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...
Main Authors: | , |
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Format: | Article |
Language: | Japanese |
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The Japan Society of Mechanical Engineers
2022-02-01
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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 |
first_indexed | 2024-04-12T09:00:22Z |
format | Article |
id | doaj.art-2764c3cda5bf4eecbfc8a75faae02f4f |
institution | Directory Open Access Journal |
issn | 2187-9761 |
language | Japanese |
last_indexed | 2024-04-12T09:00:22Z |
publishDate | 2022-02-01 |
publisher | The Japan Society of Mechanical Engineers |
record_format | Article |
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 |