Journal ArticleDOI
Heat and mass transfer characteristics of carbon nanotube nanofluids: A review
TLDR
In this paper, the authors present a comprehensive and up-to-date review of carbon nanotubes (CNTs) being applied in various heat transfer (convective and boiling) and mass transfer systems such as heat exchangers and separators.Abstract:
The pursuit of superior working fluids for heat and mass transfer systems in the industry is on the rise, inspired by not only to maximize revenue but also to accommodate heat dissipation or chemical separation under extreme conditions The addition of a small amount of nanoparticle, a product called nanofluid, has been initiated over the last decade In particular, researchers have employed carbon nanotubes (CNTs) into conventional fluids as their preferred nanoparticles due to the merits of having a remarkable thermal conductivity compared to other nanoparticles Here, we present a comprehensive and up to date review of this incredible fluid being applied in various heat transfer (convective and boiling) and mass transfer systems such as heat exchangers and separators Other critical parameters associated with the practicality of the CNT nanofluids such as pumping power and efficiency are also discussed We surveyed a remarkable range of results of some of the heat and mass transfer studies that strongly depend on the inherent CNT nanofluid characteristics and operating conditions such as CNT treatment, size, concentration, Reynolds number, and so on A major conclusion that can be drawn from this review is the significantly higher heat transfer coefficient at lower pressure drop or pumping power of the CNT nanofluid compared to other nanofluids, which implied better thermal performance of the heat transfer system Besides that, the concentration of CNT is the influential factor to achieve optimum boiling heat transfer while the mass transfer performance of the CNT nanofluid is moderately good against other nanofluids Additionally, CNT treatment using covalent functionalization is crucial for the overall stability and performance of the CNT nanofluid However, several issues that inhibit their widespread use such as possible corrosion-erosion in systems, lack of risk assessments, and high cost of CNT nanofluid must be thoroughly addressed in future studiesread more
Citations
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A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods
Xutong Yang,Chaobo Liang,Tengbo Ma,Yongqiang Guo,Jie Kong,Junwei Gu,Junwei Gu,Minjiao Chen,Jiahua Zhu +8 more
TL;DR: In this paper, the authors reviewed recent progress in the classification, measurement methods, model and equations, mechanisms, commonly used thermally conductive fillers, and the correlative fabrication methods for the thermallyconductive polymeric composites, aiming to understand and grasp how to enhance the λ value effectively.
Journal ArticleDOI
Progress in enhancement of CO2 absorption by nanofluids: A mini review of mechanisms and current status
TL;DR: A comprehensive literature review on CO2 absorption enhancement by nanofluids is presented in this paper, which covers the preparation methods, enhancement mechanisms, and the enhancement factors of the gas-liquid system.
Journal ArticleDOI
Corrugated conductive partition effects on MHD free convection of CNT-water nanofluid in a cavity
TL;DR: In this article, the authors used a triangular wave form of conductive corrugated partition for free convection in a cavity with a corrugation partition which have different fluids on different parts of the partition was numerically examined.
Journal ArticleDOI
Graphene related materials for thermal management
Yifeng Fu,Josef Hansson,Ya Liu,Ya Liu,Shujing Chen,Abdelhafid Zehri,Majid Kabiri Samani,Nan Wang,Yuxiang Ni,Yan Zhang,Zhibin Zhang,Qianlong Wang,Mengxiong Li,Hongbin Lu,Marianna Sledzinska,Clivia M. Sotomayor Torres,Clivia M. Sotomayor Torres,Sebastian Volz,Alexander A. Balandin,Xiangfan Xu,Johan Liu,Johan Liu +21 more
TL;DR: In this paper, the current status of the research of the thermal properties of graphene and other 2D based materials including the manufacturing and characterization techniques and their applications, especially in electronics and power modules.
Journal ArticleDOI
Effects on thermophysical properties of carbon based nanofluids: Experimental data, modelling using regression, ANFIS and ANN
Abdullah A.A.A. Al-Rashed,Maryam Soltanpour Gharibdousti,Marjan Goodarzi,Letícia Raquel de Oliveira,Mohammad Reza Safaei,Enio Pedone Bandarra Filho +5 more
TL;DR: Viscosity, density and thermal conductivity of MWCNT-COOH nanoparticles were studied without adding any surfactants or additives for a range of 20°C.
References
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Journal ArticleDOI
Environmental behavior and ecotoxicity of engineered nanoparticles to algae, plants, and fungi
Enrique Navarro,Enrique Navarro,Anders Baun,Renata Behra,Nanna B. Hartmann,Juliane Filser,Ai-Jun Miao,Antonietta Quigg,Peter H. Santschi,Laura Sigg +9 more
TL;DR: The surface properties of ENPs are of essential importance for their aggregation behavior, and thus for their mobility in aquatic and terrestrial systems and for their interactions with algae, plants and, fungi as mentioned in this paper.
Journal ArticleDOI
Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids)
TL;DR: In this paper, the authors studied the heat transfer behavior of aqueous suspensions of multi-walled carbon nanotubes (CNT nanofluids) flowing through a horizontal tube.
Journal ArticleDOI
A Review of Carbon Nanotube Toxicity and Assessment of Potential Occupational and Environmental Health Risks
TL;DR: It is speculated that exposure to combustion-generated MWCNTs in fine PM may play a significant role in air pollution-related cardiopulmonary diseases by pollutants, and the possible mechanisms of CNT pathogenesis in the lung and the impact of residual metals and other impurities on the toxicological manifestations are presented.
Journal ArticleDOI
Toxicity of nanomaterials
Shahriar Sharifi,Shahed Behzadi,Sophie Laurent,M. Laird Forrest,Pieter Stroeve,Morteza Mahmoudi,Morteza Mahmoudi +6 more
TL;DR: A critical review of the biophysicochemical properties of various nanomaterials with emphasis on currently available toxicology data and methodologies for evaluating nanoparticle toxicity suggests that NPs may need to be sequestered into products so that the NPs are not released into the atmosphere during the product's life or during recycling.
Journal ArticleDOI
Respiratory toxicity of multi-wall carbon nanotubes.
Julie Muller,François Huaux,Nicolas Moreau,Pierre-Damien Misson,Jean-François Heilier,Monique Delos,Mohammed Arras,Antonio Fonseca,Janos B. Nagy,Dominique Lison +9 more
TL;DR: The results suggest that carbon nanotubes are potentially toxic to humans and that strict industrial hygiene measures should to be taken to limit exposure during their manipulation.