Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe
文献类型:期刊论文
作者 | He, Yurong; Jin, Yi; Chen, Haisheng; Ding, Yulong; Cang, Daqiang; Lu, Huilin |
刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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出版日期 | 2007-06-01 |
卷号 | 50期号:11-12页码:2272-2281 |
关键词 | nanofluids convective heat transfer TiO2 nanoparticles thermal conductivity viscosity pressure drop mechanism effect of nanoparticle size |
英文摘要 | Stable aqueous TiO2 nanofluids with different particle (agglomerate) sizes and concentrations are formulated and measured for their static thermal conductivity and theological behaviour. The nanofluids are then measured for their heat transfer and flow behaviour upon flowing upward through a vertical pipe in both the laminar and turbulent flow regimes. Addition of nanoparticles into the base liquid enhances the thermal conduction and the enhancement increases with increasing particle concentration and decreasing particle (agglomerate) size. Rheological measurements show that the shear viscosity of nanofluids decreases first with increasing shear rate (the shear thinning behaviour), and then approaches a constant at a shear rate greater than similar to 100 s(-1). The constant viscosity increases with increasing particle (agglomerate) size and particle concentration. Given the flow Reynolds number and particle size, the convective heat transfer coefficient increases with nanoparticle concentration in both the laminar and turbulent flow regimes and the effect of particle concentration seems to be more considerable in the turbulent flow regime. Given the particle concentration and flow Reynolds number, the convective heat transfer coefficient does not seem to be sensitive to the average particle size under the conditions of this work. The results also show that the pressure drop of the nanofluid flows is very close to that of the base liquid flows for a given Reynolds number. (c) 2006 Elsevier Ltd. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Thermodynamics ; Engineering, Mechanical ; Mechanics |
研究领域[WOS] | Thermodynamics ; Engineering ; Mechanics |
关键词[WOS] | THERMAL-CONDUCTIVITY ; LAMINAR-FLOW ; NANO-FLUIDS ; POLYSTYRENE SUSPENSIONS ; TRANSFER ENHANCEMENT ; WATER ; TRANSPORT ; PARTICLE ; AUGMENTATION ; MIXTURE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000246345800025 |
公开日期 | 2015-12-22 |
源URL | [http://ir.etp.ac.cn/handle/311046/106334] ![]() |
专题 | 工程热物理研究所_中国科学院工程热物理所(论文库)_期刊论文(SCI) |
作者单位 | 1.Univ Leeds, Inst Particle Sci & Engn, Leeds LS2 9JT, W Yorkshire, England 2.Univ Sci & Technol, Inst Environm Engn, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China 4.Harbin Inst Technol, Inst Thermal Power Engn, Harbin, Peoples R China |
推荐引用方式 GB/T 7714 | He, Yurong,Jin, Yi,Chen, Haisheng,et al. Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2007,50(11-12):2272-2281. |
APA | He, Yurong,Jin, Yi,Chen, Haisheng,Ding, Yulong,Cang, Daqiang,&Lu, Huilin.(2007).Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,50(11-12),2272-2281. |
MLA | He, Yurong,et al."Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 50.11-12(2007):2272-2281. |
入库方式: OAI收割
来源:工程热物理研究所
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