{"title":"Heat Transfer during Boiling in Horizontal Layers of HFE-7100 on Smooth and Modified Surfaces","authors":"D. A. Shvetsov, A. N. Pavlenko, V. I. Zhukov","doi":"10.1134/S1810232824020024","DOIUrl":null,"url":null,"abstract":"<p>Experimental data were obtained on heat transfer in horizontal layers of dielectric liquid HFE-7100 of various heights at atmospheric pressure. The heat transfer during boiling was studied on a smooth stainless steel surface and on a capillary-porous stainless steel coating manufactured by the SLM/SLS 3D printing technology. Comparison of the values of temperature pressure and critical heat flux on the smooth surface and on the capillary-porous coating has shown that in HFE-7100 layers with height below 6 mm, the heat transfer regime changes from pool boiling to boiling in thin layers of liquid. At a heat flux density of 100 kW/m<sup>2</sup>, the temperature difference obtained on the capillary-porous coating was six times lower than that on the smooth surface.</p>","PeriodicalId":627,"journal":{"name":"Journal of Engineering Thermophysics","volume":"33 2","pages":"250 - 268"},"PeriodicalIF":1.3000,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Engineering Thermophysics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S1810232824020024","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
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Abstract
Experimental data were obtained on heat transfer in horizontal layers of dielectric liquid HFE-7100 of various heights at atmospheric pressure. The heat transfer during boiling was studied on a smooth stainless steel surface and on a capillary-porous stainless steel coating manufactured by the SLM/SLS 3D printing technology. Comparison of the values of temperature pressure and critical heat flux on the smooth surface and on the capillary-porous coating has shown that in HFE-7100 layers with height below 6 mm, the heat transfer regime changes from pool boiling to boiling in thin layers of liquid. At a heat flux density of 100 kW/m2, the temperature difference obtained on the capillary-porous coating was six times lower than that on the smooth surface.
期刊介绍：
Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.
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