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基于熔融盐的氧化铝纳米流体的比热容。

Specific heat capacity of molten salt-based alumina nanofluid.

机构信息

Department of Mechanical Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan.

出版信息

Nanoscale Res Lett. 2013 Jun 21;8(1):292. doi: 10.1186/1556-276X-8-292.

DOI:10.1186/1556-276X-8-292
PMID:23800321
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3693913/
Abstract

There is no consensus on the effect of nanoparticle (NP) addition on the specific heat capacity (SHC) of fluids. In addition, the predictions from the existing model have a large discrepancy from the measured SHCs in nanofluids. We show that the SHC of the molten salt-based alumina nanofluid decreases with reducing particle size and increasing particle concentration. The NP size-dependent SHC is resulted from an augmentation of the nanolayer effect as particle size reduces. A model considering the nanolayer effect which supports the experimental results was proposed.

摘要

关于纳米粒子（NP）的添加对流体的比热容（SHC）的影响，目前尚无定论。此外，现有模型的预测与纳米流体的实测 SHC 存在较大差异。我们表明，基于熔融盐的氧化铝纳米流体的 SHC 随着粒径的减小和颗粒浓度的增加而降低。NP 尺寸依赖性的 SHC 是由于颗粒尺寸减小时纳米层效应的增强而产生的。提出了一个考虑纳米层效应的模型，该模型支持实验结果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/0d0c2a06a42c/1556-276X-8-292-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/70c1cd8d1b9d/1556-276X-8-292-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/a2f4fc5e75e9/1556-276X-8-292-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/005bd5184512/1556-276X-8-292-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/a8a4f3864ee5/1556-276X-8-292-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/0d0c2a06a42c/1556-276X-8-292-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/70c1cd8d1b9d/1556-276X-8-292-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/a2f4fc5e75e9/1556-276X-8-292-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/005bd5184512/1556-276X-8-292-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/a8a4f3864ee5/1556-276X-8-292-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f886/3693913/0d0c2a06a42c/1556-276X-8-292-5.jpg

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