Thermal Evaluation of Graphene Nanoplatelets Nanofluid in a Fast-Responding HP with the Potential Use in Solar Systems in Smart Cities
Source abstract
Abstract
An experimental study was undertaken to assess the heat-transfer coefficient (HTC) of graphene nanoplatelets-pentane nanofluid inside a gravity-assisted heat pipe (HP). Influence of various parameters comprising heat flux, mass fraction of the nanoparticles, installation angle and filling ratio (FR) of the working fluid on the HTC of the HP was investigated. Results showed that the HTC of the HP was strongly improved due to the presence of the graphene nanoplatelets. Also, by enhancing the heat flux, the HTC of the HP was improved. Two trade-off behaviors were identified. The first trade-off belonged to the available space in the evaporator and the heat-transfer coefficient of the system. Another trade-off was identified between the installation angle and the residence time of the working fluid inside the condenser unit. The installation angle and the FR of the HP were identified in which the HTC of the HP was the highest. The value of installation angle and filling ratio were 65° and 0.55, respectively. Likewise, the highest HTC was obtained at the largest mass fraction of the graphene nanoplatelets which was at wt. % = 0.3. The improvement in the HTC of the HP was ascribed to the Brownian motion and thermophoresis effects of the graphene nanoplatelets.
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Research context
OpenAlex topics: Nanofluid Flow and Heat Transfer · Heat Transfer and Boiling Studies · Solar Thermal and Photovoltaic Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, the University of Adelaide, South Australia 5005, Australia
Department of Mechanical and Industrial Engineering, College of Engineering, Majmaah University, Al-Majmaah 11952, Saudi Arabia
School of Engineering, Ocean University of China, Qingdao 266100, China
Department of Medical Equipment Technology, College of Applied Medical Sciences, Majmaah University, Al-Majmaah 11952, Saudi Arabia
Division of Computational Physics, Institute for Computational Science, Ton Duc Tang University, Ho Chi Minh City 758307, Vietnam
Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
Department of Mechanical Engineering, Lamar University, Beaumont, TX 77705, USA
References (35)
Show source-provided references
1. Effect of structural character of gold nanoparticles in nanofluid on heat pipe thermal performance10.1016/j.matlet.2003.10.009 ↗
2. Role of renewable energy sources in environmental protection: A review10.1016/j.rser.2010.11.037 ↗
3. Renewable energy and sustainable development: A crucial review10.1016/S1364-0321(99)00011-8 ↗
4. Kreith, F., and Kreider, J.F. (1978). Principles of Solar Engineering, Hemisphere Publishing Corp.
5. A review of solar collectors and thermal energy storage in solar thermal applications10.1016/j.apenergy.2012.11.051 ↗
6. Olia, H., Torabi, M., Bahiraei, M., Ahmadi, M.H., Goodarzi, M., and Safaei, M.R. (2019). Application of Nanofluids in Thermal Performance Enhancement of Parabolic Trough Solar Collector: State-of-the-Art. Appl. Sci., 9.10.3390/app9030463 ↗
7. Kreider, J.F., and Kreith, F. (1981). Solar Energy Handbook, McGraw-Hill.10.1115/1.3266267 ↗
8. Thermal performance analysis of a flat heat pipe working with carbon nanotube-water nanofluid for cooling of a high heat flux heater10.1007/s00231-017-2201-6 ↗
9. Thermal performance and efficiency of a thermosyphon heat pipe working with a biologically ecofriendly nanofluid10.1016/j.icheatmasstransfer.2014.08.020 ↗
10. Experimental study on the thermal performance and efficiency of a copper made thermosyphon heat pipe charged with alumina—Glycol based nanofluids10.1016/j.powtec.2014.06.053 ↗
11. Assessment of the thermal performance of a thermosyphon heat pipe using zirconia-acetone nanofluids10.1016/j.renene.2019.01.035 ↗
12. Green synthesis of silver nanoparticles using green tea leaves: Experimental study on the morphological, rheological and antibacterial behaviour10.1007/s00231-017-2065-9 ↗
13. Application of spherical copper oxide (II) water nano-fluid as a potential coolant in a boiling annular heat exchanger10.15255/CABEQ.2014.2069 ↗
14. Upward Flow Boiling to DI-Water and Cuo Nanofluids Inside the Concentric Annuli10.18869/acadpub.jafm.67.223.19404 ↗
15. On the fouling formation of functionalized and non-functionalized carbon nanotube nano-fluids under pool boiling condition10.1016/j.applthermaleng.2015.11.071 ↗
16. Low-frequency vibration for fouling mitigation and intensification of thermal performance of a plate heat exchanger working with CuO/water nanofluid10.1016/j.applthermaleng.2017.04.083 ↗
17. Thermal performance of a heat sink microchannel working with biologically produced silver-water nanofluid: Experimental assessment10.1016/j.expthermflusci.2017.11.007 ↗
18. Nucleate pool boiling heat transfer of binary nano mixtures under atmospheric pressure around a smooth horizontal cylinder10.3311/PPch.2173 ↗
19. Nucleate pool boiling heat transfer to Al2O3-water and TiO2-water nanofluids on horizontal smooth tubes with dissimilar homogeneous materials
20. Review and comparison of nanofluid thermal conductivity and heat transfer enhancements10.1080/01457630701850851 ↗
21. A review on development of nanofluid preparation and characterization10.1016/j.powtec.2009.07.025 ↗
22. Experimental and theoretical studies of nanofluid thermal conductivity enhancement: A review10.1186/1556-276X-6-229 ↗
23. Role of Brownian motion in the enhanced thermal conductivity of nanofluids10.1063/1.1756684 ↗
24. Brownian-motion-based convective-conductive model for the effective thermal conductivity of nanofluids10.1115/1.2188509 ↗
25. Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field10.1016/j.ijthermalsci.2014.05.013 ↗
26. Thermal performance of flat-shaped heat pipes using nanofluids10.1016/j.ijheatmasstransfer.2009.12.007 ↗
27. Study on the convective heat transfer and pressure drop in the micro-channel heat sink10.1016/j.icheatmasstransfer.2008.09.001 ↗
28. An experimental comparison of convective heat transfer and friction factor of Al2O3 nanofluids in a tube with and without butterfly tube inserts10.1016/j.jtice.2015.02.009 ↗
29. Performance characteristics of low concentrations of CuO/water nanofluids flowing through horizontal tube for energy efficiency purposes; an experimental study and ANN modeling10.1016/j.molliq.2018.08.149 ↗
30. Experimental investigation of graphene oxide nanofluid on heat transfer enhancement of pulsating heat pipe10.1016/j.icheatmasstransfer.2017.12.006 ↗
31. Thermal performance of nanofluid in ducts with double forward-facing steps10.1016/j.jtice.2014.10.009 ↗
32. Describing Uncertainties in Single-Sample Experiments
33. The purposes of uncertainty analysis10.1115/1.3242449 ↗
34. Faghri, A. (2014). Heat pipes: Review, opportunities and challenges. Front. Heat Pipes, 5.10.5098/fhp.5.1 ↗
35. Heat pipe efficiency enhancement with refrigerant—Nanoparticles mixtures10.1016/j.enconman.2008.09.045 ↗