Effect of the Freeze-Thaw on the Suspension Stability and Thermal Conductivity of EGWater-Based Al2O3 Nanofluids
Joint Authors
Choi, Tae Jong
Jang, Seok Pil
Jung, Dae Soo
Lim, Hyung Mi
Byeon, Young Man
Choi, Im Joo
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper reports the effect of the freeze-thaw on the suspension stability, particle size distribution, and thermal conductivity of EG/water-based nanofluids containing Al2O3 nanoparticles that can be used as improved working fluid for cooling systems.
The EG/water-based Al2O3 nanofluids were prepared using a two-step method with a nanodisperser and decanting processes.
To investigate the effect of freeze-thaw on the suspension stability and thermal conductivity of nanofluids, the prepared nanofluids were frozen at -32°C for 24 hours using a refrigerating chamber, and then they were completely thawed at room temperature for 24 hours.
The suspension stability of the thawed nanofluids was quantitatively analysed for over a day using a Turbiscan.
In addition, the particle size distributions and deformation of nanoparticles dispersed in the nanofluids were measured using a particle size analyzer (PSA) and TEM.
Also, the thermal conductivity of the nanofluids was measured using a transient hot wire (THW) method in temperature from -10 to 70°C.
Based on the results, we show that the suspension stability, thermal conductivity, and particle size of EG/water-based Al2O3 nanofluids were not affected by low temperature.
American Psychological Association (APA)
Choi, Tae Jong& Jang, Seok Pil& Jung, Dae Soo& Lim, Hyung Mi& Byeon, Young Man& Choi, Im Joo. 2019. Effect of the Freeze-Thaw on the Suspension Stability and Thermal Conductivity of EGWater-Based Al2O3 Nanofluids. Journal of Nanomaterials،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1181759
Modern Language Association (MLA)
Choi, Tae Jong…[et al.]. Effect of the Freeze-Thaw on the Suspension Stability and Thermal Conductivity of EGWater-Based Al2O3 Nanofluids. Journal of Nanomaterials No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1181759
American Medical Association (AMA)
Choi, Tae Jong& Jang, Seok Pil& Jung, Dae Soo& Lim, Hyung Mi& Byeon, Young Man& Choi, Im Joo. Effect of the Freeze-Thaw on the Suspension Stability and Thermal Conductivity of EGWater-Based Al2O3 Nanofluids. Journal of Nanomaterials. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1181759
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1181759