Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces

An pool boiling heat transfer experimental investigation was studied on the surfaces with micro-pillars using FC-72 as working fluid. The pool boiling experiment was conducted under the saturated and subcooled conditions (ΔTsub = 25 K). It can be found that the critical heat flux (CHF) of surfaces w...

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Autores principales:	Yonghai Zhang, Xiang Ma, Zhiqiang Zhu, Lian Duan, Jinjia Wei
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Critical heat flux Prediction model Pool boiling Micro-pillar surfaces Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/31af14afe4f449c2ae45278aecdf0351
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id	oai:doaj.org-article:31af14afe4f449c2ae45278aecdf0351
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spelling	oai:doaj.org-article:31af14afe4f449c2ae45278aecdf03512021-11-24T04:30:44ZCritical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces2214-157X10.1016/j.csite.2021.101668https://doaj.org/article/31af14afe4f449c2ae45278aecdf03512021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214157X21008315https://doaj.org/toc/2214-157XAn pool boiling heat transfer experimental investigation was studied on the surfaces with micro-pillars using FC-72 as working fluid. The pool boiling experiment was conducted under the saturated and subcooled conditions (ΔTsub = 25 K). It can be found that the critical heat flux (CHF) of surfaces wtih micro-pillars is higher than that of smooth chip, and the surface area enhancement ratio and the arrangement of the micro-pillars have significant effects on the CHF. The replenished liquid velocity ul is proposed to evaluate the wicking effect. A new prediction model is established to predict the CHF of surfaces with micro-pillars considering the effect of replenished liquid velocity ul, vapor column radius rv and vapor column spacing λb. The results show that the new CHF prediction model can effectively reflect the impact of the micro-pillars on CHF, and the experimental data can be predicted with an error band of ± 10%, indicating a good predicted ability.Yonghai ZhangXiang MaZhiqiang ZhuLian DuanJinjia WeiElsevierarticleCritical heat fluxPrediction modelPool boilingMicro-pillar surfacesEngineering (General). Civil engineering (General)TA1-2040ENCase Studies in Thermal Engineering, Vol 28, Iss , Pp 101668- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Critical heat flux Prediction model Pool boiling Micro-pillar surfaces Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Critical heat flux Prediction model Pool boiling Micro-pillar surfaces Engineering (General). Civil engineering (General) TA1-2040 Yonghai Zhang Xiang Ma Zhiqiang Zhu Lian Duan Jinjia Wei Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
description	An pool boiling heat transfer experimental investigation was studied on the surfaces with micro-pillars using FC-72 as working fluid. The pool boiling experiment was conducted under the saturated and subcooled conditions (ΔTsub = 25 K). It can be found that the critical heat flux (CHF) of surfaces wtih micro-pillars is higher than that of smooth chip, and the surface area enhancement ratio and the arrangement of the micro-pillars have significant effects on the CHF. The replenished liquid velocity ul is proposed to evaluate the wicking effect. A new prediction model is established to predict the CHF of surfaces with micro-pillars considering the effect of replenished liquid velocity ul, vapor column radius rv and vapor column spacing λb. The results show that the new CHF prediction model can effectively reflect the impact of the micro-pillars on CHF, and the experimental data can be predicted with an error band of ± 10%, indicating a good predicted ability.
format	article
author	Yonghai Zhang Xiang Ma Zhiqiang Zhu Lian Duan Jinjia Wei
author_facet	Yonghai Zhang Xiang Ma Zhiqiang Zhu Lian Duan Jinjia Wei
author_sort	Yonghai Zhang
title	Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
title_short	Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
title_full	Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
title_fullStr	Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
title_full_unstemmed	Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
title_sort	critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/31af14afe4f449c2ae45278aecdf0351
work_keys_str_mv	AT yonghaizhang criticalheatfluxpredictionmodelofpoolboilingheattransferonthemicropillarsurfaces AT xiangma criticalheatfluxpredictionmodelofpoolboilingheattransferonthemicropillarsurfaces AT zhiqiangzhu criticalheatfluxpredictionmodelofpoolboilingheattransferonthemicropillarsurfaces AT lianduan criticalheatfluxpredictionmodelofpoolboilingheattransferonthemicropillarsurfaces AT jinjiawei criticalheatfluxpredictionmodelofpoolboilingheattransferonthemicropillarsurfaces
_version_	1718415967316344832

Critical heat flux prediction model of pool boiling heat transfer on the micro-pillar surfaces

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