c...

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Main Authors: Masanori MONDE, Yuhichi MITSUTAKE
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2022-02-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/88/907/88_21-00365/_pdf/-char/en
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author Masanori MONDE
Yuhichi MITSUTAKE
author_facet Masanori MONDE
Yuhichi MITSUTAKE
author_sort Masanori MONDE
collection DOAJ
description An evaporation of droplet reaches a minimum time at a temperature of hot surface beyond the saturation temperature. Most of researches have mainly focused on the temperature at the minimum time, only. This paper proposed an exact solution to calculate heat flux after a time when the droplet starts contact with the hot surface. The calculated heat flux until a time of about 1 ms when the droplet starts evaporating on the contact surface is found to be very close to the critical heat flux for subcooled pool boiling at the droplet temperature. The average heat flux at the minimum time is firstly determined for the hot surface from which the corresponding initial surface temperature is dependently determined. The quench temperature, furthermore, in a mist cooling for a high temperature material is found to be estimated well by applying the proposed method
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publishDate 2022-02-01
publisher The Japan Society of Mechanical Engineers
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series Nihon Kikai Gakkai ronbunshu
spelling doaj.art-2764c3cda5bf4eecbfc8a75faae02f4f2022-12-22T03:39:16ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612022-02-018890721-0036521-0036510.1299/transjsme.21-00365transjsmeRelationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)Masanori MONDE0Yuhichi MITSUTAKE1Saga UniversitySaga UniversityAn evaporation of droplet reaches a minimum time at a temperature of hot surface beyond the saturation temperature. Most of researches have mainly focused on the temperature at the minimum time, only. This paper proposed an exact solution to calculate heat flux after a time when the droplet starts contact with the hot surface. The calculated heat flux until a time of about 1 ms when the droplet starts evaporating on the contact surface is found to be very close to the critical heat flux for subcooled pool boiling at the droplet temperature. The average heat flux at the minimum time is firstly determined for the hot surface from which the corresponding initial surface temperature is dependently determined. The quench temperature, furthermore, in a mist cooling for a high temperature material is found to be estimated well by applying the proposed methodhttps://www.jstage.jst.go.jp/article/transjsme/88/907/88_21-00365/_pdf/-char/endroplet evaporationboilingminimum vapor evaporation timecritical heat fluxtwo-dimensional solutionquenching temperature
spellingShingle Masanori MONDE
Yuhichi MITSUTAKE
Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
Nihon Kikai Gakkai ronbunshu
droplet evaporation
boiling
minimum vapor evaporation time
critical heat flux
two-dimensional solution
quenching temperature
title Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
title_full Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
title_fullStr Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
title_full_unstemmed Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
title_short Relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling (Extension to Quenching temperature of high temperature surface with droplets)
title_sort relationship between heat flux at minimum evaporation time of droplet and critical heat flux for pool boiling extension to quenching temperature of high temperature surface with droplets
topic droplet evaporation
boiling
minimum vapor evaporation time
critical heat flux
two-dimensional solution
quenching temperature
url https://www.jstage.jst.go.jp/article/transjsme/88/907/88_21-00365/_pdf/-char/en
work_keys_str_mv AT masanorimonde relationshipbetweenheatfluxatminimumevaporationtimeofdropletandcriticalheatfluxforpoolboilingextensiontoquenchingtemperatureofhightemperaturesurfacewithdroplets
AT yuhichimitsutake relationshipbetweenheatfluxatminimumevaporationtimeofdropletandcriticalheatfluxforpoolboilingextensiontoquenchingtemperatureofhightemperaturesurfacewithdroplets