| An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion | |
Dong, Shuangling; Chen XD(陈晓东) ; Dong, SL (reprint author), Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China.
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| Source Publication | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
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| 2017-08-01 | |
| Volume | 129Issue:2Pages:1255-1263 |
| ISSN | 1388-6150 |
| Abstract | Based on the generalized distribution of the temperature field, an improved model for the thermal conductivity of nanofluid has been derived. The impact of particle size and Brownian motion is modeled through the effective volume fraction, based on particle radius. In the special case, the generalized relationship reduces to the classical Maxwell model. On the other hand, the effect of Brownian movement is equivalent to increasing the effective volume fraction of nanoparticles. The effective radius of the nanoparticle is proposed, where the switching time and the equivalent volume fraction depend on the Brownian velocity of the nanoparticles. Considering the above two effects, an effective model is obtained. Comparison of thermal conductivity for Al2O3-water nanofluid is made between the present model and several theoretical models. Theoretical predictions on CuO-water nanofluid, ZnO-TiO2 hybrid nanofluids and MWCNTs nanofluid are also verified against experimental data. |
| Keyword | Nanofluid Enhanced Thermal Conductivity Maxwell Model Particle Size Brownian Motion |
| DOI | 10.1007/s10973-017-6256-x |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000404994900062 |
| WOS Keyword | WATER NANOFLUIDS ; ETHYLENE-GLYCOL ; HEAT-TRANSFER ; NANOPARTICLES ; TEMPERATURE ; STABILITY ; MIXTURE |
| WOS Research Area | Thermodynamics ; Chemistry |
| WOS Subject | Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical |
| Funding Organization | National Natural Science Foundation of China(51406098) ; Fundamental Research Funds for the Central Universities of China(ZY1614) |
| Department | LNM微纳米流体力学 |
| Classification | 二类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60903 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Dong, SL (reprint author), Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China. |
| Recommended Citation GB/T 7714 | Dong, Shuangling,Chen XD,Dong, SL . An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2017,129,2,:1255-1263. |
| APA | Dong, Shuangling,陈晓东,&Dong, SL .(2017).An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,129(2),1255-1263. |
| MLA | Dong, Shuangling,et al."An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 129.2(2017):1255-1263. |
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| JouArt-2017-084.pdf（747KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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