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Influences of refrigerant-based nanofluid composition and heating condition on the migration of nanoparticles during pool boiling. Part II: Model development and validation
Peng H(彭浩); Ding GL(丁国良); Hu HT(胡海涛); Ding, GL (reprint author), Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
Source PublicationINTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
2011
Pages1833-1845
Conference Name23rd International-Institute-of-Refrigeration(IIR) International Congress of Refrigeration
Conference DateAUG 21-26, 2011
Conference PlacePrague, CZECH REPUBLIC
AbstractThe objective of this study is to propose a model for predicting the migration characteristics of nanoparticles during the refrigerant-based nanofluid pool boiling. In establishing the present model, the departure and rising processes of bubble, as well as the movement of nanoparticles in the liquid-phase are firstly simulated; then the capture of nanoparticles by bubble and the escape of nanoparticles from the liquid-vapor interface are simulated; finally, the migration ratio of nanoparticles is obtained by flotation theory combining the analysis on the boiling process. The proposed model can predict the influences of nanoparticle type, nanoparticle size, refrigerant type, mass fraction of lubricating oil, heat flux and initial liquid-level height on the migration of nanoparticles. The migration ratio of nanoparticles predicted by the model can agree with 90% of the experimental data of within a deviation of +/- 20%, and the mean deviation is 12.1%. (C) 2011 Elsevier Ltd and IIR. All rights reserved.
KeywordBubble Liquid Model Particle Cfd Vapor
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Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45321
Collection国家微重力实验室
Corresponding AuthorDing, GL (reprint author), Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
Recommended Citation
GB/T 7714
Peng H,Ding GL,Hu HT,et al. Influences of refrigerant-based nanofluid composition and heating condition on the migration of nanoparticles during pool boiling. Part II: Model development and validation[C]. THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND:ELSEVIER SCI LTD,2011:1833-1845.
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