Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid
As a type of functional material, nanofluids are widely used to enhance heat transfer; however, as a cold storage agent, there are few studies on its initial freezing temperature. In this study, Al2O3 particles with a particle size of 500 nm were used, and three different cooling rates (1, 5, and 10...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2020-01-01
|
| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.06.093 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850027602596593664 |
|---|---|
| author | Zhang Chensi Liu Bin Guo Heng Chen Aiqiang Zhao Songsong Yang Wenzhe |
| author_facet | Zhang Chensi Liu Bin Guo Heng Chen Aiqiang Zhao Songsong Yang Wenzhe |
| author_sort | Zhang Chensi |
| collection | DOAJ |
| description | As a type of functional material, nanofluids are widely used to enhance heat transfer; however, as a cold storage agent, there are few studies on its initial freezing temperature. In this study, Al2O3 particles with a particle size of 500 nm were used, and three different cooling rates (1, 5, and 10 ℃/min) and three different mass fractions (0.01%, 0.05%, and 0.1%) were used to study the freezing point of the Al2O3-H2O nanofluid. The relationship between the cooling rate and particle concentration was investigated. The samples were divided into nine groups, and each group was tested 60 times; the initial freezing temperature was recorded to obtain its probability distribution. The results show that the initial freezing temperature value is approximately Gaussian; increasing the cooling rate will reduce the initial freezing temperature of the fluid during freezing; however, at different cooling rates, the initial freezing temperature and nanofluid mass fraction do not show the same trend: with an increase in the cooling rate, the initial freezing temperature gradually changes, first decreasing and then increasing with an increase in the nanofluid concentration. Moreover, the degree of influence of heterogeneous crystallization on the initial freezing temperature is greater than that of the solution viscosity. |
| format | Article |
| id | doaj-art-9720dafe27ab4dd0adb3b38cde5c1131 |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-9720dafe27ab4dd0adb3b38cde5c11312025-08-20T03:00:06ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392020-01-014166507508Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O NanofluidZhang ChensiLiu BinGuo HengChen AiqiangZhao SongsongYang WenzheAs a type of functional material, nanofluids are widely used to enhance heat transfer; however, as a cold storage agent, there are few studies on its initial freezing temperature. In this study, Al2O3 particles with a particle size of 500 nm were used, and three different cooling rates (1, 5, and 10 ℃/min) and three different mass fractions (0.01%, 0.05%, and 0.1%) were used to study the freezing point of the Al2O3-H2O nanofluid. The relationship between the cooling rate and particle concentration was investigated. The samples were divided into nine groups, and each group was tested 60 times; the initial freezing temperature was recorded to obtain its probability distribution. The results show that the initial freezing temperature value is approximately Gaussian; increasing the cooling rate will reduce the initial freezing temperature of the fluid during freezing; however, at different cooling rates, the initial freezing temperature and nanofluid mass fraction do not show the same trend: with an increase in the cooling rate, the initial freezing temperature gradually changes, first decreasing and then increasing with an increase in the nanofluid concentration. Moreover, the degree of influence of heterogeneous crystallization on the initial freezing temperature is greater than that of the solution viscosity.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.06.093Al2O3-H2O nanofluidinitial freezing temperaturedistribution probabilitcooling rate |
| spellingShingle | Zhang Chensi Liu Bin Guo Heng Chen Aiqiang Zhao Songsong Yang Wenzhe Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid Zhileng xuebao Al2O3-H2O nanofluid initial freezing temperature distribution probabilit cooling rate |
| title | Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid |
| title_full | Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid |
| title_fullStr | Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid |
| title_full_unstemmed | Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid |
| title_short | Analysis of Initial Freezing Temperature of a New Cold Storage Material Al2O3-H2O Nanofluid |
| title_sort | analysis of initial freezing temperature of a new cold storage material al2o3 h2o nanofluid |
| topic | Al2O3-H2O nanofluid initial freezing temperature distribution probabilit cooling rate |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.06.093 |
| work_keys_str_mv | AT zhangchensi analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid AT liubin analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid AT guoheng analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid AT chenaiqiang analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid AT zhaosongsong analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid AT yangwenzhe analysisofinitialfreezingtemperatureofanewcoldstoragematerialal2o3h2onanofluid |